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J Int Soc Prev Community Dent. 2012 Jul;2(2):42-7. doi: 10.4103/2231-0762.109361.

Clinical evaluation of a new art material: Nanoparticulated resin-modified glass ionomer cement.

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Department of Pedodontics & Preventive Dentistry, AECS Maruthi College of Dental Sciences & Research Centre, Bangalore, India.



The success of atraumatic restorative treatment (ART) technique depends on the restorative material; hence, clinical studies with various materials are necessary.


The aim of the present study was to clinically evaluate and compare the nanoionomer and high-viscosity glass ionomer using United States Public Health Services (USPHS) Modified Cvar/Ryge Criteria with ART approach.


Two primary molars in 50 healthy children aged between 5 and 8 years were selected for the study. The teeth were treated with ART and divided into two groups. The group 1 teeth were restored with nanoionomer (Ketac Nano 100 3M ESPE) and group 2 with high-viscosity glass ionomer cement (HVGIC), (Fuji IX GC). Each restoration was evaluated using the USPHS Modified Cvar/Ryge Criteria at baseline and 6 months' and 12 months' time interval.


Chi-squared (χ(2)) test.


Nanoionomer was significantly better than HVGIC with respect to color match at baseline, 6 months, and 12 months (P<0.001). Nanoionomers were also significantly better than HVGIC in case of cavosurface marginal discoloration and marginal adaptation (P<0.001) at 6 months and 12 months. There was no significant difference between the two materials with respect to secondary caries at 6 months (P>0.05), but at 12 months, nanoionomer was statistically better than HVGIC (P<0.05). There was no statistical significant difference with respect to anatomical form and postoperative sensitivity (P>0.05).


The results indicate that nanoionomer can be a successful alternative restorative material for use with ART technique.


Atraumatic restorative treatment; United states public health services criteria; nanoionomer

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