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The longevity of different restorations in primary teeth
Vibeke Qvist1, Agneta Poulsen, Poul Thorpen Teglers
1Department of Cariology and Endodontics, Faculty of Health Sciences, School of Dentistry, University of Copenhagen, Copenhagen, Denmark.
International Journal of Paediatric Dentistry
|January 12, 2010
Summary
Resin modified glass ionomer (RMGI) and compomer (COM) offer comparable longevity to amalgam (AM) in primary teeth. Conventional glass ionomer (GI) restorations showed shorter longevity, suggesting new materials don't always outperform older ones clinically.
Area of Science:
- Pediatric Dentistry
- Dental Materials Science
- Clinical Restorative Dentistry
Background:
- Amalgam (AM) has been a standard restorative material in primary teeth.
- Identifying effective alternatives to amalgam is crucial for pediatric dental care.
- Previous studies have evaluated various restorative materials for primary teeth.
Purpose of the Study:
- To compare the clinical longevity of different restorative materials as alternatives to amalgam in primary teeth.
- To assess the performance of resin-modified glass ionomer (RMGI), compomer (COM), and conventional glass ionomer (GI) restorations.
- To evaluate if materials showing promise in vitro translate to superior clinical outcomes.
Main Methods:
- A practice-based research design incorporating routine clinical treatments in children and adolescents.
- Randomized assignment of restorative materials in the initial three studies (7-8 years duration).
- A fourth study (4 years post-initial studies) allowed clinicians to freely select restorative materials.
Main Results:
- Resin-modified glass ionomer (RMGI) and compomer (COM) restorations demonstrated longevity comparable to amalgam (AM).
- Conventional glass ionomer (GI) restorations exhibited significantly shorter longevity compared to amalgam.
- Clinical performance did not consistently align with in vitro material assessments.
Conclusions:
- RMGI and COM are viable alternatives to amalgam for primary teeth restorations, offering similar longevity.
- Conventional GI materials are less durable for primary teeth restorations compared to AM, RMGI, and COM.
- Clinical evaluation is essential, as in vitro properties do not always predict real-world effectiveness of dental restorative materials.
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