Keeping Your Gym Members Safe with a Portable AED

Many gyms and health clubs provide state-of-the-art training and equipment to help their members lead long, strong lives. It's also important to make certain that these facilities have state-of-the-art safety equipment such as CPR supplies and a portable AED (automatic external defibrillator). Without the proper safety equipment, the risk of health club members' deaths greatly increases.

Keeping Your Gym Members Safe with a Portable AED 1

In Massachusetts a woman died from sudden cardiac arrest and while an off-duty paramedic tried to revive her, he did not have the necessary equipment - namely a portable AED. Led by local legislators and the late woman's mother, the state now requires that every fitness center own an AED and have a trained user on duty during all staffed business hours. That is just one example of how a portable AED can combat such tragedies.

Unfortunately, the cost of an automated external defibrillator (as low as $1,000) often times stops health clubs and gyms from providing these life-saving devices. With states now requiring portable AEDs, health clubs may be required to comply and provide the life-saving equipment even if it means negatively impacting the bottom line. Once finances are in order, purchasing a portable AED can be easy if you keep in mind the following steps: 1.

Ensure that the company you are entrusting with your health equipment needs is supported by the Better Business Bureau. Look into the awards they've received - especially safety awards - as well as feedback from their current customers. Are they easy and friendly to work with?

Do you feel they will be around for the long haul? Can you trust them with the health and safety of your members? 2.

Keeping Your Gym Members Safe with a Portable AED 2

Make sure that your portable defibrillators come with a warranty to protect against any malfunctions. While many units are vigorously tested to ensure they are performing properly, you want to rest easy knowing a backup is available if you need it. 3.

Look into a Loaner Program which allows for customers to receive an identical defibrillator unit to replace a unit that needs service or repair. Verify that your AED supplier will provide a loaner unit if your unit ever needs to be serviced, repaired or replaced. 4.

Verify that the AED comes complete with everything you need to get started, including the device itself as well as a carrying case, electrodes, a battery, operations manual, training DVD and AED check card. Don't forget the aforementioned Warranty and Loaner Program. 5.

Examine the various customer service offerings and see if they meet your needs. Do units come with a 30-Day Money Back Guarantee? What is the charge for shipping?

Are there any additional products offered (either discounted or free-of-charge) that you can bundle with your order? 6.When an AED is available, proper training on how to use the device is a key component.

The American Red Cross provides training in addition to other life-saving training such as CPR and first aid. According to the Red Cross, its "first aid, CPR and AED programs are designed to give you the confidence to respond in an emergency situation with skills that can save a life." Supporting the health and fitness of one's local community goes well above supplying cardio equipment and free weights.

Gym and health club executives need to proactively ensure their members are safe at all times.

