Pediatric Dentistry Department, Dental School, Shiraz University of Medical Sciences, Shiraz, Iran.
J Adhes Dent. 2013 Feb;15(1):85-91. doi: 10.3290/j.jad.a28285.
To evaluate the clinical performance of polyethylene fiber for anterior primary teeth restorations in children after 2.5 years, according to modified Ryge criteria.
Fifty-five maxillary incisors with extensive caries in 24 Iranian patients (mean age 4.2 years) were restored. All teeth were treated endodontically. First, 4-mm layer of paste at the entrance of canal was removed, and a thin base layer of polycarboxylate cement was placed at the bottom of the prepared canal. All tooth surfaces were etched, rinsed and dried, and the dentin adhesive Single Bond (3M ESPE, St Paul, MN, USA) was applied. The teeth received intracanal fiber-reinforced resin (Ribbond Triaxial, Seattle, WA, USA) fixed with a flowable composite and the crowns were reconstructed with microhybrid composite resin (Z250, 3M). All restorations were evaluated every 6 months for 30 months by 2 independent evaluators. Statistical analysis was done with McNemar's test.
The surface textures for most of the restorations were judged as excellent. There was no evidence of significant changes in marginal integrity. Most restored incisors (81%) received an Alpha rating for retention. The baseline and recall retention scores differed significantly (p=0.002).
Polyethylene fiber posts associated with extensive composite restoration showed excellent clinical performance after 2.5 years in primary anterior teeth after pulp therapy.
根据改良 Ryge 标准，评估聚乙烯纤维在前牙乳牙修复中的 2.5 年后的临床性能。
对 24 名伊朗患者的 55 颗上颌切牙（平均年龄 4.2 岁）进行了广泛龋坏的修复。所有牙齿均进行了根管治疗。首先，去除根管入口处的 4mm 层糊剂，在准备好的根管底部放置一层薄薄的聚羧酸钙水泥基底。所有牙面均进行酸蚀、冲洗和干燥，并应用牙本质粘合剂Single Bond（3M ESPE，St Paul，MN，USA）。牙齿接受纤维增强树脂（Ribbond Triaxial，Seattle，WA，USA）的根管内固定，并用流动复合树脂重建牙冠，并用微混合复合树脂（Z250，3M）。由 2 位独立评估员每 6 个月评估所有修复体，为期 30 个月。采用 McNemar 检验进行统计学分析。
大多数修复体的表面纹理被评为优秀。边缘完整性没有明显变化的证据。大多数修复的切牙（81%）保留了 Alpha 评级。基线和召回保留评分差异有统计学意义（p=0.002）。
在牙髓治疗后的前牙乳牙中，聚乙烯纤维桩与广泛的复合修复体联合使用，在 2.5 年后表现出优异的临床性能。
