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目的观察唇弓+带圈水平曲牵引矫治唇侧埋伏阻生尖牙的临床效果。方法对13例上颌尖牙骨内埋伏阻生的正畸患者进行翻瓣导萌后使用唇弓+带圈水平曲以轻力牵引至龈外,然后进行方丝弓矫治器排列牙齿入牙弓。结果13例埋伏阻生尖牙均被导萌牵引排列入正常牙弓内,矫治后原埋伏阻生尖牙的牙髓活力和牙周组织正常。X线片显示无明显牙根吸收等病理现象。结论使用唇弓+带圈水平曲对上颌骨唇侧埋伏阻生尖牙的牵引矫治合理实用,可以获得较满意的临床效果。
Objective To observe the clinical effect of lip-arch + bandring horizontal curl traction on the labial impacted canines. Methods Thirteen cases of orthodontic patients with maxillary canine impacted in the orthodontic tooth were transplanted into the gingival arch with light lip force with the use of the lip-arch + . Results Thirteen cases of impacted canines were induced by traction and inserted into the normal dental arch. The dental pulp vitality and periodontal tissues of the original impacted canines were normal after correction. X-ray film showed no obvious pathological root resorption. Conclusion It is reasonable and practical to use the lip-brim + banding horizontal curve to draw and correct the impacted canines on the labium of the maxillary labium. The satisfactory clinical results can be obtained.