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MASS LOSS OF FOUR COMMERCIALLY AVAILABLE HEAT-POLYMERIZED ACRYLIC RESINS AFTER TOOTHBRUSHING WITH THREE DIFFERENT DENTIFRICES

The association between a toothbrush and a dentifrice is the most used denture cleaning method. The purpose of this study was to evaluate the abrasiveness of specific and non-specific denture cleaning dentifrices on different heat-polymerized acrylic resins. Sixteen specimens (90x30x3mm) of each acr...

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Autores principales: Freitas-Pontes, Karina M., Silva-Lovato, Cláudia H., Paranhos, Helena F. O.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Faculdade de Odontologia de Bauru da Universidade de São Paulo 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4327588/
http://dx.doi.org/10.1590/S1678-77572009000200009
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author Freitas-Pontes, Karina M.
Silva-Lovato, Cláudia H.
Paranhos, Helena F. O.
author_facet Freitas-Pontes, Karina M.
Silva-Lovato, Cláudia H.
Paranhos, Helena F. O.
author_sort Freitas-Pontes, Karina M.
collection PubMed
description The association between a toothbrush and a dentifrice is the most used denture cleaning method. The purpose of this study was to evaluate the abrasiveness of specific and non-specific denture cleaning dentifrices on different heat-polymerized acrylic resins. Sixteen specimens (90x30x3mm) of each acrylic resin (QC-20, Lucitone 550, Clássico, Vipi-Cril) were prepared and randomly assigned to 4 groups: 1: control (distilled water), 2: Colgate, 3: Bonyplus and 4: Dentu-Creme. The specimens were subjected to simulated toothbrushing in an automatic brushing machine using 35,600 brush strokes for each specimen. Brushing abrasion run at a 200-g load with the specimens immersed in 2:1 dentifrice/water slurry. Specimens were reconditioned to constant mass and the mass loss (mg) was evaluated. Data were analyzed by 2-way ANOVA and Tukey's test (α=0.05). Analysis of dentifrices' abrasive particles was made by scanning electron microscopy. Colgate produced the greatest mass reduction (42.44 mg, p<0.05), followed by Dentu-Creme (33.60 mg). Bonyplus was the less abrasive (19.91 mg), similar to the control group (19.69 mg) (p>0.05). The mass loss values indicated that QC-20 (33.13 mg) and Lucitone 550 (33.05 mg) resins were less (p<0.05) resistant to abrasion than Clássico (26.04 mg) and Vipi-Cril (23.43 mg). In conclusion, Colgate produced the greatest abrasion. Specific dentifrices for dentures tend to cause less damage to acrylic resins.
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spelling pubmed-43275882015-02-26 MASS LOSS OF FOUR COMMERCIALLY AVAILABLE HEAT-POLYMERIZED ACRYLIC RESINS AFTER TOOTHBRUSHING WITH THREE DIFFERENT DENTIFRICES Freitas-Pontes, Karina M. Silva-Lovato, Cláudia H. Paranhos, Helena F. O. J Appl Oral Sci Original Article The association between a toothbrush and a dentifrice is the most used denture cleaning method. The purpose of this study was to evaluate the abrasiveness of specific and non-specific denture cleaning dentifrices on different heat-polymerized acrylic resins. Sixteen specimens (90x30x3mm) of each acrylic resin (QC-20, Lucitone 550, Clássico, Vipi-Cril) were prepared and randomly assigned to 4 groups: 1: control (distilled water), 2: Colgate, 3: Bonyplus and 4: Dentu-Creme. The specimens were subjected to simulated toothbrushing in an automatic brushing machine using 35,600 brush strokes for each specimen. Brushing abrasion run at a 200-g load with the specimens immersed in 2:1 dentifrice/water slurry. Specimens were reconditioned to constant mass and the mass loss (mg) was evaluated. Data were analyzed by 2-way ANOVA and Tukey's test (α=0.05). Analysis of dentifrices' abrasive particles was made by scanning electron microscopy. Colgate produced the greatest mass reduction (42.44 mg, p<0.05), followed by Dentu-Creme (33.60 mg). Bonyplus was the less abrasive (19.91 mg), similar to the control group (19.69 mg) (p>0.05). The mass loss values indicated that QC-20 (33.13 mg) and Lucitone 550 (33.05 mg) resins were less (p<0.05) resistant to abrasion than Clássico (26.04 mg) and Vipi-Cril (23.43 mg). In conclusion, Colgate produced the greatest abrasion. Specific dentifrices for dentures tend to cause less damage to acrylic resins. Faculdade de Odontologia de Bauru da Universidade de São Paulo 2009-04 /pmc/articles/PMC4327588/ http://dx.doi.org/10.1590/S1678-77572009000200009 Text en http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Freitas-Pontes, Karina M.
Silva-Lovato, Cláudia H.
Paranhos, Helena F. O.
MASS LOSS OF FOUR COMMERCIALLY AVAILABLE HEAT-POLYMERIZED ACRYLIC RESINS AFTER TOOTHBRUSHING WITH THREE DIFFERENT DENTIFRICES
title MASS LOSS OF FOUR COMMERCIALLY AVAILABLE HEAT-POLYMERIZED ACRYLIC RESINS AFTER TOOTHBRUSHING WITH THREE DIFFERENT DENTIFRICES
title_full MASS LOSS OF FOUR COMMERCIALLY AVAILABLE HEAT-POLYMERIZED ACRYLIC RESINS AFTER TOOTHBRUSHING WITH THREE DIFFERENT DENTIFRICES
title_fullStr MASS LOSS OF FOUR COMMERCIALLY AVAILABLE HEAT-POLYMERIZED ACRYLIC RESINS AFTER TOOTHBRUSHING WITH THREE DIFFERENT DENTIFRICES
title_full_unstemmed MASS LOSS OF FOUR COMMERCIALLY AVAILABLE HEAT-POLYMERIZED ACRYLIC RESINS AFTER TOOTHBRUSHING WITH THREE DIFFERENT DENTIFRICES
title_short MASS LOSS OF FOUR COMMERCIALLY AVAILABLE HEAT-POLYMERIZED ACRYLIC RESINS AFTER TOOTHBRUSHING WITH THREE DIFFERENT DENTIFRICES
title_sort mass loss of four commercially available heat-polymerized acrylic resins after toothbrushing with three different dentifrices
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4327588/
http://dx.doi.org/10.1590/S1678-77572009000200009
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