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中华口腔医学研究杂志(电子版) ›› 2012, Vol. 6 ›› Issue (04) : 366 -370. doi: 10.3877/cma.j.issn.1674-1366.2012.04.012

临床研究

不同冠根比对种植单冠修复体临床效果的影响
邹康元1,(), 李树荣2, 张佩芬1, 符镇南1, 陈觉清1   
  1. 1.528031 佛山市禅城区向阳医院·禅城区口腔医院修复科
    2.中山大学附属第一医院放射科
  • 收稿日期:2012-04-12 出版日期:2012-08-01
  • 通信作者: 邹康元

Influence of the crown-to-implant ratio on the clinical performance of single-tooth implants in the posterior region

Kang-yuan ZOU1,(), Shu-rong LI1, Pei-fen ZHANG1, Zhen-nan FU1, Jue-qing CHEN1   

  1. 1.Department of Prosthodontics, Foshan Xiangyang Hospital Chancheng Hospital of Stomatology, Foshan 528031, China
  • Received:2012-04-12 Published:2012-08-01
  • Corresponding author: Kang-yuan ZOU
引用本文:

邹康元, 李树荣, 张佩芬, 符镇南, 陈觉清. 不同冠根比对种植单冠修复体临床效果的影响[J/OL]. 中华口腔医学研究杂志(电子版), 2012, 6(04): 366-370.

Kang-yuan ZOU, Shu-rong LI, Pei-fen ZHANG, Zhen-nan FU, Jue-qing CHEN. Influence of the crown-to-implant ratio on the clinical performance of single-tooth implants in the posterior region[J/OL]. Chinese Journal of Stomatological Research(Electronic Edition), 2012, 6(04): 366-370.

目的

探讨种植牙冠根比对种植体生存率、种植体周围骨组织吸收的影响。

方法

选择2008 年1月至2009 年2月间52 例种植修复的患者,均部分或个别牙缺失,采用延期种植技术,共植入83 颗ITI 种植体。 在种植体完成冠修复时和功能负载3 年后分别对种植牙采用标准化X 线投照技术,拍摄种植体数字化牙片。 利用CliniView 6.1.3 软件,分别测量计算出种植牙的冠根比与种植体周围骨垂直高度丧失的数值。

结果

观察期间3 例患者4 颗种植体失败,种植体的3 年累积生存率为95.2%;解剖冠根比平均为(0.99±0.32);临床冠根平均为(1.41±0.33)。 不同种植体冠根比之间的生存率没有明显差异(P >0.05)。 种植体周围骨垂直高度丧失平均值为(-0.64±0.30) mm。按解剖冠根比小于1、1 ~1.9 和大于或等于2 将种植体分为3 组,骨垂直高度丧失分别为(-0.86± 0.25) mm、(-0.46 ± 0.20) mm 和-0.11 mm,各组间的差异无统计学意义(P >0.05)。 按临床冠根比小于1、1 ~1.4、1.5 ~1.9 和大于或等于2 将种植体分为4 组,骨垂直高度丧失量分别为(-1.84 ±0.84) mm、(-0.77 ± 0.08) mm、(-0.36 ± 0.09) mm 和(-0.17±0.05) mm,各组间的差异无统计学意义(P >0.05)。

结论

后牙区种植牙的解剖冠根比或临床冠根比大小没有对种植体生存率和周围骨垂直高度丧失产生影响,冠根比大的种植体同样可以获得良好的临床效果。

Objective

To investigate the influence of the crown-to-implant ratio (C/I) on implant survival and changes of the marginal bone level (MBL).

Methods

The study was composed of 52 patients of the prosthodontics department of Foshan Chancheng hospital of Stomatology, who had at least one single-tooth ITI implant with a crown restoration in the posterior region from January, 2008 to February, 2009. All patients were examined clinically and radiographically in recall visits. The anatomic and clinical C/I and the MBL were measured from digital periapical radiographs and then statistically analyzed.

Results

Four implants failed during the follow-up period, and the 3-year survival rate was 95.2%. The mean anatomic C/I was (0.99 ± 0.32), while the clinical C/I was (1.41 ± 0.33). No significant influence of the anatomic and clinical C/I was found on the implant survival rate and MBL(P >0.05).

Conclusion

In this study, the C/I did not affect the survival and changes of the marginal bone level of implants supporting single crown restorations in the posterior region of the jaw.

图1 种植体的解剖冠根比例和临床冠根比例示意图
图2 种植体解剖冠根比例
图3 种植体临床冠根比例
表1 各组解剖冠根比的种植体周围骨垂直高度丧失
表2 各组临床冠根比的种植体周围骨垂直高度丧失
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