The evidence suggests that RM-GIC is associated with a higher reduction of demineralization in adjacent hard tooth tissue than composite resin without fluoride .
No difference was found when RM-GIC was compared with fluoride-containing composite resin .
RM-GIC showed efficacy in reducing demineralization .
UNLABELLED The purpose of this systematic review was to quantitatively find out whether resin-modified glass-ionomers ( RM-GIC ) , in comparison to fluoride-containing composite resin and composite resin without fluoride , are associated with a more effective reduction of demineralization in hard tooth tissues under caries challenge .
Hypermineralization of Dentinal Lesions Adjacent to Glass-ionomer Cement Restorations
Previous reports have shown a release of fluoride from glass-ionomer cement ( GIC ) restorations into the oral fluids . Fluoride in the ambient fluids has a caries-preventive effect by enhancing remineralization and inhibiting demineralization of the dental hard tissues . Therefore , the current investigation was undertaken to determine whether GIC fillings could contribute to the remineralization of caries lesions in dentin . Small circular preparations were made in disks of dentin which had incipient caries-like lesions in the remaining tissue . The preparations were filled with amalgam or composite material s ( as controls ) or with GIC . The specimens thus contained a restoration close to a dentinal caries-like lesion . The specimens were placed contralaterally in the buccal surfaces of removable partial dentures and were worn intra-orally by volunteers for a 12-week experimental period , after which the specimens were sectioned and analyzed by microradiography . All specimens with GIC restorations exhibited hypermineralization in the tissue bordering the filling and in the wall of the preparation which had been in contact with the restoration . The ( caries-like ) lesions were remineralized , even under conditions of heavy plaque formation . In contrast , specimens with amalgam or composite restorations showed further extensive demineralization . This study demonstrates a significant remineralization potential exerted by the fluoride-releasing GIC restorative material . Consequently , the choice of the restorative material might be crucial for the occurrence or prevention of recurrent caries around restorations
The evidence suggests that RM-GIC is associated with a higher reduction of demineralization in adjacent hard tooth tissue than composite resin without fluoride .
No difference was found when RM-GIC was compared with fluoride-containing composite resin .
RM-GIC showed efficacy in reducing demineralization .
UNLABELLED The purpose of this systematic review was to quantitatively find out whether resin-modified glass-ionomers ( RM-GIC ) , in comparison to fluoride-containing composite resin and composite resin without fluoride , are associated with a more effective reduction of demineralization in hard tooth tissues under caries challenge .