Bolton Ratios in Crowded and Non-Crowded Dentition among Solapur Population: An In-vitro Study
Journal Title: Journal of Medical Science And clinical Research - Year 2018, Vol 6, Issue 3
Abstract
Introduction: It has been seen that specific dimensional relationship must exist between the maxillary and mandibular teeth to ensure proper inter digitation, overbite and overjet. The purpose of this study is to compare bolton ratios in crowded and non-crowded dentition. Materials and Methods: Out of the 60 cases, 30 were non-crowded cases and the rest 30 were crowded cases. Carey’s Arch perimeter analysis was done on the patient casts. The arch length anterior to the first permanent molar was measured using a soft brass wire. The mesiodistal width of the teeth anterior to the first molars (second premolar to second premolar) was measured and summed up. The discrepancy referred to the difference between arch length and tooth material. Presence of difference (AL-TTM) greater than 2mm in both arches was considered as a non-crowded case and difference (AL-TTM) less than 2mm was considered as a crowded case. Mesiodistal width of each tooth was measured using digital Vernier caliper. Tooth width ratios were calculated in the two groups using formulas proposed by Bolton. Results: No significant difference was found in the anterior and overall ratio between crowded and noncrowded dentitions between both males and females. Conclusion: This study concluded that not much differences was found between Bolton’s ratio and the ratios for the Solapur population. Crowded or non-crowded dentition did not show any difference in the ratio while the crowded dentition showed larger teeth in the mesio-distal dimension. When males & females were compared, the ratio did not vary considerably.
Authors and Affiliations
Dr Sukumar Vitthal Lipare
Keywords
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