Surface micromorphological changes of glass ionomer following application of 1.23% acidulated phosphate fluoride: A scanning electron microscope study.

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dc.contributor.authorKhosla, Ektah
dc.contributor.authorKuriakose, Sobha
dc.contributor.authorSuderasen, Chintu
dc.date.accessioned2015-01-05T10:01:02Z
dc.date.available2015-01-05T10:01:02Z
dc.date.issued2014-07
dc.description.abstractObjectives: The purpose of this study was to evaluate the surface micromorphological changes of conventional glass ionomer cement (GIC) (Fuji II, GC Corporation, Tokyo, Japan) and high strength, high viscosity GIC (Fuji IX GP, GC Corporation) subjected to 1.23% acidulated phosphate fluoride (APF) gel for 4 min. It also evaluated the surface micromorphological changes that occurred in these materials when they were coated with a layer of glass ionomer varnish prior to the application of 1.23% APF gel. Materials and Methods: A total of 60 uniform glass ionomer cylinders were prepared (30 of each Fuji II and Fuji IX) and stored in distilled water for 48 h, following which they were divided into six groups depending on the surface treatment. Group 1: Fuji II alone, Group 2: Fuji IX alone, Group 3: Fuji II + 1.23% APF gel for 4 min, Group 4: Fuji IX + 1.23% APF gel for 4 min, Group 5: Fuji II + varnish + 1.23% APF gel for 4 min, and Group 6: Fuji IX + varnish + 1.23% APF gel for 4 min. After the required surface treatment had been done, the specimens were mounted, coated, and evaluated under scanning electron microscope. Statistical Analysis: Kruskal–Wallis test applied to compare the level of degradation among the groups subjected to treatment was highly significant (P < 0.001). Mann–Whitney test was applied to test the association between glass ionomer varnish and level of surface degradation and was also statistically significant (P = 0.001). Results: The results indicated that APF gel etched the surface of both Fuji II and Fuji IX. However, Fuji IX showed to possess better resistance to the erosive effect of APF than Fuji II. It was also observed that application of glass ionomer varnish prior to APF gel application protected the glass ionomer from the erosive effect of APF gel. Conclusion: APF gel caused erosive wear of the GICs esp. Fuji II. Hence, it is advisable to avoid the use of APF containing preparations for regular home use especially in children having glass ionomer restoration. If APF gel is indicated or preferred for professional application, it is recommended to apply glass ionomer varnish on the restored teeth prior to the APF gel application.en_US
dc.identifier.citationKhosla Ektah, Kuriakose Sobha, Suderasen Chintu. Surface micromorphological changes of glass ionomer following application of 1.23% acidulated phosphate fluoride: A scanning electron microscope study. Indian Journal of Dental Research. 2014 Jul-Aug; 25(4): 493-498.en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/154637
dc.language.isoenen_US
dc.source.urihttps://www.ijdr.in/article.asp?issn=0970-9290;year=2014;volume=25;issue=4;spage=493;epage=498;aulast=Khoslaen_US
dc.subjectAcidulated phosphate fluoride gelen_US
dc.subjectglass ionomer varnishen_US
dc.subjectglass ionomersen_US
dc.subject.meshAcidulated Phosphate Fluoride --physiology
dc.subject.meshGlass Ionomer Cement --analysis
dc.subject.meshGlass Ionomer Cement --physiology
dc.subject.meshMicroscopy, Electron, Scanning
dc.subject.meshSurface Properties --drug effects
dc.titleSurface micromorphological changes of glass ionomer following application of 1.23% acidulated phosphate fluoride: A scanning electron microscope study.en_US
dc.typeArticleen_US
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