Kim Bum-Soo, Kim Young-Kyun, Yun Pil-Young, Yi Yang-Jin, Lee Hyo-Jeong, Kim Su-Gwan, Son Jun-Sik
Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, GwangJu City, South Korea.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2009 Mar;107(3):e24-8. doi: 10.1016/j.tripleo.2008.12.010.
The purpose of this study was to evaluate the responses of peri-implant tissue in the presence of keratinized mucosa.
A total of 276 implants were placed in 100 patients. From the time of implant placement, the average follow-up observation period was 13 months. The width of keratinized mucosa was compared and evaluated through the gingival inflammation index (GI), plaque index (PI), the pocket depth, mucosal recession, and marginal bone resorption.
The GI, PI, and pocket depth in the presence or absence of the keratinized gingiva did not show statistically significant differences. However, mucosal recession and marginal bone resorption experienced statistically significant increases in the group of deficient keratinized mucosa. Based on implant surface treatments, the width of keratinized gingiva and crestal bone loss did not show a significant difference.
In cases with insufficient keratinized gingiva in the vicinity of implants, the insufficiency does not necessarily mediate adverse effects on the hygiene management and soft tissue health condition. Nonetheless, the risk of the increase of gingival recession and the crestal bone loss is present. Therefore, it is thought that from the aspect of long-term maintenance and management, as well as for the area requiring esthetics, the presence of an appropriate amount of keratinized gingiva is required.
本研究的目的是评估在存在角化黏膜的情况下种植体周围组织的反应。
共100例患者植入276颗种植体。从种植体植入时起，平均随访观察期为13个月。通过牙龈炎症指数（GI）、菌斑指数（PI）、牙周袋深度、黏膜退缩和边缘骨吸收来比较和评估角化黏膜的宽度。
存在或不存在角化牙龈时，GI、PI和牙周袋深度均未显示出统计学上的显著差异。然而，在角化黏膜不足的组中，黏膜退缩和边缘骨吸收有统计学上的显著增加。基于种植体表面处理，角化牙龈宽度和牙槽嵴骨丧失未显示出显著差异。
在种植体附近角化牙龈不足的情况下，这种不足不一定会介导对卫生管理和软组织健康状况的不利影响。尽管如此，存在牙龈退缩和牙槽嵴骨丧失增加的风险。因此，从长期维护和管理以及美学需求区域的角度来看，需要存在适量的角化牙龈。
