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An evaluation of tooth size discrepancies among different malocclusion groups in North Indians
Vinay Kumar Chugh1, Pradeep Tandon2, Vijay Prakash Sharma3, Amit Nagar2, Rana Pratap Maurya4, Ankita Chugh5
1 Department of Orthodontics and Dentofacial Orthopedics, Vyas Dental College and Hospital, Rajasthan, India
2 Department of Orthodontics and Dentofacial Orthopedics, Faculty of Dental Sciences, KG Medical University, Lucknow, Uttar Pradesh, India
3 Department of Orthodontics and Dentofacial Orthopedics, Chandra Dental College, Barabanki, Uttar Pradesh, India
4 Department of Orthodontics and Dentofacial Orthopedics, BBD University, Lucknow, Uttar Pradesh, India
5 Department of Dentistry, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
Correspondence Address:
Vinay Kumar Chugh
Department of Orthodontics, Vyas Dental College and Hospital, Pali Road, Kudi Haud, Jodhpur - 342 005, Rajasthan
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/2321-3825.150569
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Objective: A study was conducted to evaluate tooth size discrepancies among different malocclusion groups. Materials and Methods: This study consisted of 160 North Indian subjects, 50 normal occlusion group and 110 subjects with varying degree of malocclusion, that is, Angle's Class I (40), Class II Division 1 (40) and Class III (30) malocclusion, respectively. Tooth size measurements were performed on the study models by using a digital Caliper with a liquid crystal display digital output to the nearest 0.01 mm, and various inter-arch ratios were analyzed. Statistical Analysis: One-way analysis of variance was used to analyze the difference in groups followed by Tukey post hoc test. Chi-square test was performed to demonstrate the prevalence of tooth size discrepancies among three malocclusion groups. Results: Significant differences were found for inter-arch ratios between the groups. Conclusions: Anterior, overall, and posterior ratios were higher in Class III followed by Class I and Class II Division 1 malocclusion, respectively. Anterior and overall tooth size discrepancy was found to be 20% and 17.2%, respectively, in the malocclusion sample. |
