Fixed Prosthodontics Department, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.
OMFS Department, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.
J Esthet Restor Dent. 2022 Dec;34(8):1247-1262. doi: 10.1111/jerd.12961. Epub 2022 Sep 19.
To assess the clinical outcome of three esthetic implant-supported crown systems fabricated with semi-digital workflow and their influence on the clinical outcome of dental implants.
A total of 30 participants had received dental implants restoring missing maxillary first/second premolars. After 6 weeks, customized zirconia abutments were early loaded. Two months later, the definitive crowns were fabricated using semi-digital workflow and cemented. According to the crown material, 3 groups were randomly allocated; group (Z): ultrahigh-translucent monolithic zirconia, group (C): resin-matrix ceramic and group (P): polyetherketoneketone veneered with light-cured composite resin. Clinical outcomes including the survival and success rates were evaluated at baseline, 6, 12, 18, and 24 months.
The survival rate for all studied groups was 100%, while their success rate was 100% for group (Z) and 90% for group (C) and group (P). Based on the functional implant prosthodontic score, a statistically significant difference was detected between group (Z) and group (P) (p < 0.001) as well as between group (C) and group (P) (p = 0.01).
The zirconia group had the most favorable clinical behavior, while the polyetherketoneketone had the least. All crown systems had comparable success rates with similar values of the peri-implant marginal bone loss.
Using semi-digital workflow, ultrahigh-translucent monolithic zirconia, resin-matrix ceramic and polyetherketoneketone veneered with light-cured composite resin can be considered as favorable implant-supported crowns. The implant-supported crown system based on polyetherketoneketone veneered with light-cured composite resin is counted as a promising esthetic and restorative option.
评估采用半数字化工作流程制作的三种美学种植体支持的牙冠系统的临床效果及其对种植体临床效果的影响。
共 30 名患者接受了上颌第一/二前磨牙缺失的种植修复。6 周后，早期加载定制氧化锆基台。2 个月后，采用半数字化工作流程制作最终牙冠并粘结。根据牙冠材料，将 3 组患者随机分配；组（Z）：超高透明度整体氧化锆，组（C）：树脂基质陶瓷，组（P）：聚醚醚酮覆以光固化复合树脂。在基线、6、12、18 和 24 个月时评估临床结果，包括存活率和成功率。
所有研究组的存活率均为 100%，而组（Z）和组（C）、组（P）的成功率分别为 100%和 90%。根据功能性种植体修复体的评分，组（Z）和组（P）之间存在统计学显著差异（p<0.001），组（C）和组（P）之间也存在统计学显著差异（p=0.01）。
氧化锆组的临床行为最有利，而聚醚醚酮组最差。所有牙冠系统的成功率相当，种植体边缘骨吸收值相似。
使用半数字化工作流程，可以考虑超高透明度整体氧化锆、树脂基质陶瓷和覆以光固化复合树脂的聚醚醚酮作为有利的种植体支持牙冠。覆以光固化复合树脂的聚醚醚酮基牙冠系统被认为是一种有前途的美学和修复选择。
