학술정보

3.4.1 CAD/CAM technology for implant abutments, crown, and superstructures

3. CAD
3.4. CAD- implants
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kaddorkr
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2019-01-01 17:09
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3.4.1

Kapos T,Evans C.

CAD/CAM technology for implant abutments, crown, and superstructures

International journal & maxillofacial implants 2014:29 Suppl:117-36

 

PURPOSE:

The aim of this systematic review was to compare implant prostheses fabricated by computer-assisted design and computer-assisted manufacturing (CAD/CAM) with conventionally fabricated implant prostheses when assessing esthetics, complications (biologic and mechanical), patient satisfaction, and economic factors.

MATERIALS AND METHODS:

Electronic searches for clinical studies focusing on long-term follow-up were performed using the PubMed and Ovid search engines. Concentrating on the restorative aspect of the CAD/CAM technology applicable to implantdentistry, pertinent literature was divided into articles related to implant abutments, crowns, and frameworks.

RESULTS:

A total of 18 articles satisfied the inclusion criteria. Two articles reported on CAD/CAM crowns, six on abutments, and 10 on implant-supported CAD/CAM frameworks. The mean survival rate for CAD/CAM crowns was 98.85% and for CAD/CAMabutments 100%. The mean survival rate for CAD/CAM frameworks was 95.98%.

CONCLUSION:

Based on the current literature, CAD/CAM fabricated crowns, abutments, and frameworks demonstrate survival rates comparable to conventionally fabricated prostheses. Implant survival appears unaffected by fabrication technique. Since this technology encompasses several manufacturing variations, a new definition might be necessary to accurately define the processes under which the CAD/CAM restorations are fabricated. “Complete CAD/CAM product” where no or minimal manual intervention is employed could be a possible term.

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