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目的:探讨两种排龈方法在前牙烤瓷冠修复中的临床应用效果。方法:采取相同牙位对照法,随机采用单线排龈法(97颗牙)与双线排龈法(97颗牙),就牙体预备质量、牙龈组织状况、印模质量、模型质量4个方面进行评价。结果:两种排龈方法均可以满足临床制取印模的需要,但是双线排龈法临床效果优于单线排龈法。结论:双线排龈法可保证基牙预备后获取精确印模,达到满足前牙精密修复体的制作和美观的要求。
Objective: To explore the clinical application of two methods of gingival retraction in the restoration of porcelain fused to the anterior. Methods: The same dental position control method was adopted, and single-row gingival retraction (97 teeth) and double-line gingival retraction (97 teeth) were randomly selected to evaluate the quality of dental preparation, gingival tissue, impression quality and model quality Evaluation. Results: The two methods of gingival retraction can meet the need of clinical impression making, but the clinical effect of double gingival retraction is better than single gingival retraction. Conclusion: The double-row gingival retraction method can ensure accurate impressions after abutment preparation to meet the requirements of the production and aesthetic appearance of anterior precision implants.