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How to Use a Dental Intraoral Scanner: 5 Key Tips You Should Know
How to Use a Dental Intraoral Scanner: 5 Key Tips You Should Know
Take a look at the benefits outlined below, and if you are interested, contact us. We look forward to sharing our experience in training your office so that your integration of the intraoral scan into your office is quick and painless.This article covers some tips to help you get started and refine and expand the use of intraoral scanning in your practice. The goal is to give you a realistic look at what you can do to avoid the pitfalls that I have experienced.If you are looking for a high-speed intraoral scanner it is important to take into account the size and weight of the scanner as well as the dimensions of the tips to make sure the speed improvement does not affect the resolution or capabilities. A faster scanning experience can come at the expense of a heavier scanner with larger peaks that can capture more data and cause discomfort to your patients. The careful consideration of the daily experience of the practitioners with scanner and wand is the key to the lasting scan success.Older scanners can limit the scanning area to the best individual restorations.5 Another important aspect to consider when integrating intraoral scanners into clinical practice. Ergonomics is about using intraoral scans and integrating them into the workflow of the patient.Improvements to the new generation of scanners include the size of the tip and the weight of the wand. The tips are smaller and easier to use on molars and more comfortable for the patient. 5 lightweight rods also offer ergonomic advantages. 5-7 newer scanners can obtain accurate colors from 3D models of dental arches during the scan, unlike the general colors of older scanners. The first generation scanners used powder turbidity,5,13 Tooth tissue is present on many reflective surfaces such as enamel, crystals, polished surfaces, amalgam fillings and crowns that make up the scan 4,13. To prevent this, some intraoral scanners require a powder on the surface to increase diffuse light.A new addition to many dental hygiene appointments is the installation of intraoral digital scanners. Intraoral scanning can be useful in cases where you do not need or want things like bleach bowls. However, you need to want to record both physically and digitally for the patient, and unlike traditional orthodontic brackets and wires, intraoral scanning is characterized by being able to leave the hardware behind without having to remove, remove, remove, tear or distort the impression.One of the most important things to know about things like bleach trays is that when you make them for your office, you have to print the model, and that will probably at least point to something that takes longer to take hold than an old-school impression.A digital impression can be a useful way to build your practice and attract new patients by offering an alternative to traditional imaging techniques. Showing your patients what you are talking about can create a higher level of trust and understanding. Instead of spending time following a scale or discussing oral hygiene instructions, you should use digital images to show patients the areas they need to pay more attention to.Digital scanners can also provide other business opportunities for practices offering orthodontic services. Owning an intraoral scanner not only saves time and material costs for your stool, but also provides better results for your patients.Most scanners on the market allow you to send the scan to your dental laboratory after the technician has made your crowns and marked the edges. But beware direct scans from their corporate offices, where employees mark margins and send the data to the lab. Detours to get the data from the scanner to the company lab can lead to delays and in some cases prove to be times when the lab does not receive the scan for a few days.After discussing how the scanning should be done, the patient is asked to hold his open camera between the teeth to collect the image. Blow air between the teeth and ask the patient to swallow will help you collect your picture.Another nice feature of the Patient Monitoring App is that it can be used for previous scans that you made with older models of the Trio scanner. It enables long-term visual verification and comparison of patient scans. For example, with our Trios 4 years worth of 3 scans set up for patient monitoring, we can perform multiple scans of the same patient.There are many different ways to capture dental imprints, from traditional imprints to the wide variety of intraoral scanners that are available today on the market. When it comes to getting crowns, partial crowns, night watchmen and other dental equipment, the intraoral scanner (iOS) is your friend. With iOS, SENSE has replaced older techniques such as double scanning and CBCT, which are based on radiological scans of the patient and his plaster model.It is no secret that 3D technology and 3D scanners in the dental sector are becoming increasingly important. We have already covered the top 3D scanner in the dental laboratory and the larger scanners that, as the name implies, are used in dental laboratories to make devices and ready-made imprints. An intraoral 3D scanner is a small hand-held scanner that enters the patient's mouth to examine the inside and scan the teeth.Studies have shown that patients love the instant 3-D images provided by intraoral scanners, and some believe that doctors who use digital imaging systems are more competent, savvy, and advanced. Intraoral 3D scanners are faster to process than impression scans, meaning scans can be used to skip the imprint phase.Whether you use implants in your practice or work with a periodontist or oral surgeon, the use of an intraoral scanner for optimal workflow can reduce your implant and restoration time by up to 33%. When DSD founder and CEO Christian Coachman visited the headquarters of Align Technologies in Sao Paulo, Brazil, to learn more about the Itero Element 5D Intraoral Scanner, he gained valuable insights into how to improve a digital workflow in dental clinics. We are a leader in the digital implant workflow, so don't hesitate to contact us to find out more.Digital Smile Design is passionate about finding solutions that help dentists distinguish themselves and create efficiencies with the latest technology. Our first step is to understand the real power of technology and how it can help improve the diagnosis, treatment planning and patient communication process. That is one of the reasons why DSD in 2019 partnered with Align Technology. For DSD founder and CEO Christian Coachman, the Itero Element 5D intraoral scanner is the best when it combines the power of diagnostic, restorative and Invisalign workflows into a single comprehensive scan, he says.
2021 10 09
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How to Use a Virtual Anatomy Table: 5 Key Tips You Should Know
How to Use a Virtual Anatomy Table: 5 Key Tips You Should Know
