ABSTRACT
BACKGROUND: Purpose of this study was to modify the stethoscope which can auscultate the temporomandibular joint (TMJ) sounds more precisely than conventional stethoscope, and fabrication of stethoscope compatible software which analyses the auscultated sound and gives documentary evidence of that analysis in the form of graph. MATERIALS & METHODS: The conventional stethoscope was modified by attaching a custom made soundscope with a recording device which can be placed in external auditory meatus (EAM) for auscultation of TMJ sounds. When this small and smooth end of custom made soundscope of modified stethoscope is placed in EAM & connected with specially developed software it records the TMJ sounds & analyzes them in form of graph. RESULTS: Fabrication of modified stethoscope with software records the auscultated sound as a sound wave in form of graph and analyses this sound wave graph to give graphic evidence of prominent intensity at prominent frequency as spectrum analysis graph, and duration of that sound as a sound length graph. CONCLUSION: The use of modified stethoscope with software increases the accuracy of auscultation of TMJ sounds without any patient's discomfort and helps in diagnosis of TMJ disorders. The modified stethoscope with software for auscultation of TMJ sounds results in more precise auscultation & analysis of TMJ for sounds even of low intensity & frequency. How to cite the article: Dagar SR, Turakiya V, Pakhan AJ, Jaggi N, Kalra A, Vaidya V. Modified stethoscope for auscultation of temporomandibular joint sounds. J Int Oral Health 2014;6(2):40-4.
ABSTRACT
AIMS: To compare and evaluate Candida removing effects of three most commonly available varieties of commercial denture cleansers from heat polymerized acrylic resins. To compare and evaluate Candida lytic effects of denture cleansers. To assess the effect of time on ability of denture cleansers in reducing Candidal biofilm. MATERIALS AND METHODS: A specially designed metal mold was fabricated to obtain wax plates of uniform dimensions which were used to fabricate heat cure acrylic resin plates. A square-shaped window of dimension 15 mm and thickness of 1.5 mm was provided in metal mould to simulate thickness of denture base. All samples used in this study were prepared using this mould. Candida albicans colonies were then cultured on this acrylic resin plates by colonization assay. Yeast removing test for samples was performed using microscope and yeast lytic test was performed using photo colorimeter. RESULTS: Denture cleanser D2 showed the highest Candida removing activity when compared with cleansers D1, D3, and control solution. Denture cleansers D2 showed increased yeast lytic ability when compared with denture cleansers D1, D3, and control solution. More time span shared a definite influence on yeast lytic ability of denture cleansers. CONCLUSIONS: The effect of cleansing agents on removal of colonized yeasts particularly fungal biofilm from acrylic resins was assessed for clinical implications. The observation indicated superior performance of cleanser D2 when compared with D1 and D3 even though they all belong to same chemical group of alkaline peroxide. The increased effectiveness may be due to presence of sodium lauryl sulphate in formula of D2.
ABSTRACT
AIM: The aim of the present study was to determine the changes in masseter muscle thickness due to the state of complete edentulism and the effect of complete denture rehabilitation on the masseter muscle. METHODS: Real-time ultrasonography of the masseter muscle at relaxed and contracted states was carried out for twelve patients (six dentulous and six completely edentulous). Edentulous patients were scanned at the time of denture insertion and at the end of 3 months' follow up. RESULTS: The mean masseter muscle thickness of the edentulous patients was significantly increased after the 3-month follow-up than the thickness at the time of denture insertion, but was significantly lower than that of the dentulous patients of the same age group. CONCLUSION: Within the limitations of this study, it can be concluded that change occurs in the masseter muscle thickness after rehabilitation with complete dentures in the form of increased muscle thickness. However, the thickness of the muscle remains smaller than that of dentate individuals.
