Abou-Arraj Ramzi V, Majzoub Zeina A K, Holmes Carolyn M, Geisinger Maria L, Geurs Nicolaas C
Department of Periodontology, School of Dentistry, University of Alabama at Birmingham, Birmingham, AL.
Private practice, Padova, Italy.
Clin Adv Periodontics. 2015 May;5(2):131-139. doi: 10.1902/cap.2014.140014.
Focused Clinical Question In healthy patients who receive surgical crown lengthening, how much healing time should be allowed for the positional changes of the gingival margin before final restoration? Clinical Scenario A 59-year-old woman presented to the University of Alabama at Birmingham School of Dentistry in August 2011 for replacement of her existing porcelain-fused-to-metal crowns on the maxillary anterior teeth for esthetic reasons. Clinical examination revealed a diagnosis of developmental mucogingival deformity manifested by gingival excess in the maxillary anterior sextant. An esthetic evaluation was performed and identified excessive gingival display attributable to short clinical crowns and excluded vertical maxillary excess and short or hypermobile upper lip as etiologic factors. After signing a written informed consent, the patient underwent an esthetic crown lengthening procedure to correct this mucogingival deformity, followed by prosthodontic rehabilitation. The patient and restoring dentist were concerned with the healing time that should elapse before the teeth were permanently restored. Figures 1 through 5 illustrate the initial presentation of the patient, surgical crown lengthening procedure, and final restorations.
在接受外科牙冠延长术的健康患者中，最终修复前牙龈边缘位置改变需要留出多长的愈合时间？临床病例：一名59岁女性于2011年8月前往阿拉巴马大学伯明翰分校牙科学院，因美观原因要求更换上颌前牙现有的烤瓷熔附金属冠。临床检查诊断为发育性黏膜牙龈畸形，表现为上颌前牙区牙龈增生。进行了美学评估，确定牙龈过度外露是由于临床牙冠过短所致，并排除了垂直上颌骨过长及上唇过短或活动度过大等病因。在签署书面知情同意书后，患者接受了美学牙冠延长术以纠正这种黏膜牙龈畸形，随后进行了修复治疗。患者及修复牙医关注牙齿永久修复前应经过的愈合时间。图1至图5展示了患者的初始表现、外科牙冠延长术过程及最终修复情况。
