论文部分内容阅读
近来,唇挡作为一种功能性矫治器,在治疗下牙弓拥挤上愈发受到重视。它用于磨牙支抗,破除唇习惯,下牙弓内获得间隙。其原理足唇挡戴入后使得颏部肌肉的力量可传达到下颌磨牙,从而改变其倾斜度,同时舌对牙弓的相对压力引起下颌前牙前倾,尖牙及双尖牙颊侧移动,导致下牙弓长度和宽度的增加,这有助于缓和下牙弓的拥挤。本研究的目的是评价唇挡治疗后下牙弓长度及宽度的变化情况。材料和方法 32例患者,女性19例,男性13例,年龄9～17岁,平均12岁。唇挡用于治疗的全过程(6～33月,平均11月)。与此同时,所有病例上颌运用的矫治器有所不同。治疗开始时取模和摄X线头颅定
Recently, the lip block as a functional appliance has gained increasing attention in the treatment of dental crowding. It is used for molar support, get rid of the habit of lip, access to the gap within the lower arch. The principle of lip into the block so that the power of the chin muscles can be transmitted to the mandibular molars to change its inclination, while the relative pressure of the tongue on the arch caused by anterior mandibular anteversion, canines and bicuspid buccal movement , Resulting in an increase in the length and width of the lower dental arch, which helps to ease the crowding of the lower arch. The purpose of this study was to evaluate the changes in the length and width of the lower dental arch after lipstick treatment. Materials and Methods 32 patients, 19 females, 13 males, aged 9 to 17 years, mean 12 years. Lip block for the entire process of treatment (6 to 33 months, an average of November). In the meantime, the appliances used in the maxillary approach are different in all cases. The beginning of treatment when taken and taken X-ray head fixed