口腔疾病防治2017，Vol.25Issue(5)：336-340,5.DOI:10.12016/j.issn.2096-1456.2017.05.013
纤维桩核结构长度影响因素的文献回顾
Factors affecting the length of fiber post and core structure:a literature review
摘要
Abstract
An ideal balance between the post length within root and the coronal extension should exist. Some theo-ries advocated the use of the longest post as possible as the apical seal is not disturbed. Others advocated that the post should be longer than the crown or that the post should be a certain fraction of the length of the root. The conventional post length has been equal to 2/3-3/4 of the root length from half a century ago. Most of these theories have emphasized the post length in order to achieve sufficient retention and rigidity for coronal restoration. However, dental materials are evolving.With the use of fiber post and resin cement, stress distribution and post retention are improved over convention-al metal post and zinc phosphate or glass-ionomer cement. Therefore, with improved bonding strength of fiber post, the post length within root should be minimized to maintain sufficient coronal rigidity. Factors affecting fracture resistance balance of a post-and-core system include the amount of Ferrule height (FH), Post length in root (PLIR), Post length in bone (PLIB), Abutment height (AH), Core length (CL) and Post length out of bone (PLOB). In view of the factors men-tioned above, this paper investigated the mechanical factorsin a post-and-core system with literature review.关键词
纤维桩/桩长度/牙本质肩领/预备体高度/固位力Key words
Fiber post/Post length/Ferrule/Abutment height/Retention分类
医药卫生引用本文复制引用
林捷,林珍香..纤维桩核结构长度影响因素的文献回顾[J].口腔疾病防治,2017,25(5):336-340,5.基金项目
国家自然科学基金青年项目(81300907) （81300907）
