University of Khartoum

Bolton’s Analysis in Sudanese Sample

Bolton’s Analysis in Sudanese Sample

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Title: Bolton’s Analysis in Sudanese Sample
Author: Mecheala Abbas Ismail ,Ali
Abstract: Background: Many difficulties encountered during the finishingphase of orthodontic treatment arise due to lack of intermaxillary tooth-size matching. Bolton ratio is one of the most useful calculations for precise orthodontic diagnosis as it shows if there is a correct ratio between dental proportions. Design: This is a clinical, retrospective study. Setting: The study was done among patients attending the orthodontic clinic at the University of Khartoum, Faculty of Dentistry. Objectives: The purpose of this study was to determined (1) establish tooth size ratio in Sudanese sample with normal occlusion (2) the prevalent of tendency for intermaxillary tooth size discrepancies among different malocclusion groups and genders in a group of Sudanese people. Methods: The sample consisted of 110 (49 Male and 61 Female) study models with normal occlusion, Class I, Class II and Class III malocclusions. Tooth size measurements were performed by electronic digital calipers to an accuracy of 0.01 mm. Tooth size ratios were analyzed as described by Bolton. The incidence of mesio-distal tooth size discrepancies in the malocclusion groups was analyzed and compared between males and females. The anterior and over all ratios were compared with the ratios of some previous studies, principally, Bolton’s study. Results: The results of showed no significant difference in the anterior and overall ratios of normal occlusion sample when compared to Bolton’s standards. No significant differences were found in gender for the tooth size discrepancies. ANOVA indicated that, no significant difference was determined in the anterior and overall ratio in different malocclusion groups. Conclusion: it’s suggested that Bolton’s values can be used for Sudanease until a large representive sample is studied.
Description: 78 Pages
URI: http://hdl.handle.net/123456789/7860
Date: 2015-03-31


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