Anna-Júnior Arnaldo Sant', Tanomaru-Filho Mário, Duarte Marco Antônio Hungaro, da Silva Guilherme Ferreira, Bosso Roberta, Guerreiro-Tanomaru Juliane M
Department of Restorative Dentistry, Araraquara Dental School, UNESP - Univ Estadual Paulista, Araraquara, Brazil.
Department of Dentistry, Bauru Dental School, USP - Univ of São Paulo, Bauru, São Paulo, Brazil.
J Conserv Dent. 2014 May;17(3):212-5. doi: 10.4103/0972-0707.131777.
To evaluate the filling of simulated lateral canals with gutta-percha or Resilon when using thermomechanical compaction.
Forty-five human single-rooted teeth were subjected to tooth decalcification and clearing.
After root canal preparation, artificial lateral canals were made at 2, 5, and 8 mm from the working length (WL), corresponding to the apical, middle, and cervical thirds, respectively. The specimens were divided (n = 15) according to the filling material: Dentsply gutta-percha (GD), Odous gutta-percha (GO), and Resilon cones (RE). Root canals were obturated by thermomechanical compaction using a #45 compactor and no sealer. Lateral canals were analyzed by digital radiography and digital images after tooth decalcification and clearing using the Image Tool software.
Data were subjected to the Kruskal-Wallis and Dunn tests at 5% significance.
In the coronal third, RE and GO presented more filling ability than GD (P < 0.05). In the middle and apical thirds, RE presented the best results.
Resilon demonstrated filling ability as material for root canal obturation by using thermomechanical compaction.
评估在使用热机械压实技术时，牙胶或Resilon对模拟侧支根管的充填情况。
对45颗人单根牙进行脱钙和透明处理。
根管预备后，在距工作长度（WL）2mm、5mm和8mm处制作人工侧支根管，分别对应根尖、根中及根颈1/3。根据充填材料将标本分为3组（n = 15）：登士柏牙胶（GD）、欧度牙胶（GO）和Resilon根管糊剂（RE）。使用45号压实器，不使用封闭剂，通过热机械压实法充填根管。在牙齿脱钙和透明处理后，使用Image Tool软件通过数字X线摄影和数字图像分析侧支根管。
数据采用Kruskal-Wallis检验和Dunn检验，显著性水平为5%。
在冠1/3，RE和GO的充填能力高于GD（P < 0.05）。在根中1/3和根尖1/3，RE的充填效果最佳。
Resilon作为一种根管充填材料，在使用热机械压实技术时表现出良好的充填能力。
