de Mendonça Arthur Furtado, Furtado de Mendonça Mario, White George Shelby, Sara Georges, Littlefair Darren
Department of Prosthodontics, Fluminense Federal University, Niterói, RJ, Brazil.
Department of Prosthodontics, Columbia University College of Dental Medicine, New York, NY, USA.
Case Rep Dent. 2016;2016:1259581. doi: 10.1155/2016/1259581. Epub 2016 Nov 16.
The incorporation of computer-aided design/computer-aided manufacturing (CAD/CAM) technology into complete denture fabrication brings about several advantages to the fabrication process, providing better predictability of the desired outcomes and high accuracy of denture fit, mainly because the milling of prepolymerized acrylic resin eliminates the shrinkage of the acrylic base. Also, there is a decrease in the porosity when compared to a conventionally processed denture, and consequently there is a decrease in the retention of on the denture base. The presented workflow for complete denture fabrication presents a totally wax-free manufacturing process, combining rapid prototyping (RP) and rapid milling. With the presented technique, the maxillomandibular relation (MMR) and the ideal setup of the tooth arrangement are developed by using occlusion rims and trial setup made with RP. For the definitive final denture, the denture base and the basal surfaces of the conventional denture teeth were milled according to the individual clinical situation. Posteriorly, the teeth were adapted and bonded into the milled sockets of the milled base.
将计算机辅助设计/计算机辅助制造（CAD/CAM）技术融入全口义齿制作过程给制作工艺带来了诸多优势，能更好地预测预期结果并提高义齿贴合的准确性，这主要是因为预聚合丙烯酸树脂的铣削消除了丙烯酸基托的收缩。此外，与传统加工的义齿相比，孔隙率有所降低，因此义齿基托上的吸附力也有所下降。所展示的全口义齿制作流程呈现出一种完全无蜡的制造工艺，它结合了快速成型（RP）和快速铣削技术。采用该技术时，通过使用咬合堤和用RP制作的试排牙来确定上下颌关系（MMR）和理想的排牙设置。对于最终的全口义齿，根据个体临床情况对义齿基托和传统义齿牙齿的基底面进行铣削。在后部，将牙齿适配并粘结到铣削基托的铣削牙槽窝中。
