Unit of Periodontology, Department of Estomatology, Santiago de Compostela University, Santiago de Compostela, Spain.
Periodontol 2000. 2019 Feb;79(1):151-167. doi: 10.1111/prd.12253.
Recent systematic reviews have shown that the survival rate of immediate implant placement is similar to those with a delayed approach. However, preclinical models and human studies have shown that immediate implant placement per se does not preserve the anatomy of the alveolus, mainly at the buccal bone crest, leading to bony dehiscences and subsequently to soft-tissue recession, with a great impact on esthetic outcomes. On the other hand, preclinical and human studies have identified factors that may prevent bone resorption after immediate implant placement, such as anatomical/biological (alveolus, gingival biotype, periapical/periodontal pathology) and surgical/restorative ones (implant diameter and positioning, flap/flapless, bone and connective tissue grafts, immediate loading/provisionalization, antibiotics). Taking these factors together and with a critical treatment plan made by an expert professional, the immediate treatment approach could be possible and beneficial for the patient.
最近的系统评价表明,即刻种植体植入的存活率与延迟种植体植入的存活率相似。然而,临床前模型和人体研究表明,即刻种植体植入本身并不能保持牙槽骨的解剖结构,主要是颊侧牙槽嵴,导致骨裂开,随后出现软组织退缩,对美观效果有很大影响。另一方面,临床前和人体研究已经确定了一些可以防止即刻种植体植入后骨吸收的因素,如解剖/生物学因素(牙槽骨、牙龈生物型、根尖/牙周病)和手术/修复因素(种植体直径和定位、有瓣/无瓣、骨和结缔组织移植、即刻负载/暂时修复、抗生素)。综合考虑这些因素,并由专家制定出严格的治疗计划,即刻治疗方法对患者来说是可行且有益的。