| Summary: | 碩士 === 國立臺灣大學 === 牙醫學系 === 86 === The aim of this study was to evalute the distribution of the
craniofacial asymmetry and discuss the asymmetry areas of
mandible. We collected the pre-treatment serial CT images for 3D
image reconstruction. The research included hemifacial
microsomia and cleft lip and palata patients. The formerhad 13
children,7 boys and 6 girls with average age 5.5 years; the
latter had 13 children,8 boys and 5 girls with average age 5
years. After determining 24 landmarks and approaching 46
measurements, the Chi-Square and pair t test displayed the
following results:(1) frontally, hemifacial microsomia group
hadsignificant asymmetric deviation in posterior cranial
triangle related to mid-sagittal plane (2)vertically, condylar
discrepancy between left and right sideswas not significant as
expected and coronoid process discrepancy was not a good
indicator in diagnosis of mandible asymmetry (3)hemifacial
microsomia group hadvertical,sagittal and transverse discrepancy
(4) cleft lip and palate group hadvertical discrepancy
especially in ramus height (5) vertical discrepancy can
besensitive factor in diagnosis of mandible asymmetry.
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