Introduction: Various forms of malocclusion is most common dentofacial abnormality found in human population. People seek tteatment for such abnormalities based on the severity. The objective of this research is to evaluate Pattern of Malocclusion in Patients Seeking Orthodontic Treatment at Medical Colleges and Teaching Hospitals of Chitwan, Nepal. Materials & Method: Two hundred thirty nine pre-operative study casts of orthodontic patients aged from 12-50 years selected from 550 patient’s records of departments of orthodontics of Chitwan Medical Colleges and Colleges of Medical Sciences, Bharatpur of Chitwan. Standard protocol of Angle’s classification of malocclusion was used to classify malocclusion and its attributes were recorded. Pearson’s Chi square test was performed to justify the result. Result: The prevalence of malocclusion were 61.92% , 33.47% and 4.60% for Angle’s class I, Angle’s class II and Angle’s class III malocclusion respectively. Among various attributes of malocclusion, deep bite had highest frequency with 67.36% followed by overjet 58.99%, crowding 53.13% and spacing 35.98%, Anterior cross bite 11.71% reverse overjet 4.6%, posterior cross bite 1.2% and scissor bite 0.041%. Pearson Chi square test showed no relation among these attributes and sex and age at p < .05. Conclusion: Angle’s class I malocclusion is most prevalent followed by Angle’s class II and Angle’s class III.
Introduction: Mini-implant has been in use as temporary anchorage device in orthodontics. Various factors like length, type of osseointegration, magnitude and direction of force, insertion angle of the mini-implant affect the stress development at the bone and implant interface. Development of undesirable stress at the bone-implant interface can lead to bone defect and failure of the implant. Various opinions regarding the need of osseointegration have been reported. Objective:To study the effect of complete and partial osseointegration on Von Mises stress distribution at the bone-implant interface. Materials & Method:Finite element model of 9mm × 1.5mm mini-implant and bone segment of 1.5mm were constructed to simulate the biomechanical response of the bone to the mini-implant by using CATIA V5-6R 2013 software. Stress developed on implant and bone were analyzed by using ANSYS: 13 2013 version software for both complete and partial level of osseointegration. Conclusion:In partial osseointegration, stress developed was higher but well below the yield strength of respected continuum.So the partial osseointegration is a good compromise between the necessity of reducing mobility of implant and the necessity for easier screw removal.
Introduction: Oral health is an inherent part of the overall individual’s general health. Good oral hygiene practices are widely considered essential in maintaining good oral health and flossing has long been considered an indispensable part of an effective oral hygiene routine. This study aimed to find out the mean attitude score regarding dental floss among dentists. Methods: A descriptive cross-sectional study was conducted among 142 dentists practicing in a district of Nepal from February 2020 to April 2020. Convenience sampling was performed to reach the sample size of 142. Data was collected through both self-administered and online questionnaires sent through google forms after ethical approval from the Institutional Review Committee (Reference number: IRC/076/077-131). Data analysis was done by using Statistical Package for Social Sciences version 20.0 software. Point estimate at 95% confidence interval was calculated along with mean, standard deviation, frequency, and proportion. Results: The mean attitude score regarding dental floss among dentists was 53.77±4.01 (53.11-54.42 at 95% Confidence Interval). Positive attitude was observed in the majority of dentists 120 (84.5%). Twenty-two (15.5%) were found to have a neutral attitude and none of them possessed a negative attitude towards dental floss similar to other studies. Conclusions: Based on results of this study, the mean attitude score regarding dental floss among dentists in our study is similar to the findings of other studies. The majority of dentists were found to have a positive attitude towards dental floss.
Impacted tooth is frequently encountered in dental practice. But the impacted tooth associated with supernumerary tooth and dentigerous cyst in anterior region is very rare case. The present case reports the successful management of impacted right central incisor with multiple odontome and dentigerous cyst by surgical intervention and orthodontic extrusion. Close eruption technique was applied after enucleation of cyst and extraction of odontome. Thirty grams traction force was applied after bonding in the labial surface of impacted tooth. Subsequently fixed orthodontic technique was applied to get impacted central incisor into occlusion.
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