摘要
28例前牙反牙合经FrankelⅢ(FRⅢ)矫正器治疗前后的X线头颅侧位定片进行X线头影测量,以探讨FrankelⅢ矫正器的作用机理及疗效。结果表明:(1)FRⅢ矫正器抑制下颌向前生长,刺激上颌牙槽骨生长,使骨骼型由安氏Ⅲ类变为安氏Ⅰ类;(2)上前牙的唇倾及下前牙的舌倾使得颌间关系及切牙关系恢复正常;(3)软组织的一些改变比相应硬组织的改变显著。经FrankleⅢ矫正器治疗不仅获得正常的颌关系及咬牙合功能,而且满足了患者对美的要求。
Cephalometric analysis of the lateral cephalogram of 28 cases with skeletal anterior cross-bite was conducted by using Frankel Ⅲ appliance before and after the treatment, to study the meochanism and effect of Frankel Ⅲ appliance. The results showed: (1)Frankel Ⅲ appliance restrained the growth of mandible; stimulated the growth of maxillary alveolar bone, and the skeletal classification changed from Angle Class Ⅲ to Angle Class Ⅰ.(2) with the labial inclination of the upper incisors and the lower incisors striking obliquely against the lingual surfaces of the upper teeth, the relationship of jaw and incisor became normal. (3) the change of soft tissue was more significant than hard tissue. After treated with Frankel Ⅲ appliance, the patient not only got a healthy jaw relationship and masticational function, but also satisfied his desire of aesthetics .
出处
《暨南大学学报(自然科学与医学版)》
CAS
CSCD
1998年第4期97-100,共4页
Journal of Jinan University(Natural Science & Medicine Edition)