The tools are proving useful as teachers and students adapt to this new way of learning. "These are tools that are proving very useful for teachers and students to adapt to the new learning methods.Alsup points out that the tool contains a library of cadaver atlases (images depicting and mapping the human body) as well as relevant laboratory manuals and dissection instructions. Students can also access an educational library containing anatomical learning objectives, dissection videos, cadastral-based extended reality resources and interactive multiple-choice image-based quizzes. The tool also includes high-quality content and expert assessments of anatomical learning resources.The courses on human anatomy represent a systemic approach to the study of the human body. Many courses start with an introduction to anatomical terminology and an overview of cellular processes and tissue classifications. Hundreds of institutions have introduced anatomy tables as anatomical and physiological teaching aids.For example, understanding how the body is three-dimensional and how different systems fit together is a major challenge for medical students learning anatomy. Memorizing a class can be difficult, and it can be even more frustrating if you have multiple classes. Human anatomy courses often offer laboratory components that parallel and reinforce these concepts through anatomical models, histological slides, skeletal material and cadaver demonstrations.Although memorization is not for everyone, there is an elite group of people who are born with the right skills, and everyone can be trained to develop their memorization skills. Some competitors claim that practicing visualization techniques and using memory tricks enables them to memorize large chunks of information. Research shows that students who use memory tricks perform better than those who do not.For example, suppose you want to remember the names of four plants: garlic, rose, hawthorn and mustard. The only way to memorize different anatomical structures and their functions is to repeat them and repeat them, repeat them and repeat them as you have guessed. This is obvious, but the more you go, the more likely it is that you will remember.It is great to find a routine that works for you, but it is also good to change things around and use different learning techniques to reinforce material and avoid getting stuck in a rut. As mentioned in Tip # 3, the repetition of different forms of study methods can make the study more effective. When you read a textbook, write notes, use flash cards or study visual diagrams, you are more likely to remember and understand the material when using flashcards.The human body is a complex structure consisting of the nervous system, the locomotor system, the circulation system, the respiratory system, the digestive system, the intestinal system, the urinary tract, the reproductive system, the immune system, the lymphatic system and the endocrine system. When you learn about the complex structures of the human body, it is important to plan and manage time when you plan study sessions. Determine which method works best for you and develop your learning habits based on your preferred learning style.I attended Peninsula Medical School in Plymouth, which does not use cadavers in its classes. Most students attend medical school enthusiastically, but not all. I know there are some concerns about what people think, so after my first year I will share my thoughts with a carcass.In this article, Iall shows how virtual reality can change the way educational content is delivered. Before we dive into the details of how VR education can help improve learning process, it is important to understand why we need to improve the quality of education first. Education can be transformed in this way: VR education works on the premise of creating a virtual world, real or imagined, and enabling users not only to see it, but also to interact with it.These are just some of the features that make virtual reality education so powerful. With VR, students are limited only to word descriptions and book illustrations, they can explore topics and see how things are put together. Good learning comes from patient interaction, so reading textbooks is important to broaden your knowledge, but nothing should be put at your door.First-year teachers love to have everything you need to access your computer to complete timetables. We have been using Stemscope for several years, and our students are better prepared for science in the following grades. Our middle school teacher says students arrive with a stronger science foundation than they did a few years ago.If you are a student, lecturer or employee of M University Health Sciences, you can reserve a table at any time when the library is open. We also welcome local education communities and hoard groups who visit the library and use the Anatomage Table. Exported image of the anatomy agent table rendered in the anatomy agent table software.The Human Anatomy Atlas content search function is a great tool for users looking for a particular structure. If you know the name of the structure and can spell it, you can tap the search bar icon in the lower right corner of the screen and type the name you are looking for in the search box. The search results screen shows you individual structures, systems, regions, views, animations and quizzes from which you can choose.Use the backarrow in the upper left corner of the screen to return to the previous view. Remember that when you add or remove a structure, you can undo your recent changes to a model and restore it to its original state, just as you opened the model from the menu using the arrow beside the Settings button at the top of the menu bar. Use the buttons below to return to your original view in the isolated mode of the Atlas of Human Anatomy.You can see the difference between a male and a female model from the anatomage table, but the anatomical variance is not seen. On the other hand, as already mentioned, we are not able to recognize the inner anatomy. In the Atlas of Human Anatomy, look at the reset button (marked in red) and the bread crumb path (marked in green).An alternative to using a carcass is the so-called anatomage table, in which two adult carcasses (male and female) are depicted, which have been digitally imaged and cut into sections. The bodies are then reconstructed into a three-dimensional digital image. A VAL can be equipped with two virtual cadastral tables that resemble oversized tablets or computer devices.Like a real carcass, virtual carcasses allow students to navigate the body with ease and view organs and systems in a way that is impossible in real people, said John R. Harrison, Ph.D., director of UConn's Virtual Human Anatomy Laboratory. Students can dissect the virtual body and make cuts with their fingers or touch screens. For example, students can use a virtual body to cut a slice into their chest and give themselves a so-called long axis parasternal view of their heart, said Harrison.
2021 09 28
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Virtual Anatomy Table - How to Use the Best One for Your Needs
Virtual Anatomy Table - How to Use the Best One for Your Needs
