Post-and-core crown is one of the most common forms of restoration of tooth after root canal therapy (RCT). Infection control is the core objective of RCT, which is usually well realized by endodontists. However, many prosthodontists often neglect the infection control of the tooth and the maintenance of the curative effect of RCT during the process of post-and-core crown, which may lead to the failure of the final restoration. The concept of integrated crown-root treatment advocated recently requires clinicians to consider the RCT and final restoration as a whole, rather than simply divided into two parts-endodontic treatment and restorative treatment. As the core content of integrated crown-root treatment, infection control should be taken seriously by clinicians and implemented throughout the whole treatment process, especially in the restorative treatment that is easily overlooked after RCT. Therefore, this article describes the infection control of post-and-core crown restoration, classifies the tooth requiring post-and-core crown restoration, and puts forward the measures of infection control before and during post-and-core crown restoration, in order to provide reference and guidance for clinical practice.
桩核冠修复是根管治疗后的患牙最常见的修复形式之一。感染控制是根管治疗的核心目标，口腔内科医生通常在根管治疗中能很好的落实和实现，而很多修复医生在后期的桩核冠修复中往往忽视对患牙的感染控制，忽视对根管治疗疗效的维持，这可能导致最终修复的失败。近来提倡的冠根一体化治疗理念要求临床医生将患牙从根管治疗到最终修复进行整体的考虑，而非简单地分为内科治疗和修复治疗两个部分。感染控制作为冠根一体化中的核心内容，应该被临床医生重视并落实到整个治疗环节中，特别是在根管治疗完成后的修复治疗中。因此，本文对桩核冠修复的感染控制进行阐述，对需行桩核冠修复的患牙进行分类，并提出桩核冠修复前和修复中感染控制的措施，以期为临床提供参考和指导。.
Keywords: apical sealing; coronal sea-ling; infection control; post-and-core crown restoration; timing of the restoration.