Design and fabrication of complete dentures using CAD/CAM technology

Abstract

The aim of the study was to test the feasibility of using commercially available computer-aided design and computer-aided manufacturing (CAD/CAM) technology including 3Shape Dental System 2013 trial version, WIELAND V2.0.049 and WIELAND ZENOTEC T1 milling machine to design and fabricate complete dentures.The modeling process of full denture available in the trial version of 3Shape Dental System 2013 was used to design virtual complete dentures on the basis of 3-dimensional (3D) digital edentulous models generated from the physical models. The virtual complete dentures designed were exported to CAM software of WIELAND V2.0.049. A WIELAND ZENOTEC T1 milling machine controlled by the CAM software was used to fabricate physical dentitions and baseplates by milling acrylic resin composite plates. The physical dentitions were bonded to the corresponding baseplates to form the maxillary and mandibular complete dentures.Virtual complete dentures were successfully designed using the software through several steps including generation of 3D digital edentulous models, model analysis, arrangement of artificial teeth, trimming relief area, and occlusal adjustment. Physical dentitions and baseplates were successfully fabricated according to the designed virtual complete dentures using milling machine controlled by a CAM software. Bonding physical dentitions to the corresponding baseplates generated the final physical complete dentures.Our study demonstrated that complete dentures could be successfully designed and fabricated by using CAD/CAM.

Poly(methyl metacrylate) Nanocomposites for Two-piece CAD/CAM Solution as an Alternative to Monolithic Removable Prosthesis

“…3D printing technology for complete denture manufacturing was first proposed by Maeda end coworkers in 1994 [10], when the authors used a 3D laser lithography device to additively fabricate shells of removable complete dentures and self-curing acrylic resin was then used to fill the shells and to finally produces the prosthesis. Lately, the commercially available CAD/CAM complete dentures, such as AvaDent digital dentures (Global Dental Science Europe BV, Tilburg, The Netherlands ), were obtained mainly by using subtractive (milling) technology or virtually designed, 3D printed try-in and conventionally processed dentures, such as Dentca CAD-CAM dentures (DENTCA Inc, Torrance, CA, USA), or Pala Digital Dentures (Heraeus Kulzer, GmbH) [11,12]. Several protocols for interim RP complete dentures have been proposed for reducing production cost [13].…”

Evaluation of adaptation of the polylactic acid pattern of maxillary complete dentures fabricated by fused deposition modelling technology: A pilot study

“…When the commercial teeth are bonded onto the recesses of milled denture base, an undercut in the gingival area could result in gaps between some teeth and the corresponding bases, which can affect the accuracy of tooth position in the denture. [ 14 ] Moreover, lack of polymer crosslinking incorporated in commercial teeth may also have reduced strength and hardness. Furthermore, when designing the dentures of a patient with short vertical dimension, insufficient prosthetic space is available for the denture base and the commercial teeth, so that the basal surface of the teeth will pierce the crest of the base, and thus individual sockets in the base for the teeth cannot be generated well in the design software ( Fig 5 ).…”

CAD-CAM en prótesis total. Reporte de caso

“…Las técnicas que integran escáner, programas y fresadoras buscan tratamientos cada vez más ecientes y en un tiempo extraordinariamente menor al de las técnicas convencionales. Así, la robótica en odontología está permitiendo obtener logros sinigual en la clínica, con un número menor de horas consultorio y con mejores materiales (5).…”