华西口腔医学杂志

• 临床研究 • 上一篇    下一篇

镀金对金属全冠固位力的影响

张小军 石连水 朱洪水   

  1. 南昌大学附属口腔医院修复科,江西南昌330006
  • 收稿日期:2008-10-25 修回日期:2008-10-25 出版日期:2008-10-20 发布日期:2008-10-20
  • 通讯作者: 石连水,Tel:0791-6086218
  • 作者简介: 张小军(1982-),男,江西人,住院医师,硕士
  • 基金资助:

    江西省科技厅基金资助项目(2003504)

The influence of gilt to the retention of the complete metal crown

ZHANG Xiao-jun, SHI Lian-shui, ZHU Hong-shui   

  1. Dept. of Prosthetics, Stomatological Hospital, Nanchang University, Nanchang 330006, China
  • Received:2008-10-25 Revised:2008-10-25 Online:2008-10-20 Published:2008-10-20
  • Contact: SHI Lian-shui,Tel:0791-6086218

摘要:

目的探讨镀金技术对非贵金属全冠固位力的影响。方法将60个镍铬合金全冠随机分为3组,每组20个。对照组喷砂后不作处理,部分镀金组在内冠颈缘1.3 mm范围内镀金,全冠镀金组的内冠全部镀金。将全冠用玻璃离子与底座黏固后,在Instron万能材料力学实验机上测量固位力,对3组之间的固位力进行统计分析。结果对照组、部分镀金组、全冠镀金组的固位力分别为(657±151)N、(632±139)N、(569±103)N。对照组与全冠镀金组、全冠镀金组与部分镀金组固位力之间的差异有统计学意义(P<0.05),而对照组与部分镀金组固位力之间的差异无统计学意义(P>0.05)。结论镍铬合金全冠镀金后固位力会有所下降,但仍能满足临床上的固位要求。部分镀金全冠固位力虽有所下降,但可忽略不计。

关键词: 镍铬合金, 镀金, 金属全冠, 固位

Abstract:

Objective To research the influence of gilt to the retention of the complete metal crown. Methods Sixty Ni-Cr alloy complete metal crown were divided into three groups, control group(common Ni-Cr alloy complete metal crown), whole gold-plating group(whole gilding on the tissue surface of the inner Ni-Cr alloy complete metal crown), partial gold-plating group(gilding on the tissue surface of 1/3 cervical inner Ni-Cr alloy complete metal crown). The retention force of complete metal crown was measured by tensile force/pressure ergograph. Results The retention force of control group, partial gold -plating group, whole gold -plating group were (657 ± 151) N, (632±139)N, (569±103)N, respectively. There were significant differences between control group and whole goldplating group, whole gold-plating group and partial gold-plating group(P<0.05). There was no significant difference between control group and partial gold -plating group(P >0.05). Conclusion The force of retention would de - crease after gilding on the tissue surface of the inner Ni-Cr alloy complete metal crown, but have no influence to normal retention requirement of complete crown. Although the retention of partial gold-plating complete metal crown had somewhat decrease, it could be ignored.

Key words: Ni-Cr alloy, gilt, complete metal crown, retention