Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy.
Department of Periodontics & Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA.
J Periodontol. 2019 Oct;90(10):1116-1124. doi: 10.1002/JPER.18-0616. Epub 2019 Jun 3.
The incidence of a peri-implant soft tissue dehiscence/deficiency (PSTD) is not a rare finding. Despite multiple previous attempts aimed at correcting the PSTDs, a classification of these conditions has not yet been proposed. This lack in the literature may also lead to discrepancies in the reported treatment outcomes and thus misinform the clinician or the readers. The aim of the present article was therefore to present a classification of peri-implant PSTD at a single implant site.
Four classes of PSTDs were discussed based on the position of the gingival margin of the implant-supported crown in relation to the homologous natural tooth. In addition, the bucco-lingual position of the implant head was also taken into consideration. Each class was further subdivided based on the height of the anatomical papillae.
Subsequently, for each respective category a surgical approach (including bilaminar techniques, the combined prosthetic-surgical approach or soft tissue augmentation with a submerged healing) was also suggested.
This paper provides a new classification system for describing PSTDs at single implant sites, with the appropriate recommended treatment protocol.
种植体周围软组织裂开/缺损（PSTD）的发生率并不少见。尽管之前已经进行了多次尝试来纠正 PSTD，但这些情况尚未被分类。文献中的这种缺失也可能导致报告的治疗结果存在差异，从而误导临床医生或读者。因此，本文旨在提出一种在单个种植体部位的种植体周围 PSTD 的分类方法。
根据种植体支持的牙冠的牙龈边缘相对于同名天然牙的位置，讨论了 PSTD 的四个类别。此外，还考虑了种植体头部的颊舌位置。每个类别根据解剖学乳头的高度进一步细分。
随后，针对每个相应类别，还提出了一种手术方法（包括双层技术、联合修复-手术方法或软组织增量与覆盖愈合）。
本文提供了一种用于描述单个种植体部位 PSTD 的新分类系统，并提出了相应的推荐治疗方案。
