上海口腔医学

上海口腔医学 ›› 2018, Vol. 27 ›› Issue (3): 318-321.doi: 10.19439/j.sjos.2018.03.022

• 论著 • 上一篇    下一篇

超声肩台预备对全冠边缘密合性影响的随机对照研究

许晓波1，侯永福1，边华琴1，王冕2，黄炎3   

  1. 1.合肥市口腔医院 修复科，
    2.特需科，安徽 合肥 230001；
    3.四川大学口腔疾病研究国家重点实验室，国家口腔疾病临床医学研究中心，四川 成都 610041
  • 收稿日期:2017-11-28 修回日期:2018-02-08 出版日期:2018-07-20 发布日期:2018-07-20
  • 通讯作者: 黄炎,E-mail：yanhuang@scu.edu.cn
  • 作者简介:许晓波（1982-），男，硕士，主治医师，E-mail:xxb2956@hotmail.com

Effect of full crown preparation with ultrasound instrument on marginal adaption: a randomized controlled trial

XU Xiao-bo1, HOU Yong-fu1，BIAN Hua-qin1,WANG Mian2, HUANG Yan3.   

  1. 1.Department of Prosthodontics, Hefei Stomatological Hospital. Hefei 230001, Anhui Province；
    2.Department of VIP, Hefei Stomatological Hospital. Hefei 230001, Anhui Province；
    3. State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University. Chengdu 610041, Sichuan Province, China
  • Received:2017-11-28 Revised:2018-02-08 Online:2018-07-20 Published:2018-07-20

摘要： 目的： 评价在牙体缺损患者中行全冠超声肩台预备后的临床修复效果。方法： 选择32例后牙牙体缺损行全冠修复的患者共计35个单位修复体，随机分为实验组和对照组，实验组常规全冠基牙预备后采用超声对肩台进行预备，对照组采用常规金刚砂车针按照颗粒度逐级预备抛光，2组均取模完成氧化锆全冠修复。比较2组全冠修复体基牙边缘完成线的形态、修复体边缘密合性及6个月后复诊检查全冠邻边缘着色情况。采用SPSS17.0软件包对2组的A级评价结果分别进行组间χ2检验。结果： 2组基牙边缘密合性差异无显著性（P>0.05）；边缘完成线的形态及6个月后复诊检查修复体邻边缘着色情况实验组显著优于对照组（P<0.05）。结论： 牙体缺损全冠修复行超声肩台预备更为合理，能有效减少全冠边缘粘结后着色的发生。

关键词: 超声, 牙体预备, 边缘密合性, 冠边缘

Abstract: PURPOSE: To study the effect of full crown ultrasound preparation on crown margin. METHODS: Thirty-two patients with 35 units of full crown were randomly divided into 2 groups. Teeth in the experimental group were prepared with ultrasound diamond instrument while teeth in the control group were prepared with a high-speed hand piece with regular diamond burs. Teeth in both groups were restored using Zirconia full ceramic crowns. Then all patients were evaluated for morphology of finishing line, marginal adaptation and marginal gingival coloration in the proximal side after 6-month of follow-up, respectively. SPSS17.0 software package was used for statistical analysis. RESULTS: Marginal adaptation did not show significant difference between the experimental and control group (P>0.05). Morphology of finishing line and marginal gingival coloration in the proximal side showed significant difference (P<0.05). CONCLUSIONS: It is recommended to perform tooth preparations with ultrasound diamond instruments, which may produce significantly less marginal gingival coloration in the proximal margin after 6-month of follow-up.

Key words: Ultrasound, Tooth preparation, Marginal adaptation, Crown margin

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