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目的:观察牙冠延长术对前牙缺损至龈下的残冠残根修复的临床疗效。方法:对37颗因外伤、龋坏而导致牙断面至龈下的残冠残根实施牙冠延长术后行纤维桩及冠修复,通过临床检查及X线片评价牙龈、牙周、修复体边缘与龈缘的位置关系及纤维桩核的临床效果。结果:修复后随访18个月,35颗牙取得满意效果,2颗牙失败。结论:牙冠延长术后行桩冠修复对前牙缺损至龈下的残根残冠的保留有显著疗效。
Objective: To observe the clinical effect of crown extension on residual crown remodeling of anterior tooth defect to subgingival residual crown. Methods: Twenty-seven crow’s feet with crown and crown were repaired after coronale extension due to trauma and caries, and the results of clinical examination and X-ray examination of the gingiva, periodontal and prosthesis The relationship between the marginal and gingival margin and the clinical effect of fiber post nucleus. Results: After 18 months of follow-up, 35 teeth achieved satisfactory results and 2 teeth failed. CONCLUSION: Post crown crowns with post crown restoration have a significant effect on the preservation of the residual root canals from anterior teeth to subgingival.