The great thing about the Atlas AR feature is that it can be used at your desk, home or in the library in the lab, at school, at the library or in your Dorm Room.Norbert von der Groeben, student in a bioengineering class, who learns human anatomy under the guidance of a cadaver. The contrast between the user experience of the Anatomage Table and course material shows that the Anatomage Table provides some sort of "cadaver substitute" without the need for a textbook, and that course material can replace the textbook, serve as learning tools and improve traditional cadaver and dissection laboratory experiences. Faculties are experimenting with how the table can be used as a possible teaching aid for anatomy students, medical students, residents, and even patients.Founded in 2015, Life Universities Virtual Anatomy Lab enables students to study anatomy with a state-of-the-art digital anatomy tablet and carcass. Life University's Virtual Anatomical Lab has more anatomical data and tables than any other university in the world.Matthew Kilbride, teaching technology and simulation specialist, demonstrates the new Anatomage Table available on the Blue Bell Pottstown campus. The Anatomages Table is a 3-D, life-size, interactive anatomy tool integrated into some of the most prestigious medical institutions around the world, including the University of Nebraska Medical Center. It offers health science students a new opportunity to study anatomy and physiology.Health science students at Montgomery County Community College will use a new, ground-breaking technology to study human anatomy and physiology this fall. Last spring, the college acquired two anatomical tables that students and faculty can integrate into their courses of study.Louisiana Tech students in all health sciences fields will benefit from an unprecedented collaboration of learning that begins this fall with the opening of the Justin-Jeanette Hinckley Virtual Anatomy Lab at Carson-Taylor Hall. At the heart of the laboratory is the Anatomage Table, the most advanced 3D visualization and virtual dissection tool ever developed for anatomy and physiology classes. The anatomage table works in tabular form and combines radiology software with clinical content to provide students the chance to learn all levels of the section and examine the body from the individual cell level upwards.This interactive approach allows students to dissect, explore and visualize anatomy in 3D, whether they are in a cadaver or in a laboratory. Students use the machine to retreat and explore every layer of the replica body, starting with the skin, muscles, circulation and central nervous system. Students have access to more than 1,600 MRI and CT scans of human and animal development and injury. More can be downloaded and made available as the technology evolves and grows.The spreadsheet software allows you to publish the MRI scan on a straight board or canvas, giving students the opportunity to scroll through the images in the axial, coronal and sagittal planes. The table can also be used in person so that students can learn from the instructors who teach with it.The more you play with the anatomical models as a teacher, the more creative you and your students become. Students can dissect virtual corpses and make cuts only with their fingers and touch screens. As soon as the students sit on the anatomy table, they can use the screenshot function to capture their images on the table or create a PowerPoint or Word document that they can hand over to you.Like a real cadaver, virtual cadavers offer students the ability to navigate with ease the body and see organ systems and views that would be impossible with real humans, said John R. Harrison, Ph.D. Director of the UConn Virtual Human Anatomy Lab. Using the virtual body, students can, for example, cut a slice into the chest to allow them a so-called long-axis parasternal view of the heart, Harrison says. With a virtual dissection table, students are limited in their time to work by hand, but when the program needs to be shared, the BodyViz software provides each student with its own dissection platform.This approach gives students more time to study real anatomy. In addition, the BodyViz software can be downloaded to a student or faculty computer, reducing the mortuary laboratories for students who can take it with them on the go to zero. This lab is an incredible learning tool and I am envious of the students who will use it in the coming year.The anatomage table is expensive for institutions and starts at $38k, but it is cheaper in the long run than using a carcass. It should be noted that anatomages are intended to be used with traditional textbooks and laboratory manuals that can cost students more than $100. The beauty of this table is that it can be used in the laboratory every semester, year after year. So the price is high, but it is a one-off deal.The motivation to acquire the anatomage virtual anatomy and dissection table came from medical examiner Joshua Stephany, M.D. Who saw it while filming a television pilot for NBC Universal in Tennessee.The first student to work on the table was a new student in an anatomical biotechnology course taught by Srivastava. The traditional dissection laboratory was filled with rows of medical students and carcasses covered with a blue tarp. Two dissection tables were uncovered, and a human arm was on display during the day-long session.When the course was over, they turned to the room next door to view a 3-D image of the shoulder and chest of the world-famous Bassett collection of human sectionation.Carcasses and three-dimensional anatomical models on the virtual dissection table that Bowler and her Stanford classmates will test for the first time this spring. The Virtual Anatomy Table features a life-size model of the human body that can be manipulated via a touchscreen interface. Students can zoom in and out, rotate different structures and remove individual organs.Methods and case studies were used to compare the exam results of a student who had completed a dissection using the virtual anatomy dissection table with her 25 member cohort who had completed their dissection without cadaver. During the laboratory section of the course, students in the cohort who tested using the anatomical table performed on average 3.7 percentage points better than those who tested without a model and 9 percentage points faster than those who tested with a carcass.
2021 09 28
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How to Use a Bottle Sterilizer
How to Use a Bottle Sterilizer
