Effect of periodontal root planing on dentin permeability.
Effect of periodontal root planing on dentin permeability.
复制标题
牙周根面平整术对牙本质通透性的影响。
DOI：
10.1111/j.1600-051x.1993.tb00714.x
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发表时间：
1993
影响因子：
6.7
通讯作者：
Pashley,DH
中科院分区：
文献类型：
--
作者：
Fogel,HM;Pashley,DH
本研究的目的是定量研究根面平整对体外培养的人根牙本质通透性的影响。使用未萌出的第三磨牙。拔除牙冠，并用牙根制成纵向切片。用液体渗滤法测定了根面平整、酸蚀和草酸钾处理前后牙本质的水力传导性。结果表明，牙根平整可形成一层涂抹层，降低牙本质下牙本质的渗透性，但这一涂抹层是不稳定的，因此，牙根平整最终可能导致牙本质渗透性增加以及相关的敏感牙本质的后遗症，细菌侵入小管，减少牙周再附着和牙髓刺激。
The purpose of this study was to quantitate the effects of root planing on the permeability of human root dentin in vitro. Unerupted 3rd molars were used. The crowns were removed and longitudinal slices made of the root. The hydraulic conductance of the root dentin was measured before and after root planing, acid etching and potassium oxalate application using a fluid filtration method. The results showed that root planing creates a smear layer that reduces the permeability of the underlying dentin, However, this smear layer is acid labile, Thus, root planing may ultimately cause increased dentin permeability and the associated sequelae of sensitive dentin, bacterial invasion of tubules, reduced periodontal reattachment and pulpal irritation.