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Subjects comprised 17 patients diagnosed as skeletal mandibular prognathism with deviation. Volume rendering technic facilitated extraction of masseter muscle from the three-dimensional image with CT, and enabled us to perform volume measurement of masseter muscle precisely. There was no significant correlation between three-dimensional ratio of mandibular deviation and volume difference of masseter muscle in deviated and the opposite side (r=-0.35). In addition, volume of masseter muscles in the deviated side might not necessarily be larger than that in the contralateral side. This finding suggests that morphological difference of masseter muscles in between deviated side and the opposite side is not necessarily observed in the jaw deformity patients with facial asymmetry.", "subitem_description_type": "Abstract"}]}, "item_7_full_name_3": {"attribute_name": "\u8457\u8005\u5225\u540d", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "150629", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Wakamatsu, Takanori"}]}, {"nameIdentifiers": [{"nameIdentifier": "150630", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Hanada, Kooji"}]}, {"nameIdentifiers": [{"nameIdentifier": "150631", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Hayashi, Takafumi"}]}, {"nameIdentifiers": [{"nameIdentifier": "150632", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Saito, Isao"}]}]}, "item_7_publisher_7": {"attribute_name": "\u51fa\u7248\u8005", "attribute_value_mlt": [{"subitem_publisher": "\u65b0\u6f5f\u6b6f\u5b66\u4f1a"}]}, 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