methods hemisections were performed on reserved canals of incomplete tooth fracture, complete root fracture and furcation involvement after root canal therapy.
方法选择隐裂、根折或根分叉病变患者,对欲保留牙根进行根管治疗后,行半牙切除术。
objective to investigate masticatory efficiency of molar with furcation involvement after separating roots and prosthesis.
目的探讨分根术后单冠或联冠修复下颌磨牙根分叉病变对咀嚼效率的影响。
levels of glycosaminoglycans in gingival crevicular fluid of patients with periodontal degree ii furcation involvement before and after guided tissue regeneration.
根分叉病变患者引导组织再生治疗术前术后龈沟液中糖氨多糖水平的变化。
conclusion:root trunk concavities may cause furcation involvement and reduce the efficacy of periodontal therapy.
结论:根柱凹陷可能是造成根分叉病变的原因,并可能是导致牙周治疗效果欠佳的原因。
method:46 mandibular molars with furcation involvement were treated by root canal therapy and root canal preparation. then medical canal and distal canal were separated and casted post were made.
方法:将46例较为严重难治性根分叉病变下颌磨牙经完善根管治疗后分离近、远中根,根管预备后制备铸造桩核,以类似前磨牙形态进行桩冠修复。