Bottle sterilizers can provide an extra degree of sterilization for your baby's bottles beyond what you can get with soap and hot water. Weekly bottle sterilization is recommended for babies under the age of 1. Electric sterilizers are efficient, easy to use, and often perform other functions, like drying, deodorizing, and warming your bottles. Microwave sterilizers work very fast and do not require outlets or counter space. Cold water sterilizers are great if you are traveling or do not have access to electricity. Choose the type of sterilizer you want, and learn how to operate it correctly.(PDF) Evaluation of Dimensional Changes of 3D Printed Models After Sterilization: A Pilot StudyAvailable via license: CC BY 4.0 Content may be subject to copyright. Evaluation of Dimensional Changes of 3D Printed Models After OMFS IMPATH research group, Department of Imaging & Pathology, Faculty of Medicine, KU Leuven & Oral and To assess the effect of two of the most commonly used sterilization techniques on 3D printed clinical objects. The two sterilization methods used in our hospital and investigated in this paper are: Steam heat and Gas plasma. Three objects were printed and tested in this study: a tooth replica, an orthognathic final splint, a surgical cutting guide for the purpose of mandible reconstruction. For each of the 3 objects, 4 copies were made: one original STL object, one copy of the object pre-sterilization, one copy of post-steam heat sterilization, and one copy of post-gas plasma sterilization. Each printed object was scanned using a high resolution CBCT protocol and the compared (morphologically and volumetrically). At the level of volumetric changes, no difference was found between pre and post-sterilization for both methods evaluated. As for the morphological changes, only differences were noticed with the orthognathic splint object indicating deformation of the printed splints after sterilization. Larger differences were observed with heat sterilization, making it less reliable. Sterilization of dental objects to be used in a clinical setting may lead to deformation of the printed model, especially for heat sterilization. Further investigations are needed to confirm these findings. Additive manufacturing, rapid prototyping or three-dimensional (3D) printing is a growing technology which is changing the manufacturing industry . The most common techniques are Stereolithography (SLA), Selective Laser (LOM). Recent developments in medical imaging along with the developments in Computer Aided Design/Computer Aided Manufacturing (CAD/CAM) allowed the fast rise of 3D printing in medicine. Applications of 3D printing in the medical field vary from treatment planning, surgical guides, teaching models, educational tools to printing scaffolds for tissue engineering and direct printing of tissues and organs . The fields of * Address correspondence to this author at The OMFS IMPATH research group, Department of Imaging & Pathology, Faculty of Medicine, KU Evaluation of Dimensional Changes of 3D Printed Models The Open Dentistry Journal, 2018, Volume 12 dentistry and maxillofacial surgery are also benefiting from 3D printing used in orthognathic surgery, implantology, These various clinical applications made the sterilization of the printed prototypes mandatory for their use intraoperatively. Methods used for instrument sterilization in surgical care should be reliable, practical and safe for the instruments. The main two categories are sterilization with heat and sterilization with gas . The topic of sterilization of 3D printed objects for the purpose of use in the operation theatre is barely addressed , while sterilization of titanium in dental implants have been investigated . The aim of this study was to investigate the effect of two of the most commonly used sterilization techniques on 3D The two sterilization methods used in our hospital and investigated in this paper were: Steam heat and Gas plasma. Steam heat also known as autoclave is a device used to sterilize equipment by subjecting them to high pressure saturated steam at 121C (or higher) for around 15-20 minutes depending on the size of the load and the contents. For this study, the temperature was set to 134C and the total duration of the cycle (including heating and cooling down) Sterilization with gas. Specific gases exert a lethal action on bacteria which destroys enzymes and other vital biomechanical structures. For sterilization, Ethylene Oxide (EtO) is the most commonly used but is highly flammable, needs special equipment and has a lengthy procedure to reduce tissue toxicity . On the other hand, gas plasma sterilization is recommended to materials sensitive to temperature, humidity and which do not comply for EtO sterilization can be sterilized using gas plasma (vaporized hydrogen peroxide, VHP). It is a relatively new option that can provide low heat sterility cycles with none of the off-gassing concerns present with EtO. For this study, the temperature was set to 55C and the total cycle duration was 50 minutes. Three objects were printed and tested in this study: An orthognathic final splint representing the procedure of orthognathic surgery as described by Shaheen A surgical cutting guide for the purpose of mandible reconstruction . Each object was selected to cover the different applications in oral and maxillofacial surgeries and was provided in Stereolithography (STL) format. Each object was printed twice in biocompatible material as it is the case in clinical practice using the PolyJet technology of Objet Connex 350 (Stratasys, Eden Prairie, MN USA) with layer thickness of 30m. PolyJet 3D printing works similarly to inkjet printing, but instead of jetting drops of ink onto paper, PolyJet 3D printers jet layers of curable liquid photopolymer onto a build tray which are instantly cured with ultra violet light. Fine layers accumulate on the build tray to create one or several 3D models or parts . Fig. ( ) shows the original objects Each copy was scanned with a Cone Beam Computer Tomography (CBCT) using a high resolution protocol intended for objects and not for patients with the following acquisition settings; system: Planmeca Promax 3D Max, Fig. (1). The original objects in STL format: Orthognathic splint, surgical guide and TAT. One copy of each object was sterilized using autoclave and the other copy of each object was sterilized using gas plasma. After sterilization, each object was scanned using the same CBCT protocol as pre-sterilization, forming 3 groups: TAT group, splint group and surgical guide group. Within each group, there are 4 copies: the original STL object, one pre-sterilization, one post-sterilization heat and one post-sterilization gas. Evaluation of Dimensional Changes of 3D Printed Models The Open Dentistry Journal, 2018, Volume 12 The DICOM (Digital Imaging and Communications in Medicine) images of each scan were exported from the CBCT and imported into Mimics Medical 19.0 (Materialise, Leuven, Belgium). The same threshold value was used to standardize the segmentation procedure for all objects to construct 3D objects which were exported from the software as STL files. These files were then imported into the 3-matic 11.0 software (Materialise, Leuven, Belgium) for further For each group, the pre-sterilization object was registered to the original object (STL used for printing) using surface based registration. Then each post-sterilization copy was registered to the registered pre-sterilization object. Fig. ( ) shows the example of TAT group. Fig. (3). The TAT group: original STL, pre-sterilization, post-sterilization heat, post-sterilization gas and all objects registered to the We report