Bramanti Ennio, Norcia Antonio, Cicciù Marco, Matacena Giada, Cervino Gabriele, Troiano Giuseppe, Zhurakivska Khrystyna, Laino Luigi
Department of Human Pathology, School of Dentistry, University of Messina, Messina.
Dental Clinic Torino, Collegno, Turin.
J Craniofac Surg. 2018 Jun;29(4):1037-1041. doi: 10.1097/SCS.0000000000004419.
The aim of this randomized controlled trial was to evaluate the survival rate, the marginal bone level, and the aesthetic outcome; at 3 years' follow-up, of dental implants placed into a high-esthetic aesthetic zone by comparing 2 techniques of postextraction implant with immediate loading: the socket shied technique and the conventional insertion technique.Several clinical studies suggested that the avulsion of a dental element causes dimensional alterations of both soft and hard tissues at the postextractive site. To increase the aesthetic outcomes, the "socket-shield technique" has been proposed. This method involves maintaining the vestibular root portion and immediate insertion of the dental implant in close proximity to the root.Patients enrolled in this study were randomized to receive a postextraction implant in the aesthetic zone, either with the socket shied technique or with the conventional insertion technique. Implant survival, marginal bone level, and the pink aesthetic score were the outcomes evaluated.Implant survival rate was 100% in both the groups at 3 years. Implants inserted with the socket shield technique showed better values of both marginal bone level and pink aesthetic score (P < 0.05).Although such preliminary results need to be further confirmed, the socket shield technique seems to be a safe surgical technique that allows an implant rehabilitation characterized by better aesthetic outcomes.
牙槽窝屏蔽技术和传统植入技术，评估在高美学区域植入的牙种植体在3年随访时的存活率、边缘骨水平和美学效果。多项临床研究表明，牙齿拔除会导致拔牙部位软硬组织的尺寸改变。为了提高美学效果，有人提出了“牙槽窝屏蔽技术”。该方法包括保留前庭根部分，并将牙种植体紧邻牙根即刻植入。本研究纳入的患者被随机分配接受美学区域的拔牙后种植，采用牙槽窝屏蔽技术或传统植入技术。评估的结果包括种植体存活率、边缘骨水平和粉色美学评分。两组在3年时的种植体存活率均为100%。采用牙槽窝屏蔽技术植入的种植体在边缘骨水平和粉色美学评分方面均显示出更好的值（P<0.05）。尽管这些初步结果需要进一步证实，但牙槽窝屏蔽技术似乎是一种安全的外科技术，能够实现具有更好美学效果的种植修复。
