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Órgano Oficial de la Asociación Dental Mexicana

2010, Number 2

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Rev ADM 2010; 67 (2)

Glass-ionomer restoratives: an evaluation according to standard 96 of the ADA

Flores SLA, Ramírez OJP

Language: Spanish
References: 22
Page: 72-77
PDF size: 271.34 Kb.


ABSTRACT

Objective. The aim of this study was to evaluate, according to Specification N° 96 of the ADA, the physical properties of five restorative glass-ionomer cements available in Mexico City.
Materials and methods. Five glass-ionomer cements were selected: Fuji II© (GC Corp), Ketac Molar Easymix© (3M ESPE), Mirafill© (Faprodmir), Medental© (Medental), and Glasion© (Sci-Pharm). All cements were prepared according to the manufacturer’s instructions, at 23 ± 1°C and 50 ± 5% relative humidity. Following the procedure established in Specification No. 96 of the ADA, tests relating to setting time, compressive strength and acid erosion were performed.
Results. In the tests for net setting time and acid erosion using an impinging jet technique, all the cements studied complied with the values established in Specification No. 96 of the ADA. In compressive strength, Fuji II® and Ketac Molar Easymix® achieved values above the 130 MPa required by the aforementioned standard.
Conclusions. Three of the five cements studied failed to reach the minimum compressive strength value established by Specification No. 96 of the ADA, a fundamental test for restorative cements. In terms of setting time and acid erosion, values did comply with the specified standard.


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