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Integration of laser surface digitizing with CAD/CAM techniques for developing facial prostheses. Part 2: Development of molding techniques for casting prosthetic parts.
Int J Prosthodont. 2003 Sep-Oct; 16(5):543-8.IJ

Abstract

PURPOSE

This article presents a novel manufacturing approach that integrates laser surface digitizing/scanning and computer-aided design and manufacturing (CAD/CAM) to achieve automated fabrication of spatially and anatomically accurate extraoral facial prostheses.

MATERIALS AND METHODS

Contrary to the approach in part 1 for fabricating positive replicas of prostheses, the approaches presented here are focused on designing and producing negative molds of the final prostheses using CAD, rapid prototyping, and rapid tooling techniques. The molds were applied directly to cast the final prostheses, thereby eliminating conventional flasking and investing procedures.

RESULTS

Three different facial prostheses were produced to evaluate the proposed approach for prosthesis production. The advantages of this alternative manufacturing approach over the approach presented in part 1 and conventional techniques are discussed. The limitations encountered with the integrated manufacturing system are highlighted.

CONCLUSION

With the new techniques, reduced patient discomfort, minimal dependence on the artistic skills of the prosthetist, and short turnaround times for prosthesis production can be expected.

Authors+Show Affiliations

Cheah CM
School of Mechanical and Production Engineering, Nanyang Technological University, Singapore.
Chua CK
No affiliation info available
Tan KH
No affiliation info available

MeSH

Biocompatible MaterialsComputer-Aided DesignDimethylpolysiloxanesFaceFemaleFrontal BoneHumansImage Processing, Computer-AssistedLasersProstheses and ImplantsProsthesis DesignSiliconesTechnology

Pub Type(s)

Case Reports
Journal Article

Language

eng

PubMed ID

14651243

Citation

Cheah, Chi-Mun, et al. "Integration of Laser Surface Digitizing With CAD/CAM Techniques for Developing Facial Prostheses. Part 2: Development of Molding Techniques for Casting Prosthetic Parts." The International Journal of Prosthodontics, vol. 16, no. 5, 2003, pp. 543-8.
Cheah CM, Chua CK, Tan KH. Integration of laser surface digitizing with CAD/CAM techniques for developing facial prostheses. Part 2: Development of molding techniques for casting prosthetic parts. Int J Prosthodont. 2003;16(5):543-8.
Cheah, C. M., Chua, C. K., & Tan, K. H. (2003). Integration of laser surface digitizing with CAD/CAM techniques for developing facial prostheses. Part 2: Development of molding techniques for casting prosthetic parts. The International Journal of Prosthodontics, 16(5), 543-8.
Cheah CM, Chua CK, Tan KH. Integration of Laser Surface Digitizing With CAD/CAM Techniques for Developing Facial Prostheses. Part 2: Development of Molding Techniques for Casting Prosthetic Parts. Int J Prosthodont. 2003 Sep-Oct;16(5):543-8. PubMed PMID: 14651243.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Integration of laser surface digitizing with CAD/CAM techniques for developing facial prostheses. Part 2: Development of molding techniques for casting prosthetic parts. AU - Cheah,Chi-Mun, AU - Chua,Chee-Kai, AU - Tan,Kwang-Hui, PY - 2003/12/4/pubmed PY - 2004/2/28/medline PY - 2003/12/4/entrez SP - 543 EP - 8 JF - The International journal of prosthodontics JO - Int J Prosthodont VL - 16 IS - 5 N2 - PURPOSE: This article presents a novel manufacturing approach that integrates laser surface digitizing/scanning and computer-aided design and manufacturing (CAD/CAM) to achieve automated fabrication of spatially and anatomically accurate extraoral facial prostheses. MATERIALS AND METHODS: Contrary to the approach in part 1 for fabricating positive replicas of prostheses, the approaches presented here are focused on designing and producing negative molds of the final prostheses using CAD, rapid prototyping, and rapid tooling techniques. The molds were applied directly to cast the final prostheses, thereby eliminating conventional flasking and investing procedures. RESULTS: Three different facial prostheses were produced to evaluate the proposed approach for prosthesis production. The advantages of this alternative manufacturing approach over the approach presented in part 1 and conventional techniques are discussed. The limitations encountered with the integrated manufacturing system are highlighted. CONCLUSION: With the new techniques, reduced patient discomfort, minimal dependence on the artistic skills of the prosthetist, and short turnaround times for prosthesis production can be expected. SN - 0893-2174 UR - https://www.unboundmedicine.com/medline/citation/14651243/Integration_of_laser_surface_digitizing_with_CAD/CAM_techniques_for_developing_facial_prostheses__Part_2:_Development_of_molding_techniques_for_casting_prosthetic_parts_ DB - PRIME DP - Unbound Medicine ER -