Department of Periodontics and community Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
Department of Oral Medicine and Diagnostic Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
J Oral Implantol. 2024 Feb 1;50(1):18-23. doi: 10.1563/aaid-joi-D-23-00038.
Bone augmentation is often required before the installation of dental implants. Here, we report a case for a patient who previously received bone augmentation at the upper right jaw using a xenogenic graft, followed by successful implant installation. Seven years later, the patient presented with mucosal fenestration with bone exposure at the area and gave a history of a recent diagnosis of cutaneous lichen planus. Several attempts were made to manage the situation, and finally, we resorted to connective tissue graft placement at the site. A piece of bone was sent for histologic evaluation, where the results indicated the presence of un-resorbed graft material surrounded by inflammatory cells, with no evidence of bone formation in the area. The case presents histologic evidence for the lack of new bone formation using xenograft over the evaluation period. The case also shows lichen planus, a possible cause for oral complication for patients undergoing augmentation and implant installation.
骨增量通常是在安装牙种植体之前进行的。在这里，我们报告了一例患者，该患者先前在上颌右侧使用异种移植物进行了骨增量，随后成功安装了种植体。 7 年后，该患者出现了粘膜开窗，并有骨暴露，并有近期诊断为皮肤扁平苔藓的病史。我们曾多次尝试对此进行处理，最终在该部位进行了结缔组织移植。将一块骨头送去进行组织学评估，结果表明存在未被吸收的移植物材料，周围有炎症细胞，该区域没有骨形成的证据。该病例提供了在评估期内使用异种移植物缺乏新骨形成的组织学证据。该病例还显示了扁平苔藓，这可能是接受骨增量和种植体安装的患者发生口腔并发症的原因。
