Zitzmann Nicola U, Rohner Urs, Weiger Roland, Krastl Gabriel
Clinic for Periodontology, Endodontology, and Cariology, Dental School, University of Basel, Basel, Switzerland.
Int J Prosthodont. 2009 Mar-Apr;22(2):161-7.
The aim of this article is to introduce criteria for planning treatment with a removable dental prosthesis (RDP) in a partially dentate arch, including the indications for placement of dental implants. The retention of RDPs is achieved through clasps, adhesive attachments, crowns, and fixed partial dentures with intra- or extracoronal attachments, telescopes, root caps, and/or prefabricated interradicular retainers. RDP designs vary from a removable partial denture to an overdenture prosthesis. Potential abutment teeth are selected for RDP retention according to their prognosis, their position in the arch, and the planned prosthesis design. Retainer selection mainly depends on the remaining tooth substance, the intra- and intermaxillary relationships, esthetics, and financial aspects. With dental implants as additional retainers, the supportive area for the RDP is increased, the soft tissue load is minimized, and the extension of the base of the prosthesis can be reduced to enhance a patient's comfort. For RDP planning, strategic considerations are needed to determine the appropriate prosthesis design, to select the abutment teeth, and to choose the appropriate retention element for each particular abutment.
本文旨在介绍部分牙列牙弓可摘局部义齿（RDP）修复治疗的计划标准，包括牙种植体植入的适应证。RDP的固位通过卡环、附着体、冠、带冠内或冠外附着体的固定局部义齿、套筒冠、根帽和/或预制的根间固位体来实现。RDP的设计从可摘局部义齿到覆盖义齿假体不等。根据潜在基牙的预后、在牙弓中的位置以及计划的假体设计来选择用于RDP固位的基牙。固位体的选择主要取决于剩余牙体组织、上下颌关系、美观以及经济因素。使用牙种植体作为额外的固位体，可增加RDP的支持面积，使软组织负荷最小化，并可减少义齿基托的伸展以提高患者舒适度。对于RDP修复计划，需要进行策略性考虑，以确定合适的假体设计、选择基牙，并为每个特定基牙选择合适的固位元件。
