Uçüncü N, Uçem T T, Yüksel S
Department of Orthodontics, Gazi University, Ankara, Turkey.
Eur J Orthod. 2000 Feb;22(1):43-51. doi: 10.1093/ejo/22.1.43.
The purpose of this retrospective investigation was to compare cephalometrically the treatment effects of chincap and maxillary protraction appliances in subjects with a Class III skeletal malocclusion with a combination of an underdeveloped maxilla and prominent mandible. Twenty-four patients were divided into two groups according to the treatment type; the chincap group (mean age 11.03 years, n = 12) and the Delaire type maxillary protraction appliance group (mean age 10.72 years, n = 12). In both groups, a significant increase in ANB, molar relationship, and overjet showed the effect of the appliances in the treatment of Class III malocclusions. In comparing the two groups, the maxilla was displaced more anteriorly and the molar relationship correction was greater in the maxillary protraction appliance group (P < 0.05). Angular and dimensional parameters for lower incisor/NB and nasolabial angle showed significant differences between the groups (P < 0.05).
这项回顾性研究的目的是通过头影测量比较颏兜和上颌前牵引矫治器对伴有上颌发育不足和下颌前突的III类骨性错牙合患者的治疗效果。24例患者根据治疗类型分为两组：颏兜组（平均年龄11.03岁，n = 12）和Delaire式上颌前牵引矫治器组（平均年龄10.72岁，n = 12）。两组中，ANB、磨牙关系和覆盖的显著增加表明矫治器对III类错牙合的治疗效果。比较两组时，上颌前牵引矫治器组上颌向前移位更多，磨牙关系的矫正更大（P < 0.05）。两组在下切牙/NB角和鼻唇角的角度及线性参数上存在显著差异（P < 0.05）。
