Ultraconservative fixed partial denture: esthetic and preservation of dental structure

The oral rehabilitation can be made with several ways with the objective to reestablish the masticatory function and the esthetic of the patient. The aim of this clinical case is to present a different type of fixed partial denture, as alternative option to the dental surgeon, showing particularities like indications, contraindications, advantages, disadvantages and technical procedures necessary to its fabrication. The sequential presentation of the realized procedures emphasized the unique aspects of the dental preparation, impression techniques, and cautions during metal structures and ceramic try-in procedures, and esthetic overlay on the metal with composite resin. As a result, it could be observed that the ultraconservative fixed partial denture required lesser removal dental structure, re-established the esthetic and the occlusion of the patient. Finally, it can be concluded that the ultraconservative fixed partial denture is a treatment option to be used in the small prosthetic space with success both mechanically and esthetically.口腔修复（oral rehabilitation）可通过多种方式实施，旨在恢复患者的咀嚼功能与美学效果。本临床病例旨在为牙科医师介绍一款新型固定局部义齿（fixed partial denture）修复方案，详细阐述其适应证（indications）、禁忌证（contraindications）、优缺点及制作所需的技术流程。本次展示的系列操作步骤，重点突出了牙体预备（dental preparation）、印模技术（impression techniques）、金属支架与瓷试戴（ceramic try-in）过程中的注意事项，以及采用复合树脂（composite resin）在金属基底上进行美学饰面的独特操作要点。结果表明，该超微创固定局部义齿（ultraconservative fixed partial denture）对牙体组织的磨除量更少，可有效恢复患者的美学效果与咬合（occlusion）关系。综上可得出结论：超微创固定局部义齿是一种适用于小型修复间隙的治疗方案，其机械性能与美学表现均较为优异。