Department of Prosthodontics, Medical University of Vienna, Austria.
Int J Oral Maxillofac Implants. 2011 Sep-Oct;26(5):1043-50.
The aim of this retrospective study was to evaluate implant survival/success rates and peri-implant parameters as well as patient satisfaction for uniformly designed implant-supported anterior maxillary or mandibular fixed partial dentures (FPDs).
A retrospective study was conducted on patients with maxillary or mandibular anterior partial edentulism (all incisors missing) treated between 2002 and 2006 with a two-implant-supported four-unit FPD. All FPDs were of the same design: two implant abutments in the lateral incisor positions and two ovate pontics in the central incisor positions. Cumulative implant survival rates and peri-implant conditions (marginal bone loss, pocket depth, Plaque Index, Gingival Index, Bleeding Index, Periotest values) as well as the incidence and type of prosthodontic maintenance were evaluated. The patients' subjective satisfaction rate was surveyed using multiple questionnaires with a 10-point scoring system (0 = not satisfied to 10 = highly satisfied).
Thirty-six of 38 patients (dropout: 5%) with 72 implants (50 maxillary and 22 mandibular implants, 25 maxillary and 11 mandibular FPDs) were available for follow-up after a mean observation period of 56.2 ± 10.3 months. High cumulative implant survival and success rates (100%) and healthy peri-implant parameters (mean marginal bone resorption: 1.8 ± 0.3 mm; mean pocket depth: 2.5 ± 1.0 mm; Periotest value: -4.5 ± 1.1; and Plaque/Bleeding/Gingival indices of 0 in 70% of sites [with significantly better results in the maxilla than in the mandible]) were achieved. The most frequent required prosthodontic maintenance efforts were maxillary recementation (3/25; 12%) and mandibular rebasing (2/11; 18.2%). A high score for satisfaction was obtained, although slightly better overall results were seen for maxillary than for mandibular FPDs.
For all parameters evaluated, these FPDs proved to be a viable treatment procedure for anterior partial edentulism with good clinical and esthetic outcomes.
本回顾性研究旨在评估统一设计的种植体支持上前牙或下颌前牙固定局部义齿（FPD）的种植体存活率/成功率以及种植体周围参数和患者满意度。
对 2002 年至 2006 年间采用双种植体支持的四单位 FPD 治疗的上颌或下颌前牙部分缺失（所有切牙缺失）的患者进行了回顾性研究。所有 FPD 的设计均相同：在侧切牙位置有两个种植体基台，在中切牙位置有两个卵形桥体。评估了累积种植体存活率和种植体周围状况（边缘骨丧失、牙周袋深度、菌斑指数、牙龈指数、出血指数、牙周测试值）以及修复体维护的发生率和类型。使用 10 分制（0=不满意至 10=非常满意）的多项问卷评估了患者的主观满意度。
38 名患者中有 36 名（失访率：5%），72 枚种植体（50 枚上颌种植体和 22 枚下颌种植体，25 枚上颌 FPD 和 11 枚下颌 FPD）可在平均 56.2±10.3 个月的随访期后进行随访。高累积种植体存活率和成功率（100%）以及健康的种植体周围参数（平均边缘骨吸收：1.8±0.3mm；平均牙周袋深度：2.5±1.0mm；牙周测试值：-4.5±1.1；70%的位点菌斑/出血/牙龈指数为 0，且上颌的结果明显优于下颌）。最常见的需要进行修复体维护的是上颌重新粘接（3/25；12%）和下颌重新基底（2/11；18.2%）。获得了较高的满意度评分，但上颌 FPD 的总体结果略好于下颌 FPD。
对于所有评估的参数，这些 FPD 被证明是治疗前牙部分缺失的可行治疗方法，具有良好的临床和美学效果。
