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Survival of ART and Amalgam Restorations in Permanent Teeth of Children after 6.3 Years

¹ WHO Collaborating Centre for Oral Health Care Planning and Future Scenarios, Radboud University Medical Centre, College of Dental Sciences, PO Box 9101, 6500 HB Nijmegen, the Netherlands;
² School Health Department, Ministry of Education, Damascus, Syria; and
³ Department of Preventive and Restorative Dentistry, Radboud University Medical Centre, College of Dental Sciences, P.O. Box 9101, 6500 HB Nijmegen, the Netherlands

^* corresponding author, j.frencken{at}dent.umcn.nl

The null hypothesis tested was that there is no difference in the survival percentages of all restorations placed through the Atraumatic Restorative Treatment (ART) approach, with high-viscosity glass ionomer, and those produced through the traditional approach, with amalgam (TA), in the permanent dentitions of children after 6.3 years. Using a parallel group design, we randomly assigned a total of 370 children, aged 6 to 9 years, to the ART group and 311 children, also aged 6 to 9 years, to the TA group. Eight dentists placed a total of 1117 single- and multiple-surface restorations. The cumulative survival percentages for ART glass-ionomer restorations were statistically significantly higher than those of amalgam restorations at all time intervals except the first (p 0.044). After 6.3 years, the cumulative survival percentages of ART and amalgam restorations were 66.1% (SE = 3.1%) and 57.0% (SE = 3.3%), respectively. We concluded that the restorations produced with the ART approach, with high-viscosity glass ionomer, survived longer than those produced with the traditional approach, with amalgam, in the permanent teeth of young children.

KEY WORDS: restorations • atraumatic restorative treatment • amalgam • glass ionomer • survival

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