Dental arch shape and size in Malay schoolchildren with Class II malocclusion

The subjects were 50 Malay schoolchildren (Mean age: 15 + 0.7 years) with either Class I (N = 25) or Class II (N = 25) malocclusions. Fourteen homologous landmarks on the upper and lower study models of the subjects were digitised using MorphoStudio software, and the Procrustes means were computed. The mean Class I and Class II configurations were subjected to t-tests and finite element analysis.

Results

Normalised upper arch Class I and Class II configurations were statistically different (p < 0.05), but the lower arches were not. However, normalised Class II linear parameters were statistically smaller in the upper arch and larger in the lower arch. The upper Class II dental arch was narrower by 15 per cent and asymmetric changes in size (11–20 per cent) were localised in the labial and buccal regions of the lower Class II arch.

Conclusions

Size and shape differences between Class I and Class II dental arches can be identified with finite element analysis.

eISSN:: 2207-7480
Language:: English

Publication timeframe:: Volume Open
Journal Subjects:: Medicine, Basic Medical Science, other

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Dental arch shape and size in Malay schoolchildren with Class II malocclusion

Published Online: Dec 13, 2023

Page range: 99 - 103

Received: Jan 01, 2006

Accepted: Jul 01, 2006

DOI: https://doi.org/10.2478/aoj-2006-0009

© 2006 Saeed M. Banabilh et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

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