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Abstract

The purpose of this investigation is to grasp the actual condition of malocclusion in Japanese junior high school pupils using the Dental Aesthetic Index (DAI).

A total of 218 junior high school pupils aged 12-13 years were examined according to DAI. About 40% of the subjects had incisal crowding. The percentage of subjects with incisal spacing was 24%, and 71% of them had diastema of 1 mm or more. The percentage of subjects with anterior irregularity on the upper and lower arch was 39% and 33%, respectively. The percentage of subjects with anterior maxillary overjet and mandibular protrusion of 1 mm or more was 85% and 6% respectively. Dislocation by more than a half-cusp in the proximal or distal relationship in the molars was observed in 26% of all subjects. Mean ± SD of DAI score was 25.3 ± 7.3.

Keywords

Aesthetics of dentition Dental Aesthetic Index (DAI)dentofacial anomalies ICSII malocclusion.

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References

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Assessment of Malocclusion of Japanese Junior High School Pupils Aged 12-13 Years in Iwate Prefecture According to the Dental Aesthetic Index (DAI)

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