CAD-CAM Dental Restoration: Dr. Brian Harris, Phoenix Arizona

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The concept of chair-side CAD/CAM restoration differs from conventional dentistry in that the prosthesis is typically luted or bonded in place the same day, whereas conventional dental prosthesis of larger size such as crowns have temporaries placed for several weeks while a dental laboratory may produce the restoration off-site.[2] The patient returns weeks later, the temporary is removed, and then the laboratory made crown is then cemented or bonded in place. Because the CAD/CAM restoration is bonded the same day, the principles applied in preparing the tooth for a crown or other prosthesis are typically more conservative since a temporary is just that, temporary, and the cements used to hold them in place must be weak enough to allow removal. As such, the teeth need to be prepared such that the geometry allows for adequate retention of the temporary in the conventional sense. Since retention can only be achieved with increased surface area, which translates into the removal of extra tooth structure, the conventional restoration typically requires the removal of more tooth structure. With the CAD/CAM restoration, lack of temporization makes physical retention unnecessary since the permanent bonding of the restoration occurs within hours, usually while the patient waits. Consequently, less unnecessary tooth removal is usually the norm.

Harris Dental - Phoenix
4444 North 32nd St., Suite 208
Phoenix, AZ 85018
(602) 955-8600

Harris Dental - Queen Creek
20261 E Ocotillo Rd # 120
Queen Creek, AZ 85142-8806
(480) 987-8768

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