on the volume of each object, but for more accurate morphological assessment, part comparison analysis was used. The part comparison analysis is also known as color distance map where the distance is calculated at each point on the surface of an object and the corresponding point at the surface of another object. The mean, standard deviation and Root Mean Square (R,M,S) were reported between the following: Pre-sterilization and the original object: to assess the deviation of the printing and scanning procedures from the Post-sterilization heat and the pre-sterilization object: to assess the deviations resulting from the autoclave Post-sterilization gas and the pre-sterilization object: to assess the deviations resulting from the gas plasma Table shows the results of the volume per group and the percentage change ( indicates an increase and indicates a decrease in volume). For the accuracy test of the printing and the scanning procedures, the percentage change was between 0% to 1.8% increase in volume indicating a high accurate procedure. As for the accuracy of the heat sterilization, the percentage change in volume ranged from -0.6% to 1.5%. For the gas sterilization, the volume percent change ranged from 0.6% to 0.9% indicating that for both methods no significant change was reported. Table 1. Results of the volumetric assessment for the TAT, splint and the surgical guide groups. Table shows the results of the part comparison analysis. The differences reported were all below 0.1mm. The results of the splint group was not reported due to the failure of complete registration of both post-sterilized objects to the pre-sterilized one as shown in Fig. ( ). Therefore, the registration was repeated and based on the middle part of the splint instead of a global surface registration to allow the assessment of deformation at the side parts. Table 2. Results of the morphological assessment for the TAT and the surgical guide groups. Fig. (4). The outcome of the registration per group. Evaluation of Dimensional Changes of 3D Printed Models The Open Dentistry Journal, 2018, Volume 12 In order to assess the changes occurred post-sterilization for the splint object, another method was used as shown in Fig. ( ). A curve was drawn on the pre-sterilized splint and 7 landmarks (points) were indicated. The same landmarks were indicated on the corresponding positions once on the post-sterilization heat splint and another on the post- sterilization gas splint. The distances error were measured and presented in Table . Table 3. The distances between the 7 landmarks on post-sterilized heat and gas splints to the original curve respectively. Fig. (5). A curve drawn on the pre-sterilized splint and 7 landmarks (points) indicated. In this study, we evaluated the effect of sterilization methods used in our hospital set-up on 3D printed surgical objects. The two most commonly used sterilization techniques are steam heat (autoclave) and gas plasma which were investigated in this paper. Whether the sterilization has an effect on 3D printed object or not is a topic not really addressed. Surgical guides especially in the field of oral and maxillofacial surgery are extensively used due to the presence of several CAD/CAM tools and low cost 3D printers. In this paper, we focused on the PolyJet technology with the Objet Connex 3D printer (the biocompatible material) since it has higher accuracy when compared to other technologies and has been evaluated for biocompatibility in accordance with the industrial standard. The results in this study showed that the percentage changes in volumes are negligible and were up to 1.5% increase in volume. As for the morphological assessment, the deformity of the objects after sterilization was also minor for the TAT and the surgical guide with a maximum mean error of 0.014mm. Although the volume changes for the splint objects after both the heat and gas sterilization was negligible, but the registration procedure failed due to the noticeable deformity in the objects after sterilization as shown in Fig. ( ). Such deformities made the splints unusable and inaccurate for the operation. Further investigations showed that the curvature of the splints was decreased compared to the pre-sterilization situation with larger differences at the borders (points 1 and 7) with heat sterilization compared to gas sterilization (Table ). The heat sterilization had a maximum difference of 1.7mm while the gas sterilization had a These findings indicate the necessity of further investigations on the effect of sterilization especially the heat on different 3D printing technologies and materials used as surgical guides. Furthermore, these findings are yet to be confirmed since they are not conclusive due to the small sample size, therefore, for future work we would like to enlarge the sample size and include different printing technologies with complex shapes and sizes. The effect of heat and gas plasma sterilization on 3D printed surgical objects with biocompatible photopolymer material was investigated. At the level of volumetric changes, no difference was found between pre and post- sterilization for both methods evaluated. As for the morphological changes, only differences were noticed with the orthognathic splint object indicating deformity of the splints after sterilization. Larger differences were observed with the heat sterilization, making it less reliable. Further investigations are needed to confirm these findings. No human or animal were used in this study. The authors declare no conflict of interest, financial or otherwise. Marro A, Bandukwala T, Mak W. Three-dimensional printing and medical imaging: A review of the methods and applications. Curr Probl Mehra P, Miner J, D'Innocenzo R, Nadershah M. Use of 3-d stereolithographic models in oral and maxillofacial surgery. J Maxillofac Oral Vezeau PJ, Koorbusch GF, Draughn RA, Keller JC. Effects of multiple sterilization on surface characteristics and biologic responses Khalil W, EzEldeen M, Van De Casteele E, Validation of cone beam computed tomography-based tooth printing using different three- Evaluation of Dimensional Changes of 3D Printed Models The Open Dentistry Journal, 2018, Volume 12 Shaheen E, Sun Y, Jacobs R, Politis C. Three-dimensional printed final occlusal splint for orthognathic surgery: Design and validation. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
2021 09 10
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Discovery of a Female Cat with Testicles Among Weirdest Pet Claims
Discovery of a Female Cat with Testicles Among Weirdest Pet Claims
