Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery · 2011
Effect of bone quality and position of the inferior alveolar nerve canal in continuous, long-term, neurosensory disturbance after sagittal split ramus osteotomy.
Сравнительное исследованиеСтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Yoshioka Izumi, Tanaka Tatsurou, Habu Manabu, Oda Masafumi, Kodama Masaaki, Kito Shinji, Seta Yuji, Tominaga Kazuhiro, Sakoda Sumio, Morimoto Yasuhiro
Аннотация
OBJECTIVES: To examine the relationship between the anatomical position and the bone quality of the inferior alveolar nerve (IFAN) canal and long-term neurosensory disturbance (NSD) of the IFAN after a sagittal split ramus osteotomy (SSRO).
MATERIAL AND METHODS: CT images were taken of patients with mandibular prognathism. The location of the IFAN and the bone density around the IFAN were measured on CT images. Whether NSD at 6 months and 1 year after SSRO was related to the position and bone quality of the IFAN canal was analyzed.
RESULTS: Significant correlations were found between the anatomical position and the bone quality of the IFAN canal and the period to the resolution of NSD of the IFAN from 3 months to 1 year after SSRO. If the HU values around the IFAN were greater than 300 HU and/or the distance from the buccal aspect of the IFAN canal to the outer buccal cortical margin was less than 6 mm, NSD of the IFAN at 1 year after SSRO was significantly increased.
CONCLUSION: It is important to pay particular attention to the anatomical position of the IFAN and the bone quality around the IFAN to predict long-term NSD of the IFAN after SSRO.
MATERIAL AND METHODS: CT images were taken of patients with mandibular prognathism. The location of the IFAN and the bone density around the IFAN were measured on CT images. Whether NSD at 6 months and 1 year after SSRO was related to the position and bone quality of the IFAN canal was analyzed.
RESULTS: Significant correlations were found between the anatomical position and the bone quality of the IFAN canal and the period to the resolution of NSD of the IFAN from 3 months to 1 year after SSRO. If the HU values around the IFAN were greater than 300 HU and/or the distance from the buccal aspect of the IFAN canal to the outer buccal cortical margin was less than 6 mm, NSD of the IFAN at 1 year after SSRO was significantly increased.
CONCLUSION: It is important to pay particular attention to the anatomical position of the IFAN and the bone quality around the IFAN to predict long-term NSD of the IFAN after SSRO.
Предметные рубрики MeSH
AdolescentAdultBone DensityCephalometryCranial Nerve DiseasesCross-Sectional StudiesFemaleFollow-Up StudiesHumansMaleMandibleMandibular NerveMiddle AgedOsteotomy, Sagittal Split RamusPrognathismSensory ThresholdsSex FactorsSomatosensory DisordersThermosensingTomography, X-Ray ComputedTouchYoung Adult