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Six-year success rates of occlusal amalgam and glass-ionomer restorations placed using three minimal intervention approaches.
Caries Res. 2003 Jul-Aug; 37(4):246-53.CR

Abstract

The present randomised clinical trial was aimed at comparing three minimally invasive restorative treatment approaches for managing dental caries in occlusal surfaces using a non-gamma-2 amalgam and a low-viscosity glass-ionomer as the restorative material. The treatment approaches tested in parallel groups were: conventional in a university setting, modified-conventional and ultraconservative (Atraumatic Restorative Treatment, ART) approaches in a field setting. A split-mouth design was used in which the two restorative materials were randomly placed in 430 matched contralateral pairs of permanent molar teeth. A total of 152 children from five primary schools were recruited and treated by a dental therapist. The restorations were evaluated after 6 years by 2 calibrated independent examiners. The 6-year successes for all occlusal amalgam and glass-ionomer restorations were 72.6 and 72.3%, respectively. There were no statistically significant differences observed between the successes for both amalgam and glass-ionomer restorations placed either by the ART (68.6%, with 95% CI = 61-76%) approach or by the conventional (74.5%, with 95% CI = 65-82%) and the modified-conventional (75.8%, with 95% CI = 67-83%) approaches after 6 years. There was also no statistically significant difference observed between the successes of occlusal ART restorations with glass-ionomer (67.1%, with 95% CI = 56-77%) and occlusal conventional restorations with amalgam (74%, with 95% CI = 61-85%) after 6 years. 'Restoration fracture/marginal defects' and 'loss of material' were the most common causes for failure. The former was more often recorded in amalgam restorations and the latter in glass-ionomer restorations. Secondary caries was observed for 2% of glass-ionomer and for 10% of amalgam restorations. This difference was statistically significant (p = 0.001). The ART approach using glass-ionomer performed equally well as conventional restorative approaches using electrically driven equipment and amalgam for treating dentinal lesions in occlusal surfaces after 6 years.

Authors+Show Affiliations

Department of Restorative Dentistry, University of Dar es Salaam, Dar es Salaam, Tanzania.No affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

12771499

Citation

Mandari, G J., et al. "Six-year Success Rates of Occlusal Amalgam and Glass-ionomer Restorations Placed Using Three Minimal Intervention Approaches." Caries Research, vol. 37, no. 4, 2003, pp. 246-53.
Mandari GJ, Frencken JE, van't Hof MA. Six-year success rates of occlusal amalgam and glass-ionomer restorations placed using three minimal intervention approaches. Caries Res. 2003;37(4):246-53.
Mandari, G. J., Frencken, J. E., & van't Hof, M. A. (2003). Six-year success rates of occlusal amalgam and glass-ionomer restorations placed using three minimal intervention approaches. Caries Research, 37(4), 246-53.
Mandari GJ, Frencken JE, van't Hof MA. Six-year Success Rates of Occlusal Amalgam and Glass-ionomer Restorations Placed Using Three Minimal Intervention Approaches. Caries Res. 2003 Jul-Aug;37(4):246-53. PubMed PMID: 12771499.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Six-year success rates of occlusal amalgam and glass-ionomer restorations placed using three minimal intervention approaches. AU - Mandari,G J, AU - Frencken,J E, AU - van't Hof,M A, PY - 2002/10/04/received PY - 2003/01/29/accepted PY - 2003/5/29/pubmed PY - 2003/8/20/medline PY - 2003/5/29/entrez SP - 246 EP - 53 JF - Caries research JO - Caries Res VL - 37 IS - 4 N2 - The present randomised clinical trial was aimed at comparing three minimally invasive restorative treatment approaches for managing dental caries in occlusal surfaces using a non-gamma-2 amalgam and a low-viscosity glass-ionomer as the restorative material. The treatment approaches tested in parallel groups were: conventional in a university setting, modified-conventional and ultraconservative (Atraumatic Restorative Treatment, ART) approaches in a field setting. A split-mouth design was used in which the two restorative materials were randomly placed in 430 matched contralateral pairs of permanent molar teeth. A total of 152 children from five primary schools were recruited and treated by a dental therapist. The restorations were evaluated after 6 years by 2 calibrated independent examiners. The 6-year successes for all occlusal amalgam and glass-ionomer restorations were 72.6 and 72.3%, respectively. There were no statistically significant differences observed between the successes for both amalgam and glass-ionomer restorations placed either by the ART (68.6%, with 95% CI = 61-76%) approach or by the conventional (74.5%, with 95% CI = 65-82%) and the modified-conventional (75.8%, with 95% CI = 67-83%) approaches after 6 years. There was also no statistically significant difference observed between the successes of occlusal ART restorations with glass-ionomer (67.1%, with 95% CI = 56-77%) and occlusal conventional restorations with amalgam (74%, with 95% CI = 61-85%) after 6 years. 'Restoration fracture/marginal defects' and 'loss of material' were the most common causes for failure. The former was more often recorded in amalgam restorations and the latter in glass-ionomer restorations. Secondary caries was observed for 2% of glass-ionomer and for 10% of amalgam restorations. This difference was statistically significant (p = 0.001). The ART approach using glass-ionomer performed equally well as conventional restorative approaches using electrically driven equipment and amalgam for treating dentinal lesions in occlusal surfaces after 6 years. SN - 0008-6568 UR - https://www.unboundmedicine.com/medline/citation/12771499/Six_year_success_rates_of_occlusal_amalgam_and_glass_ionomer_restorations_placed_using_three_minimal_intervention_approaches_ L2 - https://www.karger.com?DOI=10.1159/000070866 DB - PRIME DP - Unbound Medicine ER -