连续波热牙胶充填技术根尖封闭性能的评估  

Evaluation of apical sealability of continuous wave of condensation technique

作　　者：贡艳宏[1] 刘卫红[1] 

机构地区：[1]南京医科大学口腔医学研究所南京医科大学口腔医学院牙体牙髓科,南京210029

出　　处：《口腔医学》2007年第3期143-145,共3页Stomatology

摘　　要：目的体外实验比较不同器械预备根管后连续波热牙胶根管充填技术的根尖封闭能力。方法离体双根管上颌前磨牙随机分为机用ProFile预备组和不锈钢K锉预备组,分别采用连续波热牙胶充填技术和冷侧压法进行根管充填,用染料渗透法和透明标本法测量根尖微渗漏,评价各组根尖封闭能力。结果各组根尖微渗漏距离无统计学差异(P>0.05)。结论连续波热牙胶充填技术与冷牙胶侧方加压充填技术的根尖封闭能力无显著性差异;对直根管和轻度弯曲的根管,不同器械根管预备后其根管充填效果无明显影响。Objective To evaluate the apical sealability of different combinations of root canal preparation and continuous wave of condensation technique in vitro. Methods Twenty-four extracted maxillary premolars with two canals were randomly divided into four equal groups of ten canals,instrumenting and ohturating according to different techniques. Apical microleakage was determined using dye penetration and clearing technique,and measured by stereomicroscope. Results No statistical differences were found between any of the preparation/falling combinations in terms of apical microleakage（ P 〉 0.05）. Conclusions Apical sealing ability between continuous wave technique and cold lateral compaction was showing no significant differences; apical sealing ability was not influenced by preparation technique for straight or slight-waved canals.

关 键 词：连续波充填技术 机用镍钛器械 微渗漏 染料渗透法 透明标本法 

分 类 号：R781.05[医药卫生—口腔医学]