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采用头影测量方法评估导萌器对Ⅱ类1分类错(牙合)治疗的效果。研究颅、牙、面复合体的下列内容:上下颌骨、颌骨矢向关系、垂直向变化、上下牙槽、上下切牙关系以及上下磨牙间的矢向关系。 材料和方法 治疗组30例,女13例,男17例,初诊平均年龄9岁,27例为Ⅱ类1分类错袷,3例为Ⅰ类错(牙合),均为深覆(牙合),所有患者接受导萌器治疗平均为26个月,从同期开始治疗的60例中,根据10个月治疗后最佳效果选出30例样本,治疗前后分别摄习惯(牙合)位的头侧位片。 对照组30例样本,女13例,男17例。26例为Ⅱ类1分类错(牙合),4例为Ⅰ类错(牙合),对照组均有深覆(牙合),无正畸治疗史。 指导每个患者睡眠时戴矫治器,白天仅戴4h,分4个阶段,每阶段1h,每小时中,前半小时用重力咬矫治器1min,再轻咬1min,后半小时轻咬矫治器,始终保持上下唇接触。在26个月的观察期中,进行头影测量描图,数字化处理,通过比较、分析,评价实验组和对照组可能出现的差异。
Cephalometric method was used to assess the effect of the introducer on the treatment of class II, Division I malocclusion. Study the following contents of cranial, dental and facial complex: maxilla and mandible, mandibular sagittal direction, vertical change, upper and lower alveolar, upper and lower incisor relationship and sagittal relationship between upper and lower molar. Materials and Methods The treatment group of 30 patients, 13 females, 17 males, the average age of the first diagnosis of 9 years, 27 cases of class Ⅱ 1 misdiagnosis, 3 cases of type I malocclusions, are deep over (occlusion ). All patients received an introducer for an average of 26 months. From the 60 cases treated at the same period, 30 patients were selected according to the best effect after 10 months of treatment. Before and after treatment, Head side tablets. Control group of 30 samples, 13 females, 17 males. Twenty-six patients were classified as type 1 malocclusion and 4 type I malocclusion. The control group had deep occlusion with no history of orthodontic treatment. Each patient was instructed to wear orthodontics during sleep, wearing only during the day 4h, divided into 4 stages, each stage 1h, every hour, half an hour before grazing with the appliance 1min, then bite 1min, half an hour nibble appliance, Always keep upper and lower lip in touch. During the 26-month observation period, cephalometric measurements were taken and digitized. The possible differences between the experimental group and the control group were compared and analyzed.