前牙即刻再植正畸固定和外科牙弓夹板固定的比较研究

The comparative research of orthodontic fixation and surgery arch bar splint fixation after dislocation of the anterior teeth

目的比较正畸固定和外科牙弓夹板固定在恒前牙外伤脱位治疗中的临床疗效。方法恒前牙外伤脱位患者31例,采用釉质粘合剂辅助结扎弓丝的正畸直丝弓矫治器固定16例,采用牙弓夹板固定15例,对两种固定方法的临床疗效进行比较。结果采用釉质粘合剂辅助结扎弓丝的直丝弓矫治器固定的16例患者中,固定的总牙数是31颗,成功30颗,失败1颗;采用金属牙弓夹板固定的15例患者中,固定的总牙数是23颗,成功17颗,失败6颗。对两种固定方法的成功率进行比较发现:两者间存在显著性差异(P<0.01)。结论釉质粘合剂辅助结扎弓丝的直丝弓矫治器固定恒前牙外伤脱位的临床疗效可靠,操作简易,值得临床推广应用。

Objective To compare the clinical curative effect of the dislocated permanent anterior teeth by the straight-wire appliance with enamel bonding agent and surgery arch bar splint fixation. Methods There were 31 patients that the permanent anterior teeth dislocated because of trauma. Used the straight-wire appliance with enamel bonding agent correcting fixed 16 patients, used the tooth bow clamping plank fixed 15 examples. Carried on the comparison to two fixed methods effects. Results Used the straight - wire correcting with enamel bonding agent fixed 31 teeth of 16 patients, succeed 30 examples, were defeated 1 examples. Used in the metal tooth bow clamping plank fixed 23 teeth of patients, were defeated examples. To compare two fixed methods success ratios, had significance difference,P〈0.01. Conclusions The effect of correcting fixed the dislocated permanent anterior teeth with straight-wire appliance with enamel bonding agent is reliable, simple. Also in the enormous degree reduced patient＇s pain. It is worth promoting the appliance.