华西口腔医学杂志

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下颌后牙区软组织水平种植体边缘骨吸收相关因素的临床研究

黄冉冉 孙旭 尚针针 张黎星   

  1. 口腔疾病研究国家重点实验室 华西口腔医院修复科(四川大学),成都 610041
  • 收稿日期:2015-10-15 修回日期:2016-01-02 出版日期:2016-04-01 发布日期:2016-04-01
  • 通讯作者: 梁星,教授,博士,E-mail:xingliangdent@vip.163.com
  • 作者简介:黄冉冉,博士,E-mail:huangrr8@gmail.com
  • 基金资助:

    四川省科技厅科研支撑项目(2013SZ0070)

Marginal bone loss around tissue level implants in the posterior part of the mandible

Huang Ranran, Sun Xu, Shang Zhenzhen, Zhang Li, Liang Xing.   

  1. State Key Laboratory of Oral Diseases, Dept. of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
  • Received:2015-10-15 Revised:2016-01-02 Online:2016-04-01 Published:2016-04-01
  • Contact: Liang Xing, E-mail: xingliangdent@vip.163.com.
  • Supported by:

    Science and Technology Supporting Program from Sichuan Provincial Technology Department (2013SZ0070).

摘要:

目的 研究下颌后牙软组织水平种植体边缘骨吸收的影响因素,为减少种植体边缘骨吸收量,提高种植体存留率提供理论依据。方法  选择76例患者行下颌后牙区软组织水平种植,共植入种植体116枚。记录患者的一般情况、种植体特征、种植体植入部位特征及修复体特征,在术后即刻、种植后3个月、修复后3个月、修复后12个月行锥形束CT检查,利用One Vlume Viewer软件测量并计算边缘骨吸收量,采用SPSS 20.0软件进行统计学分析。结果  吸烟、骨密质厚度、种植体长轴与牙冠长轴夹角、种植体局部卫生情况在各组间的差异有统计学意义(P<0.05),患者性别、年龄、种植体长度、种植体直径、种植体系统、种植体边缘骨高度和修复体类型在各组间的差异无统计学意义(P>0.05)。结论  吸烟、骨密质较厚、种植体长轴与牙冠长轴夹角较大、种植体局部卫生差是引起种植体边缘骨吸收的危险因素,其中,局部卫生差与种植体边缘骨吸收的相关性较强。

关键词: 下颌后牙区种植, 软组织种植体, 边缘骨吸收, 锥形束CT

Abstract:

Objective  To clarify the related factors of marginal bone loss (MBL) around tissue level implants in the posterior part of the mandible. Methods A total of 116 tissue level implants were implanted in the mandibular posterior region of  76  patients. Patients’ information, including general characteristics, implant characteristics, implant site characteristics, and prosthesis characteristics, was recorded. Their cone beam computed tomography data were measured immediately after implant placement, 3 months later, and 3 and 12 months after prosthesis loading. The measurement of MBL was conducted by One Volume Viewer software. SPSS 20.0 was used for statistic analysis. Results Smoking, cortical bone thickness (CBT), collum angle (CA), and implant local sanitation showed significant differences with body mass loss (P<0.05). No significant differences were found among sex, age, length of implant, diameter of implants, implant systems, bone height, prosthesis type, and MBL (P>0.05). Conclusion The risk factors that caused MBL were smoking, thicker CBT, larger CA, and poor implant local sanitation. Among them, poor implant local sanitation had the highest correlation with MBL.

Key words: implantation in posterior mandible, tissue level implant, marginal bone loss, cone beam computed tomography