Kupietzky Ari, Waggoner William F, Galea Jon
Department of Pediatric Dentistry, Hebrew University-Hadassah, Faculty of Dental Medicine, Jerusalem, Israel.
Pediatr Dent. 2003 Nov-Dec;25(6):577-81.
The aim of this study was to examine the clinical and radiographic success of the treatment of maxillary anterior primary incisors with composite resin strip crowns placed in a private practice setting.
This was a retrospective, clinical study of patients who had strip crowns (SC) placed on maxillary primary incisors, returned for at least 1, 6-month recall examination, and whose parents consented to participate in the study. Radiographic and photographic examinations were used for evaluation. Two evaluators rated the images independently. When ratings were not in agreement, the 2 examiners reviewed the photograph or radiograph together and reached a consensus rating.
One hundred twelve restorations placed in 40 children were evaluated. The evaluations were performed after the crowns had been in place for an average of 18 months. None of the restorations were totally lost, and only 12% were rated as having lost some resin material, resulting in an 88% overall retention rate. There was no difference in restoration success if the crowns were placed 4 at a time, or if fewer crowns were placed in a single sitting; the failure rates were comparable. Teeth that had pulpal treatment were judged to have far more significant color match discrepancies than those teeth without pulpal treatment. Ninety-one percent of the teeth demonstrated healthy pulps. Eight percent had some pulpal changes but did not require immediate attention. Only 1 tooth showed radiographic evidence of pulpal necrosis. Only 11 teeth had pulpal treatment, but of these, 10 demonstrated clinical success.
Composite resin strip crowns for restoring primary incisors with large or multisurface caries performed well. Color match of these crowns with adjacent teeth may be significantly reduced when placed upon teeth that have undergone pulpectomy treatment and have been obturated with an iodoform paste. However, based upon the results of this study, the strip crown may provide an esthetic and durable restoration for carious primary incisors.
本研究的目的是在私人诊所环境中，检查用复合树脂条冠治疗上颌乳前牙的临床和影像学成功率。
这是一项对在上颌乳前牙放置条冠、返回进行至少1次6个月召回检查且其父母同意参与研究的患者的回顾性临床研究。使用影像学和摄影检查进行评估。两名评估者独立对图像进行评分。当评分不一致时，两名检查者一起复查照片或X光片并达成共识评分。
对40名儿童中放置的112个修复体进行了评估。评估在冠就位平均18个月后进行。没有修复体完全脱落，只有12%被评为有一些树脂材料脱落，总体保留率为88%。一次放置4个冠或一次放置较少冠的修复成功率没有差异；失败率相当。接受牙髓治疗的牙齿被判定比未接受牙髓治疗的牙齿有更明显的颜色匹配差异。91%的牙齿牙髓健康。8%有一些牙髓变化但不需要立即处理。只有1颗牙齿有牙髓坏死的影像学证据。只有11颗牙齿接受了牙髓治疗，但其中10颗显示临床成功。
用于修复有大面积或多面龋的乳前牙的复合树脂条冠表现良好。当这些冠放置在接受过牙髓摘除术并用碘仿糊剂充填的牙齿上时，与相邻牙齿的颜色匹配可能会显著降低。然而，基于本研究的结果，条冠可为龋坏的乳前牙提供美观且持久的修复。
