Mechanical performance of encapsulated restorative glass-ionomer cements for use with Atraumatic Restorative Treatment (ART)

The Atraumatic Restorative Treatment (ART) approach was suggested to be a suitable method to treat enamel and dentine carious lesions in patients with disabilities. The use of a restorative glass-ionomer with optimal mechanical properties is, therefore, very important. Objective To te...

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Main Authors: Gustavo Fabian MOLINA, Ricardo Juan CABRAL, Ignacio MAZZOLA, Laura BRAIN LASCANO, Jo. E. FRENCKEN
Format: Article
Language:English
Published: University of São Paulo 2013-06-01
Series:Journal of Applied Oral Science
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572013000300243&lng=en&tlng=en
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author Gustavo Fabian MOLINA
Ricardo Juan CABRAL
Ignacio MAZZOLA
Laura BRAIN LASCANO
Jo. E. FRENCKEN
author_facet Gustavo Fabian MOLINA
Ricardo Juan CABRAL
Ignacio MAZZOLA
Laura BRAIN LASCANO
Jo. E. FRENCKEN
author_sort Gustavo Fabian MOLINA
collection DOAJ
description The Atraumatic Restorative Treatment (ART) approach was suggested to be a suitable method to treat enamel and dentine carious lesions in patients with disabilities. The use of a restorative glass-ionomer with optimal mechanical properties is, therefore, very important. Objective To test the null-hypotheses that no difference in diametral tensile, compressive and flexural strengths exists between: (1) The EQUIA system and (2) The Chemfil Rock (encapsulated glass-ionomers; test materials) and the Fuji 9 Gold Label and the Ketac Molar Easymix (hand-mixed conventional glass-ionomers; control materials); (3) The EQUIA system and Chemfil Rock. Material and Methods Specimens for testing flexural (n = 240) and diametral tensile (n=80) strengths were prepared according to standardized specifications; the compressive strength (n=80) was measured using a tooth-model of a class II ART restoration. ANOVA and Tukey B tests were used to test for significant differences between dependent and independent variables. Results The EQUIA system and Chemfil Rock had significantly higher mean scores for all the three strength variables than the Fuji 9 Gold Label and Ketac Molar Easymix (α=0.05). The EQUIA system had significant higher mean scores for diametral tensile and flexural strengths than the Chemfil Rock (α=0.05). Conclusion The two encapsulated high-viscosity glass-ionomers had significantly higher test values for diametral tensile, flexural and compressive strengths than the commonly used hand-mixed high-viscosity glass-ionomers.
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spelling doaj.art-6c093889894f462c9412c6734f39dc062022-12-21T18:30:25ZengUniversity of São PauloJournal of Applied Oral Science1678-77652013-06-0121324324910.1590/1679-775720130129S1678-77572013000300243Mechanical performance of encapsulated restorative glass-ionomer cements for use with Atraumatic Restorative Treatment (ART)Gustavo Fabian MOLINARicardo Juan CABRALIgnacio MAZZOLALaura BRAIN LASCANOJo. E. FRENCKENThe Atraumatic Restorative Treatment (ART) approach was suggested to be a suitable method to treat enamel and dentine carious lesions in patients with disabilities. The use of a restorative glass-ionomer with optimal mechanical properties is, therefore, very important. Objective To test the null-hypotheses that no difference in diametral tensile, compressive and flexural strengths exists between: (1) The EQUIA system and (2) The Chemfil Rock (encapsulated glass-ionomers; test materials) and the Fuji 9 Gold Label and the Ketac Molar Easymix (hand-mixed conventional glass-ionomers; control materials); (3) The EQUIA system and Chemfil Rock. Material and Methods Specimens for testing flexural (n = 240) and diametral tensile (n=80) strengths were prepared according to standardized specifications; the compressive strength (n=80) was measured using a tooth-model of a class II ART restoration. ANOVA and Tukey B tests were used to test for significant differences between dependent and independent variables. Results The EQUIA system and Chemfil Rock had significantly higher mean scores for all the three strength variables than the Fuji 9 Gold Label and Ketac Molar Easymix (α=0.05). The EQUIA system had significant higher mean scores for diametral tensile and flexural strengths than the Chemfil Rock (α=0.05). Conclusion The two encapsulated high-viscosity glass-ionomers had significantly higher test values for diametral tensile, flexural and compressive strengths than the commonly used hand-mixed high-viscosity glass-ionomers.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572013000300243&lng=en&tlng=enDentistryDental Atraumatic Restorative TreatmentCoatingsGlass ionomer cementsPhysical properties
spellingShingle Gustavo Fabian MOLINA
Ricardo Juan CABRAL
Ignacio MAZZOLA
Laura BRAIN LASCANO
Jo. E. FRENCKEN
Mechanical performance of encapsulated restorative glass-ionomer cements for use with Atraumatic Restorative Treatment (ART)
Journal of Applied Oral Science
Dentistry
Dental Atraumatic Restorative Treatment
Coatings
Glass ionomer cements
Physical properties
title Mechanical performance of encapsulated restorative glass-ionomer cements for use with Atraumatic Restorative Treatment (ART)
title_full Mechanical performance of encapsulated restorative glass-ionomer cements for use with Atraumatic Restorative Treatment (ART)
title_fullStr Mechanical performance of encapsulated restorative glass-ionomer cements for use with Atraumatic Restorative Treatment (ART)
title_full_unstemmed Mechanical performance of encapsulated restorative glass-ionomer cements for use with Atraumatic Restorative Treatment (ART)
title_short Mechanical performance of encapsulated restorative glass-ionomer cements for use with Atraumatic Restorative Treatment (ART)
title_sort mechanical performance of encapsulated restorative glass ionomer cements for use with atraumatic restorative treatment art
topic Dentistry
Dental Atraumatic Restorative Treatment
Coatings
Glass ionomer cements
Physical properties
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572013000300243&lng=en&tlng=en
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