临床上经过完善根管治疗的牙齿,在牙体组织缺损较多时,传统采用金属桩核进行前期修复,但金属铸造桩核存在着制作周期长,患者复诊次数多,金属离子局部释放影响美观以及影响后期磁共振检查[1]。而且其刚性强,弹性模量大,易造成根折。玻璃纤维桩作为一种新型桩核材料,操作方便,具 Clinically, the root canal treatment after perfecting the teeth, dental defects in the more teeth, the traditional use of metal post to carry out pre-repair, but there is a long metal casting post-core cycle, the number of patient referrals, the local release of metal ions affect the appearance and beauty Impact of late magnetic resonance imaging [1]. And its strong rigidity, elastic modulus, easy to cause root fracture. Fiberglass pile as a new type of post-core materials, easy to operate, with