Sadeghi Mahdi, Ghavimi Mohamad Ali, Khorshidi Reza, Moini Faeze, Ghoreishizadeh Arezou
Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran.
Department of Periodontology, Faculty of Dentistry, Ardabil University of Medical Sciences, Ardabil, Iran.
J Dent Res Dent Clin Dent Prospects. 2022 Summer;16(3):186-189. doi: 10.34172/joddd.2022.031. Epub 2022 Nov 15.
Studies have shown a significant relationship between the width and thickness of keratinized gingiva around the implant and changes in marginal bone level, with a significant effect on the health and esthetic of tissues around the implant, especially in the anterior region of the maxilla, which is an esthetic area. Ten patients referring to the Faculty of Dentistry seeking implant placement in the anterior maxilla were included in the study. The connective tissue of the palatal gingiva of the surgical site was folded to the buccal aspect with the buccal base, and the thickness and width of keratinized gingiva around the buccal surface of each implant were measured in three time intervals, including before surgery and 6 and 12 weeks after surgery. Based on the results of the Kolmogorov-Smirnov test, Friedman test and repeated-measures ANOVA were used to analyze the data. The intervention significantly affected changes in the gingival thickness. After the intervention, gingival thickness significantly increased compared to the baseline (<0.05). The results also showed that the intervention did not significantly affect the width of keratinized gingiva. The width of keratinized gingiva at baseline was not significantly different from the two time intervals after intervention (>0.05). Buccal-based modified palatal flap in anterior maxillary implants increased the thickness of keratinized gingiva, with no significant effect on the keratinized gingiva width.
研究表明，种植体周围角化龈的宽度和厚度与边缘骨水平的变化之间存在显著关系，对种植体周围组织的健康和美观有显著影响，尤其是在上颌前部这个美学区域。本研究纳入了10名到牙科学院寻求上颌前部种植体植入的患者。手术部位腭侧牙龈的结缔组织与颊侧基部一起向颊侧折叠，在三个时间点测量每个种植体颊侧表面周围角化龈的厚度和宽度，包括手术前、手术后6周和12周。基于柯尔莫哥洛夫-斯米尔诺夫检验结果，采用弗里德曼检验和重复测量方差分析来分析数据。干预对牙龈厚度的变化有显著影响。干预后，牙龈厚度与基线相比显著增加（<0.05）。结果还表明，干预对角化龈宽度没有显著影响。基线时角化龈宽度与干预后的两个时间点没有显著差异（>0.05）。上颌前部种植体的颊侧基部改良腭瓣增加了角化龈的厚度，对角化龈宽度没有显著影响。
