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Lookup NU author(s): Dr Robert Wassell, Professor Angus Walls, Professor John McCabe
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A clinical trial of direct composite inlays versus conventionally (incrementally) placed restorations made from the same material was started in January 1989. Restorations were randomly allocated to matched pairs of cavities. This study reports the 3-year performance of 71 of the 100 pairs of restorations placed over a 2-year period and followed-up every 6 months. Clinical assessments were made using USPHS criteria (indirect measurements of occlusal wear were made using Ivoclar standard dies) and annual bite wing radiographs. Direct inlays showed significantly less occlusal wear than conventional restorations, but the difference was small. The clinical performance of both types of restoration was similar and compared favourably with studies of other materials. No secondary decay was diagnosed. The direct inlays, however, took longer to place and did not reduce postoperative sensitivity or failure rate (8% failure of inlays and 4% of conventional composites over 3 years). Contouring of proximal and occlusal aspects was not facilitated with direct inlays but may be easier with indirect inlays on removable dies.
Author(s): Wassell RW, Walls AWG, McCabe JF
Publication type: Article
Publication status: Published
Journal: British Dental Journal
Year: 1995
Volume: 179
Issue: 9
Pages: 343-349
Print publication date: 01/11/1995
ISSN (print): 0007-0610
ISSN (electronic): 1476-5373
Publisher: Nature Publishing Group
URL: http://dx.doi.org/10.1038/sj.bdj.4808919
DOI: 10.1038/sj.bdj.4808919
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