摘要
目的:观测GuttaFlow常温流动牙胶与根管壁的密合程度和根尖封闭性。方法:选取60个新鲜拔除的单根管牙,随机分为A、B两组,每组30个,均预备根管至同一标准,A组用GuttaFlow常温牙胶充填法充填;B组用冷牙胶侧方加压充填根管。采用10 g/L亚甲蓝染色法观测根尖1/3的封闭性。结果:两种充填材料均不能完全密闭根管,均与根管壁有细微的缝隙。GuttaFlow组的染色线长度为1.46±0.23,冷牙胶组的染色线长度为2.06±0.58,两组差异有统计学意义(P<0.05)。结论:GuttaFlow常温流动牙胶对根尖的封闭性优于冷牙胶侧压充填法。
AIM：To observe the effect of apical sealing with GuttaFlow. METHODS： Sixty freshly extracted single-root human teeth were randomly divided into two experimental groups with 30 samples in each. The root canal was prepared. The teeth were obturated with GuttaFlow in group A and with gutta-percha in group B by lateral condensation. After dyeing for 7 days in 1% methylene blue, dyeing lines were measured to reflect the microleakage of two canal obturation techniques with different root canal sealers. RESULTS ：In the GuttaFlow group, dyeing lines had an average length of 1.46 ± 0.23mm and in the gutta-percha group of 2.06 ± 0.58 mm. Group A and Group B had difference. （P 〈 0.05）. CONCLUSION： The apical sealing ability of GuttaFlow is better than that of the gutta-percha .
出处
《牙体牙髓牙周病学杂志》
CAS
北大核心
2010年第1期24-26,共3页
Chinese Journal of Conservative Dentistry
关键词
根管充填
根管封闭
微渗漏
canal obturation
root canal seal
microleakage
