Lalithamma Jaini Jaini, Mallan Sreekanth Anantha, Murukan Pazhani Appan, Zarina Rita
1 Department of Prosthodontics, Educare Institute of Dental Sciences, Malappuram, Kerala, India.
J Oral Implantol. 2014 Jun;40(3):239-49. doi: 10.1563/AAID-JOI-D-11-00163.
The study compared the marginal accuracy of premade and cast abutments. Premade titanium, stainless steel, and gold abutments formed the control groups. Plastic abutments were cast in nickel-chromium, cobalt-chromium and grade IV titanium. The abutment/implant interface was analyzed. Analysis of variance and Duncan's multiple range test revealed no significant difference in mean marginal microgap between premade gold and titanium abutments and between premade stainless steel and cast titanium abutments. Statistically significant differences (P < .001) were found among all other groups.
该研究比较了预制基台和铸造基台的边缘精度。预制钛基台、不锈钢基台和金基台构成对照组。用镍铬合金、钴铬合金和IV级钛铸造塑料基台。对基台/种植体界面进行了分析。方差分析和邓肯多重极差检验显示，预制金基台和钛基台之间以及预制不锈钢基台和铸造钛基台之间的平均边缘微间隙无显著差异。在所有其他组之间发现了具有统计学意义的差异（P <.001）。
