摘要
目的分析改良U型分牙簧对牙列拥挤及上颌前突正畸患者的临床治疗效果。方法将前牙拥挤及上颌前突的患者90例随机分为MBT矫治技术组(A组)、OPA-K矫治技术组(B组)及改良U型分牙簧配合改良前庭盾口外支抗组(C组),每组30例,分析3组的治疗效果。结果 A组总有效率为66.7%,B组为72.3%,C组为93.3%,C组疗效最好(P<0.05);A组治疗时间为(39.4±4.2)d,B组为(42.1±3.9)d,C组为(30.9±4.5)d,C组治疗时间最短(P<0.05);A组视觉模拟评分法评分为(7.62±1.66)分,B组为(5.89±1.53)分,C组为(3.52±1.02)分,C组评分最低(P<0.05)。结论改良U型分牙簧为牙列拥挤及上颌前突正畸患者提供了一种痛苦小、疗效好、治疗时间较短的新型矫治技术,值得推广应用。
Objective To analyze the clinical effect of modified U-shaped teeth spring for orthodontic patients with crowded dentition and maxillary prognathism. Methods Ninety patients with crowded dentition and upper maxillary prognathism were randomly divided into group A,group B and group C,with 30 cases in each group. The patients in group A were treated with the technology of MBT correction,in group B were treated with the technology of OPA-K correction, and in group C were treated with modified U-shaped teeth spring combined with modified vestibular shield extra-oral anchorage. The clinical effects of three groups were analyzed. Results The total effective rate of group A was 66.7% ,of group B was 72.3% ,and of group C was 93.3%, group C achieved the best clinical effects （P 〈 0.05）. The treatment duration of group A was （39.4 ± 4.2） days, of group B was （42.1± 3.9） days, and of group C was （ 30.9 ± 4.5 ） days, group C achieved the shortest treatment duration （ P 〈 0.05 ）. The visual analogue score （VAS） score of group A was （7.62 ± 1.66 ）, of group B was （5.89± 1.53）, and of group C was （3.52 ± 1.02）, group C gained the lowest VAS score （ P 〈 0.05 ）. Conclusion Modified U-shaped teeth spring provides a new correction for orthodontic patients with crowded dentition and maxillary prognathism ,with the advantages of less pains, better clinical effects and shorter treatment duration. It is worth popularizing.
出处
《广西医学》
CAS
2015年第3期335-337,共3页
Guangxi Medical Journal
基金
广西医药卫生科研课题(Z2012386)
关键词
牙列拥挤
改良U型分牙簧
正畸
Crowded dentition
Modified U-shaped teeth spring
Orthodontics
