IADR Abstract Archives
Investigation of Effects of Glass Ionomer Cements on Dentinal Lesions Treated Using Atraumatic Restorative Technique
Objectives: The aim of this research study is to investigate and monitor the effects of fluoride remineralization at the cement-cavity interface. For this experiment, high fluoride releasing strontium free G338 glass has been used as a restorative material. The interfacial mineral density variations, are being monitored using X-ray Microtomography.
Methods: Two teeth with moderately deep dentinal lesions were cleaned and restored with high fluoride G338 glass ionomer cement using ART. These restored teeth were then immersed in artificial saliva (pH 7) at 370C for which data was obtained after 1 week.
Results: Data depicts remineralization of the dentinal lesion at the cement-lesion junction. Just adjacent to the remineralized area, a thin area of demineralization is observed in the XMT scan. It seems that the calcium and phosphate ions have dissociated from the deep demineralized region and precipitated onto the subjacent almost equally remineralized area.
Conclusions: The findings seem conclusive that high fluoride releasing GICs used in ART may only result in remineralization at the cement-lesional interface while subsequently preventing remineralization (and possibly causing demineralisation) of the deeper part of the underlying lesion.
Methods: Two teeth with moderately deep dentinal lesions were cleaned and restored with high fluoride G338 glass ionomer cement using ART. These restored teeth were then immersed in artificial saliva (pH 7) at 370C for which data was obtained after 1 week.
Results: Data depicts remineralization of the dentinal lesion at the cement-lesion junction. Just adjacent to the remineralized area, a thin area of demineralization is observed in the XMT scan. It seems that the calcium and phosphate ions have dissociated from the deep demineralized region and precipitated onto the subjacent almost equally remineralized area.
Conclusions: The findings seem conclusive that high fluoride releasing GICs used in ART may only result in remineralization at the cement-lesional interface while subsequently preventing remineralization (and possibly causing demineralisation) of the deeper part of the underlying lesion.