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J Dent:釉质拮抗物抗抛光单晶氧化锆冠磨损的临床随机试验

2017-10-26 lishiting MedSci原创

这篇研究的目的是为了验证一种假说:在体内,釉质抗单晶氧化锆冠、釉质抗烤瓷熔附金属冠和釉质抗釉质之间的最大磨损没有差异。

这篇研究的目的是为了验证一种假说:在体内,釉质抗单晶氧化锆冠、釉质抗烤瓷熔附金属冠和釉质抗釉质之间的最大磨损没有差异。研究选取30名需要单冠修复的患者随机应用单晶氧化锆冠或烤瓷熔附金属冠。选择同区2颗未修复牙齿作为釉质抗釉质的对照。粘接后,扫描该区牙齿作为基线数据。随后获取聚乙烯基硅氧烷印模并白石灌注。患者在术后6个月和1年复查并再次取模。石膏模型通过tabletop激光扫描器进行扫描以确定最大磨损。统计学方法使用Mann-Whitney U检验来检测釉质抗氧化锆冠和抗金属-烤瓷冠的磨损差异。结果显示,氧化锆冠修复16例,金属-烤瓷冠修复14例。修复1年后,不同类型冠(p=0.165)、釉质拮抗物(p=0.235)和釉质对照(p=0.843) 之间的平均磨损没有显著性差异。结论:修复1年后,单晶氧化锆与金属-烤瓷冠和釉质对照相比展现出相似的釉质磨耗水平。临床意义:这篇研究具有临床意义,因为使用抛光单晶氧化锆对釉质产生的磨耗水平与金属-烤瓷以及釉质拮抗物具有可比较性。原始出处:Esquivel JF, Kim MJ, et al. Randomized Clinical Study of

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