Composite dowels and cores: effect of moisture on the fit of cast restorations.
A study was undertaken to evaluate the effect of interim restorations on the dimensional stability of composite post and core buildups subjected to moisture during the fabrication of cast restorations. Dimensional change associated with composite dowel and core buildups did not significantly alter the fit of cast restorations compared with natural teeth under the same conditions. The use of composite dowels and cores for the restoration of endodontically treated teeth is not contraindicated because of potential dimensional instability of the resin when exposed to moisture. Well-fitting interim restorations for either natural teeth or composite dowel and core buildups improved the fit of cast restorations 23% to 36%.
Vermilyea
S G
SG
Prosthodontics Service, U.S. Army Dental Activity, Walter Reed Army Medical Center, Washington, D.C.
Gardner
F M
FM
Moergeli
J R
JR
D003188:Composite Resins; D003442:Crowns; D003779:Denture Design; D003833:Denture, Partial, Temporary; D006801:Humans; D011176:Post and Core Technique; D013499:Surface Properties; D014867:Water
D003188:Composite Resins; D014867:Water