I can routinely retrofit an RPD using digital scans. What was once a difficult task is now simple MJ
Available online 5 January 2019
Abstract
The task of fabricating a new crown under an existing
removable partial denture presents
challenges for the dentist, technician, and patient. The main concern
is accurately communicating the configuration of the rest, retentive
clasps, and reciprocal elements to the laboratory technician without
temporarily depriving the patient of the prosthesis. A variety of
solutions involving stone cast alterations and elastomeric or resin
indexes have been used for this task. However, these methods require
significant additional time and technique-sensitive work by the operator
and technician. More recent approaches using digital technologies
require many of these traditional steps, each of which introduces
potential inaccuracy and labor cost. This updated approach eliminates
the inaccuracies associated with manual manipulation by the technician
by leveraging contemporary intraoral scanning technology and a
completely digital workflow to predictably and accurately fabricate a
crown under an existing prosthesis.
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