Abstract
Aim: To compare different methods for evaluating composite resin restorations in posterior teeth and to evaluate the reliability of each method by determining the intraobserver agreement. 
 Material and methods: 136 class I resin composite restorations were evaluated by a trained examiner using modified Ryge criteria to assess selected restoration characteristics with three different methods: clinical, photographic and dental cast models. 
 Results: The results showed that intraexaminer agreement was better on dental cast models evaluations for marginal integrity and anatomic form and was similar between photographic and clinical evaluations for marginal integrity and marginal discoloration. Surface texture showed the lowest degree of intraexaminer agreement with all the methods tested. Direct clinical method and the two indirect methods were significantly different for all the characteristics assessed (p
Highlights
The use of resin-based composites for restoring posterior teeth has increased significantly in recent years (ERNEST et al, 2001; RYKKE, 1992; SUZUKI et al, 1995; TÜRKÜN; AKTENER, 2001), specially after the introduction of several modifications from the earlier generations (ABDALLA; ALHADAINY, 1996; ADA COUNCIL ON SCIENTIFIC AFFAIRS, 2003; HERVÁS-GARCÍA et al, 2006)
This paper presents a comparison between a direct and two indirect methods to assess their ability to discriminate between different degrees of deterioration of composite resin restorations in posterior teeth for marginal integrity, anatomic form, marginal discoloration and surface texture
This study demonstrated that the indirect methods using dental cast models have higher intraexaminer agreement while clinical and photographic evaluations showed similar values for most of the characteristics assessed
Summary
The use of resin-based composites for restoring posterior teeth has increased significantly in recent years (ERNEST et al, 2001; RYKKE, 1992; SUZUKI et al, 1995; TÜRKÜN; AKTENER, 2001), specially after the introduction of several modifications from the earlier generations (ABDALLA; ALHADAINY, 1996; ADA COUNCIL ON SCIENTIFIC AFFAIRS, 2003; HERVÁS-GARCÍA et al, 2006). Indirect methods with stone cast replicas have been used to assess anatomic form, marginal integrity and surface texture. This paper presents a comparison between a direct (clinical evaluation) and two indirect methods (photographs and dental cast models evaluation) to assess their ability to discriminate between different degrees of deterioration of composite resin restorations in posterior teeth for marginal integrity, anatomic form, marginal discoloration and surface texture.
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