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目的:观察正畸联合修复治疗下切牙先天缺失的临床效果。方法:选择下切牙先天缺失的安氏Ⅰ类或安氏Ⅱ类错牙合。患者25例男10例,女15例,年龄13—25岁,平均16.9岁,采用正畸排齐整平上下牙弓,扩大下牙弓,开展失牙间隙,协调上下颌矢状向关系,集中间隙进行缺失牙的修复,治疗前后拍摄X线头颅定位侧位片,使用配对t检验,比较治疗前后头影测量指标的变化。结果:矫治结束后,与矫治前比较,差异有统计学差异(P<0.05)。结论:正畸联合修复矫治下切牙先天缺失,协调上下颌矢状向关系和前牙区的Bolton指数比,改善患者侧貌外形,使上下颌的咬合关系恢复稳定。
Objective: To observe the clinical effect of orthodontic combined repair on the congenital absence of incisors. Methods: Select the inferior incisors Class Ⅰ or Class Ⅱ malocclusion. 25 patients were male and 10 males and 15 females, aged from 13 to 25 years (average 16.9 years old). The upper and lower dental arch were orthodontic alignment, the lower dental arch was expanded, the missing teeth gap was coordinated, the sagittal and maxillary mandibular relations were coordinated, Gap missing tooth repair, before and after treatment of X-ray skull positioning lateral radiographs, the use of paired t test, before and after treatment to compare changes in cephalometric measurements. Results: After the treatment, compared with before treatment, the difference was statistically significant (P <0.05). Conclusion: Orthodontics combined with orthodontic treatment of congenital defects under the incisors, coordination of sagittal mandibular and mandibular anterior relationship and Bolton index ratio to improve the profile of the patient profile, so that the occlusal relationship between the upper and lower jaw to restore stability.