Dimensional contour stability of acrylic resin bases for complete dentures before and after water sorption.
OBJECTIVE
To evaluate the dimensional contour variations of acrylic resin denture bases before and after storage in water.


METHODS
The fit of 40 bases was evaluated by measuring the thickness of a layer made with silicone placed between the bases and the casts. The measurements were repeated on a new set of silicone layers after having stored the bases in water for 42 days.


RESULTS
Significant differences were found both for the maxillary and the mandibular bases.


CONCLUSIONS
Water sorption had an important effect on the contour of the prosthetic bases.
Monfrin
Sandro Barone
SB
Department of Prosthodontics, School of Dentistry, University of Turin, Italy.
Notaro
Vincenzo
V
Gassino
Gianfranco
G
Perotti
Roberto
R
Bassi
Francesco
F
D000042:Absorption; D000180:Acrylic Resins / Q000737:chemistry*; D003819:Denture Bases; D003824:Denture, Complete; D006801:Humans; D012828:Silicones; D014867:Water
D000180:Acrylic Resins; D012828:Silicones; D014867:Water