Snort-Term Prospective Clinical Evaluation of Monolithic and Partially Veneered Zirconia Single Crowns
Snort-Term Prospective Clinical Evaluation of Monolithic and Partially Veneered Zirconia Single Crowns
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DOI：
10.1111/jerd.12270
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发表时间：
2017-01-01
影响因子：
3.2
通讯作者：
Schmitter, Marc
中科院分区：
文献类型：
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作者：
Boemicke, Wolfgang;Rammelsberg, Peter;Schmitter, Marc
目的：本研究的目的是前瞻性地评价整体和部分(即面部)氧化锆单冠(MZC和PZC)的短期临床性能和美观性。方法：2011年9月至2013年6月，68名参与者接受了90个MZC和72个PZC。临床研究文献在冠粘结时(基线)、6个月的随访时和之后每年使用标准化的报告表进行。8名14个单冠的受试者(8个MZC和6个PZC)在临床随访期间退出。因此，60名受试者(28名男性，平均年龄62.5+/-13.1岁)在2016年2月安装了82个MZC和66个PZC(Kaplan Meier生存；修复的平均观察时间35.1+/-6.3个月)。对受试者和牙医的审美评分进行描述性统计，评分范围从0到10(0=不能接受的颜色和形状；10=优良的颜色和形状)。结果：并发症主要是生物学性质的。MZC和PZC三年累积无并发症生存率分别为93.6%(SE 2.8%)和95.5%(SE 2.6%)，三年累积无骨折生存率分别为100%和98.5%(SE 1.5%)。结论：整体式和部分贴面氧化锆冠可用于临床，具有良好的短期存活率和成功率，且不影响美观。然而，更长期的跟踪是可取的。
Objectives: The purpose of this study was to prospectively evaluate the short-term clinical performance and esthetics of monolithic and partially (i.e., facially) veneered zirconia single crowns (MZC and PZC, respectively).Methods: Between September 2011 and June 2013,68 participants received 90 MZCs and 72 PZCs.Clinical study documentation was performed at crown cementation (baseline), at the 6-month follow-up, and then yearly thereafter using standardized report forms. Eight participants with 14 single crowns (eight MZCs and six PZCs) dropped out during clinical follow-up.Thus, 60 participants (28 male, mean age 62.5 +/- 13.1 years) fitted with 82 MZCs and 66 PZCs were analyzed in February 2016 (Kaplan Meier survival; mean observation time for the restorations 35.1 +/- 6.3 months). Descriptive statistics were calculated for participants'and dentists' esthetic ratings on a numerical rating scale from 0 to 10 (0 = unacceptable color and shape; 10 = excellent color and shape).Results: Complications were predominantly biological in nature.One PZC was affected by minor chipping. Cumulative 3-year failure-free survival was 98.5% (standard error (SE), 1.5%) for both MZCs and PZCs.Three-year cumulative complication-free survival (success) was 93.6% (SE 2.8%) for MZCs and 95.5% (SE 2.6%) for PZCs.Three-year cumulative fracture-free survival was 100% for MZCs and 98.5% (SE 1.5%) for PZCs. Crowns of both types were awarded high esthetic scores by participants and dentists.Conclusions: Monolithic and partially veneered zirconia crowns can be used clinically with excellent short-term survival and success and without compromising esthetic appearance. Longer-term follow-up is, however, desirable.