Azzi Robert, Etienne Daniel, Takei Henry, Fenech Pierre
Department of Periodontology, University of Paris VI, France.
Int J Periodontics Restorative Dent. 2002 Feb;22(1):71-7.
With the present knowledge of osseointegration and implants, it seems reasonable to hope that implants will be placed in a way that provides optimal function, esthetics, and phonetics. The esthetic objectives of implant dentistry should be similar to those of conventional prosthodontics, and the esthetics for implants begins with implant placement. Often, because of limitations in position and/or quality of bone, implants may have to be placed in locations that are not ideal in the axial position. Preangulated and customized abutments have been used in some situations primarily to salvage poorly placed implants. An adequate zone of attached gingiva is also necessary around these restorations to hide the periimplant restoration boundary and provide for a good soft tissue profile, which is the essence of esthetics. There are numerous situations where implants have been placed in areas of minimal keratinized gingiva. The crown margin around these areas of thin gingiva is usually supragingival; therefore, the esthetic appearance is poor Three case reports, which are part of a preliminary study, outline a plastic surgical technique of tunneling/pouching and the use of submerged connective tissue grafts. This technique allows the thickening of the existing gingiva but is also useful for reconstructing interdental papillae around implant-supported restorations.
基于目前对骨结合和种植体的认识,期望种植体能以一种提供最佳功能、美学效果和语音功能的方式植入似乎是合理的。种植义齿的美学目标应与传统修复学的目标相似,种植体的美学始于种植体植入。通常,由于骨位置和/或质量的限制,种植体可能不得不植入轴向位置不理想的区域。在某些情况下,主要为挽救位置不佳的种植体而使用了预成角度和定制的基台。在这些修复体周围还需要有足够的附着龈区域,以隐藏种植体周围修复体的边界并提供良好的软组织外形,这是美学的关键。在许多情况下,种植体被植入角化龈最少的区域。这些薄龈区域周围的冠边缘通常位于龈上;因此,美学外观较差。作为一项初步研究一部分的三例病例报告概述了一种隧道/袋状成形的整形手术技术以及使用潜行结缔组织移植的方法。该技术不仅能使现有牙龈增厚,还可用于重建种植体支持修复体周围的龈乳头。