摘要
目的观察登士柏机用镍钛根管器械磨牙弯曲根管预备的临床应用效果。方法选择435颗磨牙1 566个根管随机分为3组,机用PT组镍钛根管锉预备根管,手用PT组镍钛根管锉预备根管,两组均使用冠根向深入法预备技术,K型组不锈钢K锉(ISO标准型)预备根管,使用逐步后退法预备技术。3组均采用侧压法充填根管。比较每组根管预备操作时间,及根管充填恰填率。结果机用PT组每个根管预备操作时间明显少于其他两组(P<0.05),机用PT组与手用PT组在根管治疗中根管充填效果差异无统计学意义(P>0.05)。手用PT组根管预备操作时间明显少于不锈钢K型组(P<0.05),手用PT组根管适充率明显高于不锈钢K型组(P<0.05)。结论机用ProTaper在磨牙弯曲根管预备中有明显的优越性,成行更快速高效,省时省力,能获得良好根管成行效果,在临床上得到越来越广泛地青睐认可,提高了口腔根管治疗水平,值得临床普及推广,临床操作中须预防器械折断。
Objective To observe the clinical application effect of Dentsply rotary nikel-titanium file on root canal therapy of the curved molar root canal.Methods 435 premolar with 1 566 root canals were randomly divided into three groups,including group PT NiTi alloy root canal file,hand group PT NiTi alloy root canal file,two were used Crown-down preparation technique,K group of stainless steel K file（ISO standard）root canal preparation,with the step-back technique preparation technology.Three groups were used the lateral condensation technique in root canal filling.Each root canal preparation operation time,and root canal filling and filling rate were compared.Results The machine group PT each root canal preparation operation time was significantly shorter than the other two groups（P〈 0.05）,PT group machine and hand group PT in root canal therapy root canal filling effect had no significant difference（P〉0.05）.Hand with group PT root canal preparation operation time was significantly less than the stainless steel K group（P〈0.05）,hand with group PT root canal filling rate was higher than that of stainless steel K group（P〈 0.05）.Conclusion The machine used ProTaper in curved molar root canal preparation has obvious superiority,makes more efficient,and saves time and labor,can obtain the good effect of root canal in rows,in clinically gets more and more widely favored recognition,improves oral root canal treatment level,which is worth the clinical popularization,and clinical operation must preventing to break device.
出处
《检验医学与临床》
CAS
2012年第13期1570-1571,1573,共3页
Laboratory Medicine and Clinic
