周俊红

[摘要] 目的 观察比较镍铬合金烤瓷冠和二氧化锆全瓷冠的临床应用效果。 方法 选取中关村医院口腔科2011年2月～2012年2月治疗的牙科患者80例106颗患牙，其中40例患者共56颗牙采用二氧化锆全瓷冠修复，设为二氧化锆全瓷冠组；40例患者50颗牙采用镍铬合金烤瓷冠修复，设为镍铬合金全瓷冠组。对两组在修复完成时及修复完成后1年进行修复体固位、修复体外形、边缘适合性、牙龈状况、继发龋等项目比较。 结果 ①两组患牙修复完成时各指标均达到A级标准；两组患牙修复完成1年时临床各指标比较，二氧化锆全瓷冠组A级比例[96.4%（54/56）]明显高于镍铬合金烤瓷冠组[86.0%（43/50）]，差异有统计学意义（P < 0.05）；两组患者在修复体固位、修复体外形、边缘适合性、继发龋等项目比较，差异无统计学意义（P > 0.05）。②随访时间1年后，二氧化锆全瓷冠组、镍铬合金烤瓷冠组修复后1年的菌斑指数[（0.92±0.36）、（0.89±0.40）]与同组术前[（0.88±0.41）、（0.88±0.41）]比较，差异均无统计学意义（P > 0.05）。二氧化锆全瓷冠组、镍铬合金烤瓷冠组随访时间1年后牙周探诊深度[（2.41±0.20）、（2.40±0.20）mm]与同组术前比较[（2.26±0.23）、（2.28±0.21）mm]无明显变化，差异均无统计学意义（P > 0.05）。 结论 二氧化锆全瓷冠修复临床效果好于镍铬合金烤瓷冠。

[关键词] 二氧化锆全瓷冠；镍铬合金全瓷冠；临床效果

[中图分类号] R783 [文献标识码] A [文章编号] 1673-7210（2015）05（c）-0109-04

[Abstract] Objective To observe and compare clinical effects of the zirconia all-ceramic crowns and Ni-Cr alloy crowns. Methods 80 patients of dentistry with 106 tooth in Department of Stomatology， Zhongguancun Hospital from February 2011 to February 2012 were selected， 40 patients with 56 tooth were treated with zirconia all-ceramic crowns and were chosen as zirconia all-ceramic crowns group； 40 patients with 50 tooth were treated with Ni-Cr alloy crowns and were chosen as Ni-Cr alloy crowns group. The items of restoration retainer， restoration contour， marginal accuracy， gingival situation， secondary caries between the two groups at repairmen time and 1 year after the repairmen were compared. Results ①The two groups were all reached grade A in each indicator at repairmen time. The gingival tissue of grade A in zirconia all-ceramic crowns group [96.4% （54/56）] was higher than that in Ni-Cr alloy crowns group [86.0% （43/50）] 1 year after the repairmen， the difference was statistically significant （P < 0.05）. The differences of restoration retainer， restoration contour， marginal accuracy， secondary caries between the two groups were not statistically significant （P > 0.05）. ②The differences of plaque index in the zirconia all-ceramic crowns group and the Ni-Cr alloy crowns group between 1 year after the repairmen [（0.92±0.36）， （0.89±0.40）] and before the repairmen [（0.88±0.41）， （0.88±0.41）] were all not statistically significant （P > 0.05）. The differences of periodontal probing depth in the zirconia all-ceramic crowns group and the Ni-Cr alloy crowns group between 1 year after the repairmen [（2.41±0.20）， （2.40±0.20） mm] and before the repairmen [（2.26±0.23）， （2.28±0.21） mm] were all not statistically significant （P > 0.05）. Conclusion The clinical effect of Zirconia all-ceramic crowns is better than Ni-Cr alloy crowns.

[Key words] Zirconia all-ceramic crowns； Ni-Cr alloy crowns； Clinical performance

随着牙齿修复材料的发展，以及人们对牙齿修复体的要求越来越高，二氧化锆作为一种新型材料已经开始应用于临床，其具有良好的美观性和组织相容性，无金属刺激或过敏性，不产生影像学伪影[1]。但二氧化锆全瓷冠价格昂贵，部分患者难以接受。本研究选择中关村医院（以下简称“我院”）治疗的患者80例106颗患牙，比较分析使用二氧化锆全瓷冠和镍铬合金烤瓷冠修复体的临床效果。现将结果……