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Year : 2015  |  Volume : 3  |  Issue : 2  |  Page : 92-95

Comparison of tooth size discrepancy in Angle's class I and class II malocclusion in Rajasthani population

1 Department of Orthodontics and Dentofacial Orthopedics, Rajasthan Dental College and Hospital, Jaipur, Rajasthan, India
2 Department of Pedodontics, Rajasthan Dental College and Hospital, Jaipur, Rajasthan, India

Correspondence Address:
Chiranjeev Saini
Plot No. 7/A, Sector-12, Hanumangarh Jn. - 335 512, Rajasthan
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2321-3825.146364

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Aim: The purpose of this study was to compare the tooth size discrepancy according to Bolton ratios and norms between class I and class II malocclusion groups in Rajasthani population. Materials and Methods: A quantitative study was carried out at all dental colleges of Rajasthani. Cross-sectional data were gathered from the study casts of patients undergoing orthodontic treatment at all dental colleges of Rajasthan. 105 out of 150 study casts were filtered based upon the inclusion and exclusion criteria. The mesiodistal widths of all maxillary and mandibular teeth from right first molar to left first molar were calibrated with the use of a manual caliper. The readings were then used to compute the anterior and total Bolton ratios. Results: Significantly higher mean anterior tooth ratios were found for class II (P < 0.01) patients. All other ratios were within close range of Bolton's norms. Conclusion: Class II patients showed a tendency toward higher mesiodistal widths of teeth in the mandibular anterior region

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