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Clinical evaluation of three posterior composite and two amalgam restorative materials : 3-year results.
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Cunningham, John, Mair, L. H., Foster, M. A. and Ireland, R. S. (1990) Clinical evaluation of three posterior composite and two amalgam restorative materials : 3-year results. British Dental Journal, Volume 169 (Number 10). pp. 319-23. ISSN 0007-0610.
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Official URL: http://www.nature.com/bdj/index.html
Abstract
The clinical performance of three posterior composites and two amalgams was evaluated over 3 years. Three hundred and nine composites and 200 amalgams were reviewed at the 3-year recall. The following parameters were assessed: fractures, gingival condition, interproximal contacts, marginal adaptation, staining and colour match. Although there was no significant difference in the overall failure rate between the two types of material, there was a significantly higher incidence of fracture in the amalgam restorations. The amalgam failures were exclusively mechanical, whereas those affecting composites also included failures that were more biological in nature. A significantly higher proportion of the Class II composites failed to achieve an adequate approximal contact, but this was not reflected in a more adverse gingival response. Colour match, surface and marginal stain varied significantly within the composite group and appeared to be material-related. Overall, the materials Occlusion and P-30 were considered to be performing adequately. The clinical handling, colour match and radiopacity of Clearfil Posterior were considered to be unsatisfactory.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School | ||||
Journal or Publication Title: | British Dental Journal | ||||
Publisher: | Nature Publishing Group | ||||
ISSN: | 0007-0610 | ||||
Official Date: | 24 November 1990 | ||||
Dates: |
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Volume: | Volume 169 | ||||
Number: | Number 10 | ||||
Page Range: | pp. 319-23 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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