| 摘要: |
| 目的 评价樟脑酚、甲醛甲酚作为根管消毒剂对树脂基质根充糊剂AHPlus 根管封闭性能的影响。方法 收集完整单根管前牙或前磨牙300 颗，分成A、B、C 3组,每组100 颗；用PROTAPER universal 镍钛锉预备根管后,分别用樟脑酚、甲醛甲酚和氢氧化钙糊剂封药消毒1周，AHPlus 糊剂加4%锥度牙胶尖进行根管充填，3组患者均采用冷牙胶侧方加压法恰填根管。将根管充填后的全部标本置于India Ink 染料中进行根尖微渗漏实验,用染料渗透法结合透明体标本制作技术,检测染料渗透线长度，比较以上3种根管消毒剂对树脂基质根管充填材料AHPlus 根管封闭性能的影响差异。结果 A 组牙齿微渗漏值为（1.01±0.15）mm，B 组牙齿微渗漏值为（0.97±0.18）mm，C 组牙齿微渗漏值为（0.99±0.16）mm；3 组牙齿微渗漏值两两比较差异均无统计学意义（均P＞0.05）。结论 樟脑酚、甲醛甲酚根管消毒对树脂基质根充糊剂AHPlus 根管封闭性能无明显影响。 |
| 关键词: Sealing Disinfection Phencamphor Formocresol AHPlus Resin based root canal sealer |
| DOI： |
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| Effect of phencamphor and formocresol on apical sealing with resin-based root canal sealer AHPlus |
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YANG Weijiang1,2,3,4,5,6, DAI Jie, CHEN Xiaodou, RUAN Fangcao, XIANG Zhangyi, ZHANG Yongping, WANG Wenmin
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1.封闭;2.消毒;3.樟脑酚;4.甲醛甲酚;5.AHPlus;6.树脂基质根充糊剂
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| Abstract: |
| Objective To evaluate the effect of phencamphor (CP) and formocresol (FC) as root canal disinfector on apical sealing with resin-based root canal sealer AHPlus. Methods Three hundred teeth with single root canal were collected and divided into three groups with 100 teeth in each group. All root canals were prepared with PROTAPER universal system and then the were disinfected by CP(group A), FC (group B) and calciumhydroxide paste (group C), respectively. All root canals were filled with laterally condensed 4% taper gutta percha and AHPlus paste as sealer one week later. All teeth were demineralized, dehydrated and cleared, then the apical microleakage was measured by dye penetration one week after root canal treatment. Results The length of microleakage in groups A, B and C were (1.01±0.15)mm, (0.97±0.18)mm and (0.99±0.16) mm, respectively and there was no statistically significant difference among three groups (P ＞0.05). Conclusion Phencamphor and formocresol as root canal disinfector do not affect the sealing ability of AHPlus. |
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