n Journal of Minimum Intervention in Dentistry - Caries preventive effect - glass ionomer versus amalgam : grey literature

Volume 6, Issue 6
  • ISSN : 1998-801X


[This document has been captured as part of the JMID-section for Grey-literature. Grey (or gray) literature refers to informally published written material that may be difficult to trace via conventional databases and/or journals as it is not formally published or is not widely accessible. However, Grey literature may still be an important source of information. Examples of grey literature include e.g.: patents, reports, working documents or unpublished manuscripts]

Five articles, reporting on 6 separate study results, were accepted for data extraction and further meta-analysis. Clinical heterogeneity was observed and articles grouped accordingly. Meta-analysis was conducted per group of articles. The estimated results suggest no difference in caries incidence for both multiple surface GIC and amalgam restorations (weighted Odds ratio, OR = 2.08 - CI 95% 0.86 - 5.05) after 3 years. The results suggest further that GIC increased the odds for permanent teeth with single surface restorations by 164% (weighted OR = 2.64 - CI 95% 1.39 - 5.03) after 6 years of what they would have been if the teeth were restored with amalgam instead. The results of other trials (not included due to aspects of internal validity) were consistent with the results of this meta-analysis for permanent teeth.[2008]

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