Vallittu P K, Sevelius C
Institute of Dentistry, University of Turku, Turku, Finland.
J Prosthet Dent. 2000 Oct;84(4):413-8. doi: 10.1067/mpr.2000.109782.
Resin-bonded, glass fiber-reinforced composite fixed partial dentures (FPDs) have been under development for some time. There is a lack of data regarding the clinical usefulness of such prostheses.
The clinical performance of 31 resin-bonded, glass fiber-reinforced composite fixed partial dentures was evaluated in a preliminary study.
The prostheses were made to replace 1 to 3 missing maxillary or mandibular teeth in each of 31 patients. The prostheses had a framework made of continuous unidirectional E-glass fibers with multiphase polymer matrix and light-polymerized particulate composite resin veneering. The prostheses were examined after 6-month periods for up to 24 months (mean follow-up time was 14 months). Partial or total debonding of the prostheses or the framework fracture was considered a treatment failure.
Two prostheses debonded during the follow-up period; 1 debonding was related to improper occlusal adjustment and the other to unknown reasons. Kaplan-Meier survival probability at 24 months was 93%. No framework fractures were observed.
The results of this preliminary study suggest that the resin-bonded, glass fiber-reinforced FPDs may be an alternative for resin-bonded FPDs with a cast metal framework.
树脂粘结、玻璃纤维增强复合固定局部义齿(FPDs)已经研发了一段时间。关于此类修复体临床实用性的数据尚缺。
在一项初步研究中评估了31例树脂粘结、玻璃纤维增强复合固定局部义齿的临床性能。
制作修复体以替换31例患者中上颌或下颌缺失的1至3颗牙齿。修复体有一个由连续单向E玻璃纤维与多相聚合物基质制成的框架,以及光固化颗粒复合树脂贴面。在6个月期间对修复体进行检查,最长达24个月(平均随访时间为14个月)。修复体部分或完全脱粘或框架折断被视为治疗失败。
随访期间有2个修复体脱粘;1次脱粘与咬合调整不当有关,另1次原因不明。24个月时的Kaplan-Meier生存概率为93%。未观察到框架折断。
这项初步研究的结果表明,树脂粘结、玻璃纤维增强的固定局部义齿可能是有铸造金属框架的树脂粘结固定局部义齿的一种替代方案。