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Year : 2014  |  Volume : 2  |  Issue : 1  |  Page : 4-10

Tooth size and arch parameter discrepancies among different malocclusions in young permanent dentition of 13-15-year-old school children of Nalgonda District-South Indian population

1 Department of orthodontics and dentofacial orthopeadics, Drs. Sudha and Nageswara Rao Pinnamineni Siddhartha Institute of Dental Sciences, Gunnavaram, Vijayawada, India
2 Department of orthodontics and dentofacial orthopeadics, KM Shah Dental College and Hospital, Sumandeep Vidyapeeth University, Piparia, Wagodia, Vadodara, Gujarat, India
3 Department of orthodontics and dentofacial orthopeadics, Army College of Dental Sciences, Secunderabad, Andhra Pradesh, India

Correspondence Address:
Mohammadi Begum
Drs. Sudha and Nageswara Rao Pinnamineni Siddhartha Institute of Dental Sciences, Gunnavaram, Vijayawada - 521 286, Andhra Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2321-3825.125901

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Purpose: The objective of this study was to evaluate the presence of tooth material and arch length discrepancies of children in Nalgonda district, Andhra Pradesh, South India, in an age range of 13-15 years. Materials and Methods: Children aged 13-15 years who fulfilled the inclusion and exclusion criteria were selected for a sample of 200 children. A digital caliper was used for measuring the tooth and arch widths. Results: Significant tooth size differences were found between males and females and among different malocclusion groups. In the Class I malocclusion group, the mandibular canines were significantly smaller in females than that in males (P < 0.01). Class II div 1 group showed relatively narrower intercanine width compared with other groups. Class III occlusal pattern showed relatively larger sized teeth compared with the other occlusal groups. There was no statistically significant difference in the anterior and overall ratio in all the malocclusion groups. Conclusion: The following conclusions are drawn from the study:
  • The maxillary central and lateral incisors presented significant variability.
  • No significant sex differences were shown for Bolton's overall ratio and anterior ratio.
  • Treatment planning should always take into consideration the discrepancy of the tooth size ratios and should include compensating esthetic procedures such as composite bonding, prosthetic reconstruction or reproximation.

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