Dentin permeability: effects of cavity varnishes and bases.
Dentin permeability: effects of cavity varnishes and bases.
复制标题
牙本质渗透性：空腔清漆和基质的影响。
DOI：
10.1016/0022-3913(85)90637-7
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
Kepler,EE
中科院分区：
文献类型：
--
作者：
Pashley,DH;O'Meara,JA;Williams,EC;Kepler,EE
腔衬材料用于保护牙髓在修复程序后免受可能的伤害。它们旨在提供屏障，防止从修复材料中释放的物质，水泥的酸性成分或某些修复材料的脱水作用。3衬里材料还应防止细菌及其产物渗透洞缘和牙本质小管，目前认为细菌及其产物是导致修复材料下大多数牙髓炎症的原因。4-6许多技术和程序已被用来评估洞衬材料的渗透性。用各种材料处理的牙齿的牙髓的组织学检查已经使用了很多年。模具，银硝酸盐，放射自显影研究已被广泛使用。2~ 9-'9不幸的是，大多数以前的工作一直是定性或半定量充其量。几份报告描述了定量技术，可以准确地确定内衬材料减少边缘渗漏和/或牙本质渗透性的有效性。20-23作为牙质渗透性特征的系统研究的一部分，已经开发了两种定量技术来精确测量牙质渗透性。本报告描述了使用这些技术来评估几种洞漆和基底降低牙本质渗透性的能力。
C avity lining materials are used to protect the pulp from possible injurious effects after restorative procedures. They are intended to provide a barrier against substances liberated from restorative materials, acidic components of cements, or the dehydrating effects of some restorative materials.‘-3 Lining materials should also prevent penetration of cavity margins and dentinal tubules by bacteria and their products, which are currently thought to cause most of the pulpal inflammation seen under restorative materials. 4-6 Many techniques and procedures have been used to evaluate the permeability of cavity lining materials. Histologic examination of the pulps of teeth treated with various materials has been used for many years.‘,* Dies, silver nitrate, and autoradiographic studies have been widely used. 2~ 9-‘9Unfortunately, most of the previous work has been qualitative or semiquantitative at best. Several reports described quantitative techniques that can accurately determine the efficacy of lining materials to reduce marginal leakage and/or dentin permeability. 20-23 As part of a systematic study of the permeability characteristics of dentin, two quantitative techniques have been developed to accurately measure dentin permeability. This report describes the use of these techniques in evaluating the ability of several cavity varnishes and bases to reduce dentin permeability.