Tannure Patricia Nivoloni, Azevedo Camilla Pontes, Barcelos Roberta, Gleiser Rogerio, Primo Laura Guimarães
Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
Pediatr Dent. 2011 Jul-Aug;33(4):316-20.
The aim of this study was to evaluate, via clinical and radiographic assessment, pulpectomy outcomes performed on primary anterior teeth both with and without a citric acid solution to enhance smear layer removal.
Patients with a matched pair of primary incisors (split-mouth design) with irreversible pulp changes were selected. A total of 36 teeth (18 children) received pulpectomies and were followed for 36 months. Pulpectomies were performed using sodium hypochlorite and saline solution as canal irrigants; during the last irrigation, the tooth was randomly selected to receive ( Group 1) or not receive (Group 2) the citric acid solution for smear layer removal. The roots were filled with ZOE paste.
Overall pulpectomy success was 90.6%. Cases with smear layer removal were successful 82.3% of the time; those without smear layer removal, 88.2%, and there were no statistical differences (P=1.00).
Pulpectomy with smear layer removal in primary incisors exhibited, after 36 months, a high success rate; however, comparable results were obtained when the smear layer was not removed.
本研究旨在通过临床和影像学评估，评价在有无柠檬酸溶液辅助去除玷污层的情况下，对乳前牙进行牙髓摘除术的效果。
选择患有不可逆牙髓病变的乳切牙配对患者（采用自身对照设计）。共有36颗牙齿（18名儿童）接受了牙髓摘除术，并随访36个月。使用次氯酸钠和生理盐水作为根管冲洗剂进行牙髓摘除术；在最后一次冲洗时，随机选择牙齿接受（第1组）或不接受（第2组）柠檬酸溶液以去除玷污层。根管使用氧化锌丁香油糊剂充填。
牙髓摘除术的总体成功率为90.6%。去除玷污层的病例成功率为82.3%；未去除玷污层的病例成功率为88.2%，两者无统计学差异（P = 1.00）。
乳切牙牙髓摘除术在去除玷污层后，36个月时显示出较高的成功率；然而，未去除玷污层时也获得了类似的结果。
