Relationship between chin deviation and the position and morphology of the mandible in individuals with a unilateral cleft lip and palate
김경선, 손우성, 박수병, 김성식, 김용일,
소속 상세정보
김경선 ( Kim Kyung-Seon ) - Pusan National University School of Dentistry Department of Orthodontics
손우성 ( Son Woo-Sung ) - Pusan National University School of Dentistry Department of Orthodontics
박수병 ( Park Soo-Byung ) - Pusan National University School of Dentistry Department of Orthodontics
김성식 ( Kim Seong-Sik ) - Pusan National University School of Dentistry Department of Orthodontics
김용일 ( Kim Yong-Il ) - Pusan National University School of Dentistry Department of Orthodontics
KMID : 0361920130430040168
Abstract
Objective: In this study, we aimed to examine the relationship between chin deviation and the positional and morphological features of the mandible and to determine the factors that contributed to chin deviation in individuals with a unilateral cleft lip and palate (UCLP). Methods: Cone-beam computed tomography (CBCT) images of 28 adults with UCLP were analyzed in this study. Segmented three-dimensional temporomandibular fossa and mandible images were reconstructed, and angular, linear, and volumetric parameters were measured. Results: For all 28 individuals, the chin was found to deviate to the cleft side by 1.59 mm. Moreover, among these 28 individuals, only 7 showed distinct (more than 4 mm) chin deviation, which was toward the cleft side. Compared to the non-cleft side, the mandibular body length, frontal ramal incli nation, and vertical position of the condyle were lower and inclination of the temporomandibular fossa was steeper on the cleft side. Furthermore, the dif ferences in inclination of the temporomandibular fossa, mandibular body length, ramus length, and condylar volume ratio (non-deviated/deviated) were po sitively correlated with chin deviation. Conclusions: UCLP individuals show mild chin deviation to the cleft side. Statistical differences were noted in the parameters that represented positional and morphological asymmetries of the mandible and temporomandibular fossa; however, these differences were too small to indicate clinical significance.
키워드
Computed tomography; Cleft lip and palate; Asymmetry
원문 및 링크아웃 정보
등재저널 정보