Int J Prosthodont. 2024 Jun 21(3):261-270. doi: 10.11607/ijp.8264.
To assess the clinical concept of patient treatment with fixed tooth- and implant-supported restorations in a university-based undergraduate program after 13 to 15 years.
In total, 30 patients (mean age 56 years) who had received multiple tooth- and implant-supported restorations were recalled after 13 to 15 years. The clinical assessment comprised biologic and technical parameters as well as patient satisfaction. Data were analyzed descriptively, and the 13- to 15-year survival rates for tooth- and implant-supported single crowns and fixed dental prostheses (FDPs) were calculated.
The survival rate of tooth-supported restorations amounted to 88.3% (single crowns) and 69.6% (FDPs); in implants, it reached 100% for all types of restorations. Overall, 92.4% of all restorations were free of technical complications. The most common technical complication was chipping of the veneering ceramic (tooth-supported restorations: 5.5%; implant-supported restorations: 13% to 15.9%) regardless of the material used. For tooth-supported restorations, increased probing depth ≥ 5 mm was the most frequent biologic complication (22.8%), followed by endodontic complications of root canal-treated teeth (14%) and loss of vitality at abutment teeth (8.2%). Peri-implantitis was diagnosed in 10.2% of implants.
The results of this study indicate that the clinical concept implemented in the undergraduate program and performed by undergraduate students works well. The clinical outcomes are similar to those reported in the literature. In general, the majority of biologic complications occur in reconstructed teeth, whereas implant-supported restorations are more prone to technical complications.
评估经过 13 至 15 年的大学本科课程后，使用固定牙和种植体支持修复体对患者进行治疗的临床概念。
共召回 30 名（平均年龄 56 岁）接受过多种牙和种植体支持修复体的患者，时间为 13 至 15 年后。临床评估包括生物学和技术参数以及患者满意度。数据采用描述性分析，计算牙和种植体支持的单冠和固定义齿（FDP）的 13 至 15 年生存率。
牙支持修复体的存活率为 88.3%（单冠）和 69.6%（FDP）；在种植体中，所有类型的修复体的存活率均达到 100%。总体而言，所有修复体中有 92.4%无技术并发症。最常见的技术并发症是贴面陶瓷的碎裂（牙支持修复体：5.5%；种植体支持修复体：13%至 15.9%），无论使用何种材料。对于牙支持修复体，最常见的生物学并发症是探诊深度增加≥5mm（22.8%），其次是根管治疗牙的根管并发症（14%）和基牙活力丧失（8.2%）。在 10.2%的种植体中诊断出种植体周围炎。
本研究结果表明，本科课程中实施的临床概念以及由本科生执行的临床概念效果良好。临床结果与文献报道相似。一般来说，大多数生物学并发症发生在重建牙中，而种植体支持的修复体更容易出现技术并发症。
