摘要
目的:研究在下颌磨牙不同锥度的根管中,垂直加压充填技术根尖封闭性与根管充填质量的差异。方法:选取30颗近中根为单根的下颌磨牙,其根管有两个独立的根管口与根尖孔,截去牙冠及远中根后将近中两根管分别预备为0.06与0.10锥度,采用垂直加压充填技术进行充填。运用染色透明法观察根管封闭效果及根管充填质量。结果:0.06锥度根管微渗漏平均为(1.20±0.70)mm,0.10锥度根管微渗漏平均为(0.43±0.29)mm(P<0.01)。0.06锥度根管组超充8例,0.10锥度根管组超充1例(P<0.05)。结论:在下颌磨牙采用垂直加压技术时0.10锥度根管能得到更好的充填效果。
Objective： To investigate apical sealing ability of warm vertical compaction in different tapered canals-taper 0.06 and taper 0.10 in mandibular molars.Methods： 30 extracted,single with two orifices and two mature apices human mandibular molars were used.Both canals of each mesial root were instrumented to size 30 with different tapers-taper 0.06 and taper 0.10.Then all of canals were obturated with warm vertical compaction technique.Dye penetration and clearing method were used to access the apical sealing ability.Results： The mean microleakage of taper 0.06 canals was 1.20±0.70mm.The mean microleakage of taper 0.10 canals was 0.43±0.29mm.8 cases of extrusion were found in taper 0.06 canals,while 1 case in taper 0.10 canals.Conclusion： Taper 0.10 was a better choice when warm vertical compaction technique was used in mandibular molars.
出处
《口腔医学研究》
CAS
CSCD
北大核心
2010年第2期251-252,255,共3页
Journal of Oral Science Research
