Leonardo Marcela V, Goto Edson H, Torres Carlos R G, Borges Alessandra B, Carvalho Cláudio A T, Barcellos Daphne C
Clinical Research Academic Group, São José dos Campos School of Dentistry, São Paulo State University, SP, Brazil.
J Oral Sci. 2009 Dec;51(4):593-9. doi: 10.2334/josnusd.51.593.
The aim of this study was to investigate the apical leakage of roots filled by three different gutta-percha techniques: lateral condensation, Tagger's hybrid and E&Q Master. Forty-two extracted single-rooted teeth were used. The coronal part of each tooth was removed and the root received biomechanical preparation using a 60-K file. The roots were randomly divided into three groups according to the technique of filling the root canal: Group I, lateral condensation; Group II, Tagger's hybrid; Group III, E&Q Master. The roots were submitted to dye leakage test with Rhodamine B for 7 days, using vacuum during the initial 30 min. The teeth were sectioned longitudinally and the leakage was measured in a linear fashion from apex to crown. Statistical analysis indicated that lateral condensation and E&Q Master techniques showed lower leakage than Tagger's technique (P = 0.0016). However, statistically no difference was found between lateral condensation and E&Q Master system techniques.
本研究的目的是调查三种不同牙胶技术（侧方加压法、Tagger混合法和E&Q Master法）充填根管后的根尖微渗漏情况。使用了42颗拔除的单根牙。去除每颗牙的冠部，并用60号K锉对牙根进行生物力学预备。根据根管充填技术将牙根随机分为三组：第一组，侧方加压法；第二组，Tagger混合法；第三组，E&Q Master法。将牙根用罗丹明B进行7天的染料渗漏试验，最初30分钟使用真空。将牙齿纵向切开，以线性方式从根尖到冠部测量渗漏情况。统计分析表明，侧方加压法和E&Q Master法的渗漏低于Tagger法（P = 0.0016）。然而，侧方加压法和E&Q Master系统技术之间在统计学上没有差异。
