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桩核冠修复是临床大面积牙体缺损的主要修复方法,桩腔预备是修复的第一步,预备过程中保持剩余根管充填物的完整性对于根尖封闭有重要意义。目前的研究表明:桩腔预备对根尖封闭性的影响与桩腔预备时机、剩余根管充填物长度和桩腔预备技术等有关。微渗漏量作为评价根尖封闭效果的重要指标,检测方法种类繁多,包括染色法、流体滤过(传输)系统、细菌(毒素)检测法、葡萄糖定量检测法等,且各有利弊。本文就桩腔预备对根尖封闭性的影响及检测方法的研究进展作一综述。
Post-core crown restoration is a major repair method for large-scale clinical dental defects. Pre-pile preparation is the first step to repair. It is important to maintain the integrity of the remaining root canal filling during the preparation process. The current research shows that the influence of pile preparation on apical sealability is related to the timing of pile preparation, the length of remaining root canal filling and the technique of pile preparation. Microleakage, as an important index to evaluate the apical sealing effect, has a great variety of detection methods, including dyeing method, fluid filtration system, bacterial (toxin) detection method and quantitative glucose detection method. In this paper, the effects of pile preparation on apical sealing and the progress of detection methods are reviewed.