金合金桩核冠与镍铬合金桩核冠修复的疗效比较  

Comparison of the clinical effects between gold-alloy post-core-crowns and nickel-chromium-alloy post-core-crowns

作　　者：孙长征[1] 丘洪添 蓝洁[1] 利小平 

机构地区：[1]广东省深圳牙科医疗中心,广东深圳518001

出　　处：《上海口腔医学》2009年第5期472-474,共3页Shanghai Journal of Stomatology

基　　金：广东省医学科学技术研究基金(WSTJJ20070101310103196603041632)~~

摘　　要：目的:评价金合金桩核冠及镍铬合金桩核冠修复的临床效果。方法:选取289例400颗经完善根管治疗的冠部严重缺损的前牙、前磨牙,规范制备根管根面,使用2种不同流动性的硅橡胶印模材料和预成塑料针制取根管根面印模,随机分为2组,分别制作金合金桩核冠(A组)及镍铬合金桩核冠(B组)修复,对修复效果进行跟踪观察(3a)。采用SPSS10.0软件包对数据进行χ2检验。结果:A、B2组桩核冠修复后保存率无显著性差异(P>0.05);在基牙牙龈炎和牙龈着色等方面,2组差异有显著性(P<0.05)。结论:金合金桩核冠更适合临床修复。PURPOSE： To evaluate the clinical effects between gold-alloy post-core-crowns and nickel-chromiumalloy post-core-crowns. METHODS： Four hundred incisors, canines and premolars from 289 patients were selected. The crown had been destroyed seriously and root canal therapy was carried out.The root canal and the surface of the root were prepared well, then silicone impression material was injected into the root canal and the prepared plastic pin was inserted. Precise impression was taken and divided into two groups randomly. Group A was restored by gold-alloy postcore-crowns, while Group B was restored by nickel-chromium-alloy post-core-crowns. The patients were followed up for 3 years, the clinical effects were evaluated and compared using SPSS10.0 software package for Chi-square test. RESULTS： There was no significant difference （P〉0.05）of maintenance rate between the two groups, but there was significant difference（P〈0.05 ） in the occurence of inflammation and staining of gingiva. CONCLUSION： Gold-alloy post-cor e-crown is more suitable for restoration of teeth defects than nickel-chromium-alloy post-core-crown. Supported by Re- search Fund of Medical Science and Technology of Guangdong Province （Grant No. WSTJJ20070101310103196603041632）.

关 键 词：桩核冠 金合金 镍铬合金 

分 类 号：R783.3[医药卫生—口腔医学]