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[A study of consistency of occlusal type with skeletal pattern and integumental profile]
Xu Zheng1, Jiuxiang Lin, Yiyue Xie
1Department of Stomatology, Peking University Third Hospital, Beijing 100083, China.
Objective:
To understand the consistency of occlusal type with skeletal pattern and integumental profile in each malocclusion group extensively, and to make an inquiry into the mechanism of malocclusion.
Methods:
440 patients of three Angle's malocclusions and 60 normal subjects aged from 12-15 years were chosen randomly. The distributions of probability of skeletal pattern and soft-tissue facial type were calculated in each malocclusion group contrasted to normal group, the percentages of common ranges between each pair of groups among Angle's three malocclusions and normal group were calculated too.
Results:
The inconsistency of occlusal type with skeletal pattern and integumental profile was most common in class II malocclusion, least common in class, and class III was in between; There were no clear boundaries between any pairs of groups, and common ranges were quite wide.
Conclusion:
To give reasonable diagnosis and treatment plan, and to get best results from treatment, it's necessary to differentiate occlusal type, skeletal pattern and soft-tissue facial pattern. Majority of malocclusion patients have no obvious anomaly on skeletal pattern, which results from ill-match of skeletal components, and the ability of compensating is stronger vertical than sagittal.