A North Shore pet owner got the shock of her life to learn her female cat also had testicles. Along with the discovery of a hermaphrodite cat, other owners have been left perplexed after discovering their pets had consumed anything from a roll of dental floss, compact mirror, blanket, sewing needle to a chicken skewer. These discoveries were among the weirdest PetCare claims received by Southern Cross last year. Lisa Newlands adopted her domestic long haired cat Cameo in 2014 with the reassurance she had been spayed. But at the end of last year, Newlands became suspicious about whether it the standard neutering had worked when her usually feisty cat started befriending a stray male. After Cameo became really sick with a high temperature and stopped eating for the second time in two months, an ultrasound revealed she had a large mass in her stomach area. The ginger cat underwent surgery and for the first time in her vet's 13 year career, she discovered two cancerous testicles in the female feline. Cancerous testicles emit oestrogen, which was why the tom cat was hanging around. "The vet was just bamboozled. She had never seen anything like this in her entire career," Newlands said. Cameo's total vet bill was $2531, but Newlands said fortunately $2013 was covered by pet insurance. Newlands estimated Cameo had racked up almost $10,000 in vet bills since she had owned her because she was notorious for getting in fights with other cats and was grateful most of it had been covered by her pet insurance. Another pet owner also claimed on a hefty $8000 vet bill after their german shepherd cut its leg on a metal shoe rack as it tried to escape from two cats. The traumatic incident resulted in the dog having to undergo two surgeries and receive post operative care. In another case, a labrador retriever went under the knife to remove pieces of a blanket it had eaten from its stomach at a cost of $6000. Another owner commented that they were amazed that the chicken skewer eaten by their miniature poodle came out whole after being endoscopically removed. And a hungry beagle's desire to snaffle up a tasty fruit cake also backfired on it after the raisins caused it to have renal failure. The wee beagle had it's kidneys flushed at the vet. But the list of weird claims gets crazier after a french bulldog ate a whole roll dental floss it had found in a visitor's bag and a Shetland sheepdog had to be treated for munching on dish cloths on two separate occasions. The mischievous mutt managed to escape surgery and was given drugs to help it either poo or vomit the rags out. And it wasn't just playful pooches causing their owners angst, a domestic long haired cat also required surgery to remove a sewing needle it had swallowed and devon rex cat had 46 hair ties surgically removed from its stomach. Both treatments cost their owners more than $2000 each. Southern Cross Pet Insurance general manager Anthony McPhail said everyday, unexpected accidents could end up costing pet owners a lot of money at the veterinary clinic. McPhail said while most of the claims processed were for typical illnesses and routine checks, the ones where pets had managed to eat something they shouldn't have still surprised them. He said the stories could be amusing, but still caused quite a lot of stress to the pet and both its owner and their wallet. "We recommend owners prepare for those unexpected veterinary visits by either setting some money aside or considering pet insurance," McPhail said.
2021 07 27
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Citing Privacy Concerns, U.S. Panel Urges End to Secret DNA Testing
Citing Privacy Concerns, U.S. Panel Urges End to Secret DNA Testing
NEW YORK (Reuters) - They're called discreet DNA samples, and the Elk Grove, California, genetic-testing company easyDNA says it can handle many kinds, from toothpicks to tampons. Blood stains from bandages and tampons? Ship them in a paper envelope for paternity, ancestry or health testing. EasyDNA also welcomes cigarette butts (two to four), dental floss ("do not touch the floss with your fingers"), razor clippings, gum, toothpicks, licked stamps and used tissues if the more standard cheek swab or tube of saliva isn't obtainable. If the availability of such services seems like an invitation to mischief or worse - imagine a discarded tissue from a prospective employee being tested to determine whether she's at risk for an expensive disease, for instance - the Presidential Commission for the Study of Bioethical Issues agrees. On Thursday it released a report on privacy concerns triggered by the advent of whole genome sequencing, determining someone's complete DNA make-up. Although sequencing "holds enormous promise for human health and medicine," commission chairwoman Amy Gutmann told reporters on Wednesday, there is a "potential for misuse of this very personal data." "In many states someone can pick up your discarded coffee cup and send it for (DNA) testing," said Gutmann, who is the president of the University of Pennsylvania. "It's not a fantasy to think about how, without baseline privacy protection, people could use this in a way that would be really detrimental," such as by denying someone with a gene that raises their risk of Alzheimer's disease long-term care insurance, or to jack up life insurance premiums for someone with an elevated genetic risk of a deadly cancer that strikes people in middle age. "Those who are willing to share some of the most intimate information about themselves for the sake of medical progress should be assured appropriate confidentiality, for example, about any discovered genetic variations that link to increased likelihood of certain diseases, such as Alzheimer's, diabetes, heart disease and schizophrenia," Gutmann said. The commission took on the issue because whole genome sequencing is poised to become part of mainstream medical care, especially by personalizing medical treatments based on a patient's DNA. That has been driven in large part by dramatic cost reductions, from $2.5 billion per genome in the Human Genome Project of the 1990s and early 2000s to $1,000 soon. Several companies, including Illumina Inc. and Life Technology's Ion Torrent division, sell machines that can sequence a genome for a few hundred dollars, but that does not include the analysis to figure out what the string of 3 billion DNA "letters" means. A three-year-old federal law prohibits discrimination in employment or health insurance based on someone's genetic information but does not address other potential misuses of the data. Without such privacy protection, said Gutmann, people may be reluctant to participate in genetic studies that do whole genome sequencing, for fear their genetic data will not be secure and could be used against them. Recommendations from such panels are not binding but have been used as the basis for policy and legislation. One scenario the panel offers is a "contentious spouse" secretly having a DNA sample sequenced and using it in a custody battle "as evidence of unfitness to parent," perhaps because the DNA showed a genetic risk for mental illness or alcoholism. There are no federal laws against that. Or, the panel said, DNA information might be posted in a social networking site "by a malicious stranger or acquaintance," possibly hurting someone's "chance of finding a spouse, achieving standing in a community, or pursuing a desired career path." The bioethics panel recommends a dozen forms of privacy protection, including that "surreptitious commercial testing" be banned: No gene sequencing or other genetic testing should be permitted without consent from the person the DNA came from, it said. About 25 states