华西口腔医学杂志

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方丝弓矫治器配合使用平面导板对牙根吸收影响的临床研究

袁小平;杨四维;黄素华   

  1. 泸州医学院附属口腔医院  正畸科,四川  泸州 646000
  • 收稿日期:2006-08-25 修回日期:2006-08-25 出版日期:2006-08-20 发布日期:2006-08-20
  • 通讯作者: 袁小平,Tel: 0830-3105880
  • 作者简介:袁小平(1962-),女,四川人,副教授,学士
  • 基金资助:

    泸州市重点科学技术基金资助项目(200460)

Clinic Study of Root Resorption Caused by Edgewise Appliance Combined with Flat Bite Plate Treatment

YUAN Xiao-ping, YANG Si-wei, HUANG Su-hua   

  1. Dept. of Orthodontics, Hospital of Stomatology, Luzhou Medical College, Luzhou 646000, China
  • Received:2006-08-25 Revised:2006-08-25 Online:2006-08-20 Published:2006-08-20

摘要:

的  探讨方丝弓矫治器配合使用平面导板正畸治疗对牙根吸收的影响。方法  选择方丝弓矫治器配合平面导板正畸治疗的65例患者为研究对象,分别在戴平面导板前、停戴平面导板时、停戴平面导板6个月时拍摄全口曲面断层片,对下颌中切牙及侧切牙进行根吸收等级测量分析。结果  戴平面导板前、停戴平面导板时、停戴平面导板6个月时牙根吸收等级间的差异均有统计学意义(P<0.05);男性和女性患者在平面导板戴入前后的牙根吸收等级间的差异无统计学意义(P>0.05)。结论  平面导板会造成下前牙牙根的吸收,但根吸收程度轻微。

关键词: 平面导板, 牙根吸收, 全口曲面断层片, 正畸

Abstract:

Objective  To study the root resorption caused by edgewise appliance combined with flat bite plate treatment. Methods  65 patients with edgewise technique and flat bite plate treatment were chosen. All patients were taken panoramic radiograph before flat bite plate treatment, immediately after flat bite plate treatment and 6 months after flat bite plate treatment. Root resorption grade of mandibular permanent incisors were analyzed. Results  There were statistical difference in the root resorption grade of three groups(P<0.05), but there was no statistical difference between male and female(P>0.05). Conclusion  Flat bite plate can cause root resorption of mandibular permanent incisors, but the root resorption is slight.

Key words: flat bite plate, root resorption, panoramic radiograph, orthodontics