The purpose of this study was to evaluate the relationship between frontal craniofacial pattern and occlusal function in the unilateral cleft lip and palate patients before bone grafting. The relationship between frontal facial morphology and bite force was investigated by the handy type bite force meter and postero−anterior cephalograms. The relationships between the ratio in bite force of the cleft and the non−cleft sides and the ratios in the maxillary and mandibular bone widths, heights and angulations of the cleft and the non− cleft sides, and the mandibular deviation were analyzed. １．The maximum bite force of the cleft side was significantly smaller than that of the non−cleft side. ２．The mandibular lateral deviation showed statistically significant correlations to the ratios of the mandibular bone width, and the maxillary, the occlusal, and the mandibular frontal plane angles. ３．The ratios of the maximum bite force between the cleft and the non−cleft sides showed statistically significant correlations to the ratio of the maxillary bone width between the cleft and the non−cleft sides. These results suggested that the difference of bite force between the cleft and the non− cleft sides related the difference of frontal craniofacial morphology in the unilateral cleft lip and palate patients before bone grafting.
片側性唇顎口蓋裂患者の咬合力と正面顎顔面形態の関連性について
matsumoto_shigaku_38-1-03.pdf
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