currently allow such DNA testing. Critics of the lack of genetic privacy thought greater urgency was needed. "The report lays out a lot of important best practices and does endorse further state and federal regulations, but it doesn't offer a timeline," said Jeremy Gruber, president of the Council for Responsible Genetics, a private group that monitors genetic issues. "What will inevitably happen is whole genome sequencing will enter greater use and we won't have proper regulations to insure privacy." A bill introduced in California, home to many DNA testing companies, by state Senator Alex Padilla would ban surreptitious testing, requiring written authorization from the person the genetic sample was taken from. It is not clear how many labs are willing to analyze DNA without that authorization. In practice, well-known genetic testing companies such as privately held 23andMe test only saliva samples that are too large to acquire surreptitiously, such as from a drinking glass or licked stamp. "A person would really know that they are spitting into a tube," said 23andMe spokeswoman Jane Rubinstein. The full report from the presidential commission is at www.bioethics.gov.
2021 07 28
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How to Cut Corn Off the Cob Easily, Quickly, & Safely
How to Cut Corn Off the Cob Easily, Quickly, & Safely
We've all been there: we're enjoying a nice cob of corn, happily covering our face in butter and salt, when suddenly we realize that there's a thread of corn silk stuck in our teeth. We try to dislodge it with our tongue; no luck. We pick around with our fingers; still no luck. That silk is staying there until you return home to your toothbrush and dental floss. And if you think that corn silk is bad for most people, try having braces!Cutting the kernels off corn on the cob not only helps this problem, but also makes corn a lot easier to cook with.There is a problem, of course. I'd like to think I have above-average knife skills, and yet I'm completely scared to try and cut kernels off corn on the cob. There's no way to balance the oblong cob, and you have to cut straight down. To add insult to injury, the kernels corn go flying everywhere; it's nearly impossible to cut them in a neat and orderly manner. But worry not: there are some surprisingly easy (and safe!) ways to quickly and neatly cut corn off the cob.Use a Bundt or Angel Food Cake PanI only recently found out about this (big thanks to Saveur's amazing video channel), but it's now one of my favorite food hacks. Place one end of the cob in the middle of the pan, which will keep the corn stable while you cut down. Then, as you cut the ears off of the cob, they'll collect in the pan instead of scattering everywhere.Construct a Makeshift Bundt Cake PanIf you don't have a bundt or angel food cake pan, you can make your own version. Start with a cake pan, pie dish, or shallow bowl. Then add any stable item that can hold one end of the corn, such as a narrow cup or a shot glass. (My personal favorite is a toilet paper cardboard tube, but please be careful if you try this: these tubes are remarkably flimsy, so if you apply too much pressure they will collapse while you're cutting.) Then proceed just as you would with a bundt or angel food cake pan, until you have a bowl of perfectly cut corn.Cut the Corn in HalfThis is the quickest way to get the kernels off of the cob, but you want to avoid it unless you have a nice knife and are comfortable using it. Start by cutting the corn in half, which is harder than it looks: the core of the cob is extremely hard, and the corn will want to roll while you're trying to cut. So above all, be careful!Now that the corn is in half, each piece has a flat side, making it easier and safer to balance the cob while you cut it. And with each piece half the size of a full cob of corn, there's less mess when you cut the ears off.Then again, if you're hell-bent on keeping the corn on the cob, but still want to get rid of the strings of silk, you can always microwave it.Get More Food-Cutting HacksSometimes unflavored dental floss is better at cutting certain foods than your knife-seriously! And if cutting tomatoes befuddles you, be sure to read our indispensable guide on how to do it right. As for mangoes, turns out you need to bring a drinking glass in order to cut them the right way.
2021 07 28
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How to Make Jewelry From Seeds
How to Make Jewelry From Seeds
Using natural objects to decorate the human body has been practiced for thousands of years. In this day and age, going green with your jewelry can be fashionable in more ways than one. Grow and dry your own seeds, or find them at grocery stores, garden centers or in your backyard. Making jewelry can help satisfy your creative nature, and if you create patterns and designs that appeal to other people, you could market your jewelry and add some green to your pocketbook by utilizing simple materials provided by Mother Nature.Dried seedsCotton cloth1-inch-thick boardDrill1/16-inch drill bitSmall pliersTape measureScissorsRed marker penNeedlePlain dental flossMasking tapePrepare your seeds by sorting through them to eliminate debris and remove broken or misshapen seeds. Wash any seeds that are dirty, and dry them thoroughly. Rub the seeds with a cotton cloth to make them shine.Place a 1-inch-thick board on your work area, and place a seed on the board. Hold the seed securely with pliers. Drill a hole in the seed with a cordless drill with a 1/16-inch drill bit. so this with all your necklace seeds. Drill holes in all your seeds.Measure 32 inches of dental floss with the tape measure, and cut the floss, using scissors. Use a red marker to mark a spot 2 inches from one end of the dental floss. Mark that spot with a red marker. Mark a spot 2 inches from the other end of the dental floss. Wrap a small piece of masking tape around that end.Thread the end of your dental floss through the tiny opening at the top of your self-threading needle, above the eye. Pull the floss through the eye of your needle until you reach the spot marked with masking tape.Thread one seed at a time onto the floss by pushing the needle through the hole you've drilled in the seed. Pull the first seed to the spot marked with the masking tape. Keep adding seeds until you've filled the length of floss between the red mark and masking tape.Remove the masking tape from the end of the floss, and knot the ends of floss together securely. Clip the loose ends of floss close to the knot with scissors to finish your necklace.Drill holes in the center of each seed or at a point that will allow the seed to be threaded so it will lie at the angle of your choosing. Thread all of one kind of seed onto your floss, or alternate seeds of different shapes and sizes. Store pieces of finished jewelry in tightly covered glass jars.Use caution when using a drill. Place seed jewelry in a deep freeze for a couple of weeks, at least once a year, to kill any insects that may infest the seeds. Never eat seeds that you use to make jewelry.
2021 07 28
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