Kancyper S, Sierraalta M, Razzoog M E
Prosthodontics, University of Michigan, Ann Arbor, Mich. USA.
J Prosthet Dent. 2000 Oct;84(4):400-2. doi: 10.1067/mpr.2000.110253.
All-ceramic restorations may have limitations when used in combinations with other treatment modalities. Removable partial denture (RPD) abutment crowns are typically shaped to provide guide planes, rest seats, and retentive areas. Porcelain-to-metal crowns are routinely fabricated with retentive contours in the veneering porcelain, but until recently, the contours of the other portions of the restoration were developed in metal. This article describes the fabrication of all-ceramic crowns for RPDs with rest seats and guide planes in densely sintered aluminum oxide and retentive areas in veneering porcelain. Within the limitations outlined, this procedure allows the practitioner to use all-ceramic crowns in situations previously reserved for metal or metal-ceramic restorations.
全瓷修复体与其他治疗方式联合使用时可能存在局限性。可摘局部义齿（RPD）基牙冠的形状通常要提供导平面、支托凹和固位区域。金属烤瓷冠通常在饰面瓷中制作固位外形，但直到最近，修复体其他部分的外形仍在金属中制作。本文描述了用于RPD的全瓷冠的制作，其支托凹和导平面采用致密烧结氧化铝制作，固位区域采用饰面瓷制作。在所述的局限性范围内，该方法使从业者能够在以前仅适用于金属或金属烤瓷修复体的情况下使用全瓷冠。
