|Year : 2014 | Volume
| Issue : 3 | Page : 110-111
Is computer aided design-computer aided manufacturing including to Pediatric Dentistry?
Department of Prosthodontics, Ishik University, College of Dentistry and Hospital, Arbil, Iraq
|Date of Web Publication||28-Nov-2014|
Department of Prosthodontics, Ishik University, College of Dentistry and Hospital, Arbil
Source of Support: None, Conflict of Interest: None
|How to cite this article:|
Uzgur R. Is computer aided design-computer aided manufacturing including to Pediatric Dentistry?. J Pediatr Dent 2014;2:110-1
| Introduction|| |
The conventional manufacturing approach that is employed for the purposes of producing fixed partial denture (FPD) metal frameworks utilizes what is known as the lost-wax technique.  This technique involves the administration of local anesthesia, preparation of abutment teeth, forming of impressions and models, waxing up of the FPD framework and finally casting.  Unfortunately, a large number of technical drawbacks are typically associated with this manufacturing technique. These include, but are not limited to, patient discomfort, imprecise marginal fit and metal framework distortion.  In recent years, specialists have employed both computer-aided design (CAD) and computer aided manufacturing techniques (CAM) to improve accuracy overcome these problems. Using these techniques specialists are able to digitalize the prepared abutment teeth, produce a virtual design of the FPD frameworks and then manufacture the prosthetic using a computer aided manufacturing (CAM) process. 
| New methods|| |
The CAM systems that are currently used to fabricate dental prostheses utilize two manufacturing approaches: The substractive approach, which is used to mill pre-formed dental blanks; or "the additive approach," which is used in the stereolitography, robocasting, ink-printing and selective laser sintering methods. 
The selective laser sintering method involves the use of a powder-based layer-additive manufacturing technique that produces prototypes and the required tooling quickly in a quick and efficient manner. Laser beams, which operate in either continuous or pulse mode, provide a source of heat that scans and joins powders in predetermined sizes and shapes of layers that directly correspond with the cross sections produced during the CAD phase or stereolithography. 
| New materials|| |
In recent years, cobalt-chromium-based soft milling blanks that are suitable for the substractive approach have been introduced to the dental market. The manufacturer of these components claims that the wax-like texture of the blanks results in a significant reduction in the total manufacturing time than that required in the conventional milling of solid Co-Cr blanks. The producers also claim that the milled FPDs offer mechanical and biological properties that are comparable with those employed in conventional manufacturing techniques. 
| Pediatric dentistry|| |
Not only adult patients, but also pediatric patients are being treated by CAD-CAM systems with great success today. Especially, primary molars and broken-down permanent first molars are placed utilizing chairside CAD/CAM technology. All things considered about pediatric patients, CAD-CAM technology with speed, precise and short time may be a better solution in the future. 
| References|| |
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