Performance of resin materials for temporary fixed denture prostheses.
J Oral Sci. 2019 Mar 30. doi: 10.2334/josnusd.18-0150. [Epub ahead of print]
Abstract
This
study investigated the handling properties and clinical performance of
two commercially available resin materials with slight differences in
filler composition for the fabrication of fixed interim restorations. In
a dental university setting, patients requiring prosthetic treatment
were supplied with fixed interim restorations fabricated from two
commercially available resin materials. To clarify the handling
properties of the resin materials, dentists and undergraduate students
completed a questionnaire. Prior to insertion of the definitive
restoration, the interim restorations were analyzed by calibrated
examiners using a modification of the United States Public Health
Service criteria. Eighty-two fixed interim restorations with a mean
clinical service period of 44.5 (±28.3) days were included, including 39
single crowns, 30 fixed denture prostheses, 10 blocked crowns, and 3
partial coverage restorations. No significant differences between the
two materials in the rating of their handling properties were
identified, with the exception of the parameter "surface". Failures due
to fractures were observed in 13% of the interim restorations. No
significant differences between the materials in the rating of the
clinical performance were identified. These results indicate that slight
changes in the filler composition of commercial formulations account
for few differences in handling properties and clinical performance.
Comments