scholarly journals The computer-aided design and rapid prototyping fabrication of removable partial denture frameworks

2005 ◽  
Vol 219 (3) ◽  
pp. 195-202 ◽  
Author(s):  
D Eggbeer ◽  
R Bibb ◽  
R Williams
Keyword(s):  
Rapid Prototyping ◽  
Computer Aided Design ◽  
Removable Partial Denture ◽  
Partial Denture ◽  
Software Analysis ◽  
Computer Aided ◽  
Cad Cam ◽  
Conventional Methods ◽  
Aided Design ◽  
Dental Cast

This study explores the application of computer-aided design and manufacture (CAD/CAM) to the process of electronically surveying a scanned dental cast as a prior stage to producing a sacrificial pattern for a removable partial denture (RPD) metal alloy framework. These are designed to retain artificial replacement teeth in the oral cavity. A cast produced from an impression of a patient's mouth was digitally scanned and the data converted to a three-dimensional computer file that could be read by the computer-aided design (CAD) software. Analysis and preparation were carried out in the digital environment according to established dental principles. The CAD software was then used to design the framework and generate a standard triangulation language (STL) file in preparation for its manufacture using rapid prototyping (RP) methods. Several RP methods were subsequently used to produce sacrificial patterns, which were then cast in a chromium-cobalt alloy using conventional methods and assessed for accuracy of fit. This work demonstrates that CAD/CAM techniques can be used for electronic dental cast analysis, preparation, and design of RPD frameworks. It also demonstrates that RP-produced patterns may be successfully cast using conventional methods and that the resulting frameworks can provide a satisfactory fit.

Enhancement of Design and Manufacturing Curriculum Through Rapid Prototyping Practices

2004 ◽  
Author(s):  
Ismail Fidan ◽  
Ken Patton
Keyword(s):  
Rapid Prototyping ◽  
Computer Aided Design ◽  
Physical Models ◽  
Web Based ◽  
Capstone Courses ◽  
Computer Aided ◽  
Design And Manufacturing ◽  
Cad Cam ◽  
Industrial Projects ◽  
Aided Design

Advances in computer technology opened new horizons in teaching Computer Aided Design (CAD) and Computer Aided Manufacturing (CAM) technologies. This paper will report the outcomes of two current NSF grants, 0311586 and 0302314, funded on Rapid Prototyping (RP) curriculum development. The objective of these RP projects is to provide advanced instruction and laboratory practices in the areas of CAD/CAM/CAE through challenging laboratory assignments and industrial projects that are integrated into any engineering curriculum. These projects create web-based materials, and also adapt and implement RP experiences and educational practices following successful similar models at various engineering schools to enhance pedagogy in design and manufacturing curriculum. Enhanced RP capabilities enable the students to build physical models directly from CAD data, where the prototype communicates important information about parts, including engineering data such as fit and limited functional testing, labeling, highlighting, and appearance simulation. Developed RP labs are used in junior and senior level design and manufacturing courses, including the senior capstone courses.

scholarly journals PEMAKAIAN MEDICAL RAPID PROTOTYPING UNTUK PREKONTUR PLAT REKONSTRUKSI PADA RESEKSI MANDIBULA

2017 ◽  
Vol 4 (2) ◽  
pp. 149
Author(s):  
Arya Kusuma Agraha ◽  
Masykur Rahmat ◽  
Rahardjo .
Keyword(s):  
Rapid Prototyping ◽  
Computer Aided Design ◽  
Mandibular Reconstruction ◽  
Reconstruction Plate ◽  
Mandibular Bone ◽  
Accurate Picture ◽  
Computer Aided ◽  
Long Time ◽  
Cad Cam ◽  
Aided Design

Background: In the case of mandibular resection that leaves a large mandibular bone defect, a mandibular reconstruction is required to restore functional and postoperative aesthetic factors. Mandibular reconstruction plate installation on mandibular resection is very important but difcult to achieve maximum results. The formation of reconstruction plates can be preoperative and intraoperative. Preoperative stereolithography (medical rapid prototyping/MRP) can be used to form rapid and accurate plates (precontours). Objective: Report the use of MRP as an alternative tool to precontour mandibular reconstruction plate.Case management: Reported reconstruction of mandibular defects in one case of hemimandibulectomy and two cases of segmental resection with avascular iliac bone grafts using MRP through a computer-aided design and computer aided manufacture procedure (CAD/CAM) to establish preoperative reconstruction plates (precontour) so the surgery doesn’t take long time to reconstruct, by forming a mandibular models under normal circumstances.Result: The formation of a reconstruction plates (precontour) using MRP (medical rapid prototyping) with CAD / CAM procedure gives results in accordance with the original form.Conclusions: The making of MRP through CAD / CAM procedure gives maximal result resembling the form of mandibular model. The MRP models get an accurate picture of the patient’s jaw as a pre contour tools for reconstruction plate. The formation of the reconstruction plates (precontour) with these MRP model is obtained from CAD / CAM and provides a normal jaw image, so that preoperative precontouring will give good and maximum result on the reconstruction plates made under the MRP models.

scholarly journals Evaluation of Different Materials Used for Fabrication of Complete Digital Denture

2018 ◽  
Vol 55 (1) ◽  
pp. 124-128 ◽  
Author(s):  
Claudia Florina Andreescu ◽  
Doina Lucia Ghergic ◽  
Oana Botoaca ◽  
Violeta Hancu ◽  
Andreea Mariana Banateanu ◽  
...  
Keyword(s):  
Rapid Prototyping ◽  
Polymethyl Methacrylate ◽  
Computer Aided Design ◽  
Complete Denture ◽  
Computer Aided Manufacturing ◽  
Computer Aided ◽  
Cad Cam ◽  
Materials Used ◽  
Aided Design ◽  
Digital Denture

Utilization of computer-aided design/computer-aided manufacturing (CAD/CAM) rapidly increases in dental medicine. Making of computer-engineered complete denture is based on scanning of patient data, designing of prosthesis and milling or rapid prototyping. This is digital denture, term that includes innovative devices, software programmes and corresponding materials. Industrially polymerized cross-linked polymethyl methacrylate (PMMA) is the material used for fabrication of digital denture. The aim of this study is to analyze the different cross-linked PMMA used for fabrication of CAD/CAM complete denture.

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