Aim: To determine the frequency of the location of vibrating line in relation to palatine fovea in Class I, II and III soft palate types among patients at Islamic International Dental College, Islamabad. Study design: A cross-sectional observational study Place and duration: Prosthodontic Dept of Islamic International Dental College, Riphah International University, from 2nd October 2021 till 2nd January 2022. Methodology: A total of 200 subjects were selected and clinically examined for various locations of vibrating line with respect to palatine fovea in soft palate types (I, II, III). Phonation method ‘Ah’ was used to locate vibrating line location. Results: The vibrating line location was anterior to palatine fovea in 72.7%, 64.1%, 50% of subjects with Class I, II, III soft palate. 16.5%, 25.6%, 22.7% subjects had vibrating line locating at fovea palatine in Class I, II, III soft palate types. Least observed location was the posterior location of vibrating line; 10.8%,10.3% 27.3% in all soft palate types (class I, II, III). In-significant association with age, gender and soft palate types was seen with location of vibrating line. Conclusion: The vibrating line was located predominantly anterior to palatine fovea in all three soft palate types. Keywords: Dentures, Post dam area, Palatine Fovea, Retention, Soft Palate Contours, Vibrating line.
Aim: To find out the prevalence and patterns of tori in edentulous patients and determine their association with gender and age. Study design: A cross-sectional observational study. Place and duration: Prosthodontic Department of Islamic International Dental College, Islamabad from 1st September 2021 to 1st December 2021. Methodology: A total of 165 edentulous patients of both genders were selected using non-probability purposive sampling. After collecting demographic data, intra-oral examination was carried out. Maxillary and mandibular stone casts were made after taking alginate impressions. Sharp graphite pencil was used to mark torus mandibularis and torus palatinus and the stone casts were carefully analyzed for size, shape and location of tori. Results: Total prevalence of tori in present study was 11.5%. 7.7% males and 14.9% female patients reported having tori. No gender association with tori existence found; p>0.05. Maximum number of tori reported in age group 71-80 years (21.4%). Chi square test showed association of tori presence with age; p <0.05. The flat and spindle shaped tori were (1.2%) whereas lobular and nodular shaped accounted for 1(0.6%) torus palatinus. The prevalence of small sized tori was mostly reported (7.9%). Unilateral single tori were frequently found (6.7%). Conclusion: The prevalence of tori occurrence in edentulous patients is low. There was no significant difference in the prevalence of tori among male and female patients however tori exitance increases with increasing age. Key words: Torus Palatinus, Torus Mandibularis, frequency, edentulous, prevalence.
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