Indiana University-Purdue University Indianapolis (IUPUI) / Certain properties of a representative composite material were evaluated by in vitro testing and compared to those of other types of restorative materials. A clinical study designed to evaluate the
performance of the composite material as compared to amalgam for
Class II restorations was initiated and one-year results are reported.
Laboratory tests for abrasion resistance, hardness, marginal
leakage, strength, color stability, staining characteristics, solubility,
and water sorption were conducted.
The clinical study is still in progress but the results after one
year indicated that the composite resin test restorations, as well as
the amalgam control restorations, were generally satisfactory. In
overall clinical performance neither material was superior to the
other. The amalgam restorations received a superior rating for anatomic
form while the composite restorations were superior in terms of marginal
adaptation. No clinical evidence of recurrent caries, associated with
any of the restorations, was detected. Surface discoloration was a
significant finding on the composite restorations, but it was confined
to proximal areas and may be related to the difficulty of cleaning
these areas with a toothbrush.
No conclusions can yet be made regarding the long-term clinical
performance of the composite resin used in this investigation as a
Class II restorative material.
| Identifer | oai:union.ndltd.org:IUPUI/oai:scholarworks.iupui.edu:1805/3679 |
| Date | January 1971 |
| Creators | Avery, David Roger |
| Contributors | Gilmore, H. William (Homer William), Van Huysen, Grant, Garner, La Forrest Dean, 1933- |
| Source Sets | Indiana University-Purdue University Indianapolis |
| Language | en_US |
| Detected Language | English |
| Type | Thesis |
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