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Comparison of marginal adaptation between direct and indirect composites
G W Reeves1, D L Lentz, J W O'Hara
1University of Mississippi, School of Dentistry, Department of Restorative Dentistry, Jackson 39216.
Operative Dentistry
|November 1, 1992
Summary
Both direct and indirect composite resin restoration methods resulted in marginal gaps. This study found no significant difference in gap width between the two techniques for posterior dental restorations.
Area of Science:
- Dental Materials Science
- Restorative Dentistry
Background:
- Composite resin's use in posterior restorations faces challenges.
- Marginal gap formation is a significant concern in composite resin restorations.
Purpose of the Study:
- To compare the marginal adaptation of posterior composite resins.
- Evaluate differences between direct and indirect placement methods using flexible dyes.
Main Methods:
- In vitro study design.
- Utilized flexible dyes to assess marginal adaptation.
- Compared direct versus indirect composite resin placement techniques.
Main Results:
- Both direct and indirect methods resulted in the formation of marginal gaps.
- No statistically significant difference was observed in the width of marginal gaps between the two methods.
- Anatomical location did not influence the observed marginal gap differences.
Conclusions:
- Both direct and indirect composite resin placement techniques produce marginal gaps.
- Neither technique offers a superior marginal seal over the other.
- Further research may be needed to address gap formation in posterior composite restorations.