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Endoscopic filtered fluorescence method
30-03-2010
Endoscopic filtered fluorescence method Pitts and Longbottom (1987) explored the use of EFF for the clinical diagnosis of carious lesions and compared results with conventional alternatives on occlusal and approximal sites. This work developed to include the use of an intraoral video system for caries detection, the prototype “videoscope.” Now that commercial intraoral cameras are increasingly available in practices, this may prove to be of practical clinical importance. The EFF method has been shown to be highly sensitive for occlusal caries in enamel, but sensitivity is poor for occlusal caries in dentin (D3) (Ten Cate et al, 1996). Specificity is poor for occlusal surfaces but high for approximal lesions at both thresholds. The method is reasonably good at detecting approximal lesions in enamel but not lesions in dentin.
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Comments
�����:I really apitecpare your post and you explain each and every point very well.Thanks for sharing this information.And I�ll love to read your next post too. �����:Denika SmallwoodOctober 29, 2013Intraoral cameras first hit the maerkt in the 1980s and since then the technology has evolved tremendously allowing for lower cost and more compact designs. An intraoral camera of 20 years ago would have been quite large and cost in the neighborhood of $35,000. By the early 90s, smaller and more portable designs were emerging and a typical model would sell for around $12,000.Today�s intraoral cameras have been reduced to small hand piece designs that are light weight, portable, and much more affordable than in the past. Exciting new innovations in the intraoral camera space include additional clinical applications such as caries detection, guided caries excavation, and even oral cancer screening. Technology and innovation continues to evolve as brand name companies strive to improve image enhancements, diagnostic capabilities, and also drive down cost. Depending on what you are looking for, a high quality intraoral camera today typically ranges anywhere from $2,000-$6,000. While it�s true that lower-priced cameras are available on the maerkt, which can satisfy the need to simply show a tooth image, the combination of cheap plastics, low quality imagers like CMOS, and low-cost LEDs can only provide average images. Additionally, post service and support is typically not an option. These new lesser known cameras are inexpensive to purchase, but may only last a few months. Most high-quality cameras are built to last and withstand the test of clinical environments. The old adage, �You get what you pay for,� is still very true particularly in this regard. Things like durability, longevity, and peace of mind are gained from reliable manufacturers. Well-known camera manufacturers know that superior image quality is only achieved by the perfect combination of advanced optical systems coupled with high resolution CCD�s, and as long as there is open competition among the top manufacturers, intraoral camera technology will continue to evolve and cost will continue to go down over time. However, it�s important to keep in mind that medical and military grade equipment and components will never follow consumer grade pricing/cost trends. �����:Hello Admin,Interesting Thoughts, I’m almost out of high sohcol and I really want to go to college. Money is an issue so Ive decided to become a dental assistant. It’s only about a three or four month course and after I finish there is job placement help. I would work as a dental assistant and go to college. It’s really hard to find a decent paying job to help me pay for college.Does this sound like a good plan? How much do dental assistants make in Arizona? Thanks for your help!Wishes �����:I have seen plenty of poelpe work in a dental office and go to school. You shouldn’t have any issues. You can expect to make between $9 and $12 per hour to start, but that can easily increase as you add more responsibilities and certifications. http://yowbrolnri.com [url=http://ygkynnxm.com]ygkynnxm[/url] [link=http://fuvkkke.com]fuvkkke[/link]
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Articles for theme “caries”:
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30-03-2010
Alternating current impedance spectroscopy techniqueA more sophisticated approach to lesion detection and measurement is to characterize the electrical properties of the tooth and lesion by using the ACIST, which scans multiple frequencies. The ACIST is new and has been evaluated only to a limited extent on whole carious teeth. However, the results to date are extremely encouraging, indicating 100% sensitivity and specificity at the D1 level and only a marginal decrease in specificity at the D3 level (Longbottom et al, 1996).
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30-03-2010
Electrical conductance (fixed frequency) methodElectrical methods of caries diagnosis are not new. There has been recent revival of interest in fixed frequency electrical devices, which show considerable promise for detection of occlusal and approximal lesions. A device is now commercially available in The Netherlands; similar machines were produced in the United States and in Japan some years ago. The electrical detection methods are seen by many as having the greatest potential for significantly improving diagnostic performance in the years to come.
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30-03-2010
Fiber-optic transillumination methodFiber-optic transillumination is a development of a classic diagnostic aid, advocated some 20 years ago, which has never gained wide acceptance. However, it should be a regularly used tool for diagnosis of caries, in the incisor and premolar regions at least, to supplement clinical examination and bitewing radiographs. Fiber-optic transillumination has enjoyed variable success in studies evaluating its performance, possibly because of failure to appreciate that the technique, like any other, requires an extended learning phase.
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30-03-2010
Computer-aided radiographic methodComputer-aided radiographic methods exploit the measurement potential of computers in assessing and recording lesion size. In the new Trophy 97 system an artificial intelligence software (Logicon Caries Detector) is integrated: Approximal carious lesions are diagnosed and evaluated with the aid of a unique histologic database, allowing graphic visualization of the size and progression of the lesion (Figs 197a to 197c).At both the D1 and D3 thresholds, computer-aided methods offer high levels of sensitivity for approximal lesions.
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30-03-2010
Digital radiographic methodDigital, filmless, techniques for intraoral radiography have been developed for several important reasons:1. Conventional film absorbs only a few percent of the x-rays that reach it, utilizing very little of the radiation to which the patient has been exposed.2. Poor darkroom procedure can lead to both unnecessarily high doses of radiation and loss of diagnostic information.3. Development of films is time consuming, and the developer and fixing solutions are hazardous to the environment.
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