PDF(Pubmed)
Abstract：
BACKGROUND: Mandibular advancement surgery corrects bone bases while establishing patients\' functional and aesthetic rehabilitation. However, little is known about the results of this procedure in the structures that make up the stomatognathic system, as the condyles.
OBJECTIVE: This study aimed to evaluate the structural and positional changes of mandibular condyles in ortho-surgical patients who underwent mandibular advancement surgery.
METHODS: A prospective investigation was conducted with cone-beam computed tomography images. Using Dolphin Imaging® software, seven ortho-surgical patients with Angle Class II malocclusion and mandibular deficiency were evaluated. The images assessed were obtained at pre-surgical phase and after, at least, 1 year of the procedure. To study the structural and positional changes of condyles, linear and angular measurements were obtained, and the right and left sides of patients were compared. Descriptive statistical analysis was performed and, in order to verify possible significant differences, normality tests (Kolmogorov-Smirnov) were applied, followed by a paired t-test to define significance.
RESULTS: For all measures evaluated in this study, no statistically significant differences were found.
CONCLUSIONS: The ortho-surgical procedure performed did not change the structure and position of the condyles of patients who underwent surgical mandibular advancement. Right and left mandibular condyles behaved similarly, suggesting stability and condylar adaptation after surgery.
OBJECTIVE: This study aimed to evaluate the structural and positional changes of mandibular condyles in ortho-surgical patients who underwent mandibular advancement surgery.
METHODS: A prospective investigation was conducted with cone-beam computed tomography images. Using Dolphin Imaging® software, seven ortho-surgical patients with Angle Class II malocclusion and mandibular deficiency were evaluated. The images assessed were obtained at pre-surgical phase and after, at least, 1 year of the procedure. To study the structural and positional changes of condyles, linear and angular measurements were obtained, and the right and left sides of patients were compared. Descriptive statistical analysis was performed and, in order to verify possible significant differences, normality tests (Kolmogorov-Smirnov) were applied, followed by a paired t-test to define significance.
RESULTS: For all measures evaluated in this study, no statistically significant differences were found.
CONCLUSIONS: The ortho-surgical procedure performed did not change the structure and position of the condyles of patients who underwent surgical mandibular advancement. Right and left mandibular condyles behaved similarly, suggesting stability and condylar adaptation after surgery.
摘要：
背景：下颌前移手术在建立患者功能和美学康复的同时矫正了骨基础。然而,对构成口颌系统的结构中这个过程的结果知之甚少，作为髁。
目的：本研究旨在评估接受下颌骨前移手术的骨科患者下颌骨髁突的结构和位置变化。
方法：使用锥形束计算机断层扫描图像进行了前瞻性研究。使用DolphinImaging®软件，评估了7例II类角度错牙合和下颌骨缺损的正外科患者。评估的图像是在手术前和手术后获得的，至少,1年的程序。研究髁突的结构和位置变化,获得线性和角度测量，并对患者的右侧和左侧进行比较。进行描述性统计分析，为了验证可能的重大差异，应用正态检验(Kolmogorov-Smirnov)，然后用配对t检验来定义显著性。
结果：对于本研究中评估的所有指标，差异无统计学意义。
结论：进行的矫形手术没有改变接受下颌骨前移手术的患者髁突的结构和位置。左右下颌髁突表现相似，提示术后髁突的稳定性和适应性。
目的：本研究旨在评估接受下颌骨前移手术的骨科患者下颌骨髁突的结构和位置变化。
方法：使用锥形束计算机断层扫描图像进行了前瞻性研究。使用DolphinImaging®软件，评估了7例II类角度错牙合和下颌骨缺损的正外科患者。评估的图像是在手术前和手术后获得的，至少,1年的程序。研究髁突的结构和位置变化,获得线性和角度测量，并对患者的右侧和左侧进行比较。进行描述性统计分析，为了验证可能的重大差异，应用正态检验(Kolmogorov-Smirnov)，然后用配对t检验来定义显著性。
结果：对于本研究中评估的所有指标，差异无统计学意义。
结论：进行的矫形手术没有改变接受下颌骨前移手术的患者髁突的结构和位置。左右下颌髁突表现相似，提示术后髁突的稳定性和适应性。
