Dimensional contour stability of acrylic resin bases for complete dentures before and after water sorption.

Int J Prosthodont 2005 Nov-Dec;18(6):480-2

Department of Prosthodontics, School of Dentistry, University of Turin, Italy.

Purpose: To evaluate the dimensional contour variations of acrylic resin denture bases before and after storage in water.

Materials And 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.

Conclusion: Water sorption had an important effect on the contour of the prosthetic bases.

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Source
February 2006

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