Potential complications of CAD/CAM-produced resin composite crowns on molars: A retrospective cohort study over four years.
Potential complications of CAD/CAM-produced resin composite crowns on molars: A retrospective cohort study over four years.
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DOI：
10.1371/journal.pone.0266358
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发表时间：
2022
期刊：
影响因子：
3.7
通讯作者：
Egusa H
中科院分区：
文献类型：
--
作者：
Inomata M;Harada A;Kasahara S;Kusama T;Ozaki A;Katsuda Y;Egusa H
评估计算机辅助设计/计算机辅助制造生产的树脂复合冠（CAD/CAM复合冠）在磨牙上的临床性能，特别关注放置位置。基于2016年6月至2021年3月磨牙CAD/CAM复合冠患者的临床记录，进行回顾性队列研究。基于Cox比例风险模型估算风险比（hr）和95%置信区间（95% ci），评价牙位对并发症类型和发生的影响。协变量包括牙冠位置（上颌/下颌骨、近端牙/非近端牙、第一磨牙/第二或第三磨牙）和牙髓治疗（非重要牙）或未治疗（重要牙）。总共评估了362个冠（平均随访378天，中位随访286天），106个冠（29.3%）出现并发症，最常见的是冠脱粘。1年后的累计成功率和生存率分别为70.9%和93.7%，3年后的累计成功率和生存率分别为49.5%和86.5%。基于冠位参数的Kaplan-Meier曲线的hr和log-rank检验差异无统计学意义（P < 0.05）。然而，放置在重要牙齿上的风险高于放置在非重要牙齿上的风险（HR, 1.55; 95% CI, 1.03-2.23）。此外，水泥作为协变量产生了高HR。CAD/CAM复合磨牙冠的位置不太可能是并发症的危险因素；因此，临床上这些冠可以应用于所有的磨牙。然而，将这种磨牙冠应用于重要的牙齿和使用除粘接树脂水泥以外的水泥存在风险。
Evaluation of the clinical performance of computer-aided design/computer-aided manufacturing-produced resin composite crowns (CAD/CAM composite crowns) on molars with a particular focus on placement location. A retrospective cohort study was performed based on the clinical records of patients with CAD/CAM composite crowns on molars (June 2016 to March 2021). The hazard ratios (HRs) and 95% confidence intervals (95% CIs) were estimated based the Cox proportional hazard model to evaluate the effect of tooth location on complication type and occurrence. Covariates included crown location (maxilla/mandible, distalmost tooth/not distalmost tooth, and first molar/second or third molar) and endodontically treated (nonvital) or untreated (vital) tooth. Overall, 362 crowns were evaluated (mean follow-up: 378 days, median: 286 days), and 106 crowns (29.3%) showed complications, most frequently crown debonding. The cumulative success and survival rates were 70.9% and 93.7%, respectively, after 1 year and 49.5% and 86.5%, respectively, after 3 years. There was no significant difference in the HRs and log-rank tests in the Kaplan–Meier curves based on crown location parameters (P > 0.05). However, placement on vital teeth was associated with higher risks than on nonvital teeth (HR, 1.55; 95% CI, 1.03–2.23). In addition, the cement as a covariate yielded a high HR. The location of CAD/CAM composite molar crowns is unlikely a risk factor for complications; therefore, these crowns can be clinically applied to all molars. However, the application of such molar crowns to vital teeth and the use of a cement other than adhesive resin cement present risks.
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影响因子：
3.6
作者：
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通讯作者：
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