桩冠是利用金属或非金属冠桩插入根管内以获得固位的一种冠修复体。由于牙髓治疗广泛而有效地开展 ,桩冠修复有了可靠的基础 ,应用范围也在扩大 ,大量严重缺损的患牙和残根得以保留和修复。根据制作方法的不同 ,冠桩可分为成品不锈钢冠桩、简单冠桩和个别铸造冠桩。虽然国内常 Crown is the use of metal or non-metallic crowns inserted into the root canal to obtain a retention of a crown prosthesis. Due to the extensive and effective treatment of dental pulp, crown restoration has a reliable foundation and its application scope is also expanding. A large number of severely damaged teeth and residual roots are preserved and repaired. According to different production methods, crown piles can be divided into finished stainless steel crown piles, simple crown piles and individual casting crown piles. Although domestic often