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Comparative Study
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't
In vitro comparison of self versus professionally applied remineralizing materials.
OBJECTIVE: To compare the effect of 4 remineralizing materials on the incipient artificial carious lesion and its proximal sound enamel when used with fluoride dentifrice.
STUDY DESIGN: Models mimicking proximal contact were made, each of which was placed with an artificial carious specimen in contact with a sound enamel specimen. Each carious specimen was treated with one of four materials: glass ionomer cement (GIC), resin modified glass ionomer cement (RMGIC), 5000 ppm sodium fluoride (F-gel), and casein phosphopeptide amorphous calcium phosphate (CPP-ACP). The GIC and RMGIC specimens were thermocycled. Then all specimens were pH-cycled for 5 days with twice a day soaking in 1,000 ppm NaF dentifrice solution. Specimens were examined by polarized light microscopy and lesion area quantified by image analysis.
RESULTS: RMGIC significantly yielded smaller areas of lesion than CPP-ACP and GIC (p < 0.05). F-gel reduced more area of lesion than CPP-ACP significantly (p < 0.05). In the associated contact, RMGIC significantly reduced the area of lesion better than CPP-ACP (p < 0.05).
CONCLUSIONS: The most effective remineralizing material in reducing the carious lesion areas was RMGIC followed by F-gel, GIC and CPP-ACR The demineralization inhibitory effects on the associated sound contact enamel followed the same trend.
STUDY DESIGN: Models mimicking proximal contact were made, each of which was placed with an artificial carious specimen in contact with a sound enamel specimen. Each carious specimen was treated with one of four materials: glass ionomer cement (GIC), resin modified glass ionomer cement (RMGIC), 5000 ppm sodium fluoride (F-gel), and casein phosphopeptide amorphous calcium phosphate (CPP-ACP). The GIC and RMGIC specimens were thermocycled. Then all specimens were pH-cycled for 5 days with twice a day soaking in 1,000 ppm NaF dentifrice solution. Specimens were examined by polarized light microscopy and lesion area quantified by image analysis.
RESULTS: RMGIC significantly yielded smaller areas of lesion than CPP-ACP and GIC (p < 0.05). F-gel reduced more area of lesion than CPP-ACP significantly (p < 0.05). In the associated contact, RMGIC significantly reduced the area of lesion better than CPP-ACP (p < 0.05).
CONCLUSIONS: The most effective remineralizing material in reducing the carious lesion areas was RMGIC followed by F-gel, GIC and CPP-ACR The demineralization inhibitory effects on the associated sound contact enamel followed the same trend.
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