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Effect of different concentrations of papain gel on orthodontic bracket bonding

BACKGROUND: The objective of this study was to verify the hypothesis that enamel deproteinization with papain gel at concentrations of 2%, 4%, 6%, 8%, and 10% increases shear bond strength as concentration increases. METHODS: A total of 180 bovine mandibular permanent incisors were used, divided int...

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Autores principales: Pithon, Matheus M, Ferraz, Caio S, Oliveira, Gabriel D Couto, Santos, Adrielle M Dos
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4384916/
https://www.ncbi.nlm.nih.gov/pubmed/24325920
http://dx.doi.org/10.1186/2196-1042-14-22
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author Pithon, Matheus M
Ferraz, Caio S
Oliveira, Gabriel D Couto
Santos, Adrielle M Dos
author_facet Pithon, Matheus M
Ferraz, Caio S
Oliveira, Gabriel D Couto
Santos, Adrielle M Dos
author_sort Pithon, Matheus M
collection PubMed
description BACKGROUND: The objective of this study was to verify the hypothesis that enamel deproteinization with papain gel at concentrations of 2%, 4%, 6%, 8%, and 10% increases shear bond strength as concentration increases. METHODS: A total of 180 bovine mandibular permanent incisors were used, divided into six groups (n = 30), and denominated as follows: group 1 is the control group (CG) in which brackets are bonded with resin-modified glass ionomer cement (RMGIC) according to the manufacturer's recommendations and groups 2, 3, 4, 5, and 6 have brackets bonded with RMGIC after enamel deproteinization with papain gel at concentrations of 2%, 4%, 6%, 8%, and 10%, respectively. After bonding, teeth were immersed in artificial saliva and kept at a temperature of 37°C for 24 h. Mechanical tests were then performed in a universal mechanical test machine EMIC DL 5000 (Sao Jose dos Pinhais, Brazil). Values obtained were submitted to analysis of variance and then to Tukey's test (p < 0.05). RESULTS: The results demonstrated that groups 5 and 6 showed the highest shear bond strength, differing statistically from the other groups (p < 0.05). CG with no papain gel used showed the lowest value and in turn showed no differences for groups 2, 3, and 4. As regards adhesive remnant index, CG showed statistical differences from the others. Groups 2, 3, 4, 5, and 6, in which papain gel was used, presented no statistical differences among them (p > 0.05). CONCLUSIONS: It was concluded that enamel deproteinization with 8% and 10% papain gel increases shear bond strength of orthodontic brackets bonded with RMGIC.
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spelling pubmed-43849162015-04-04 Effect of different concentrations of papain gel on orthodontic bracket bonding Pithon, Matheus M Ferraz, Caio S Oliveira, Gabriel D Couto Santos, Adrielle M Dos Prog Orthod Research BACKGROUND: The objective of this study was to verify the hypothesis that enamel deproteinization with papain gel at concentrations of 2%, 4%, 6%, 8%, and 10% increases shear bond strength as concentration increases. METHODS: A total of 180 bovine mandibular permanent incisors were used, divided into six groups (n = 30), and denominated as follows: group 1 is the control group (CG) in which brackets are bonded with resin-modified glass ionomer cement (RMGIC) according to the manufacturer's recommendations and groups 2, 3, 4, 5, and 6 have brackets bonded with RMGIC after enamel deproteinization with papain gel at concentrations of 2%, 4%, 6%, 8%, and 10%, respectively. After bonding, teeth were immersed in artificial saliva and kept at a temperature of 37°C for 24 h. Mechanical tests were then performed in a universal mechanical test machine EMIC DL 5000 (Sao Jose dos Pinhais, Brazil). Values obtained were submitted to analysis of variance and then to Tukey's test (p < 0.05). RESULTS: The results demonstrated that groups 5 and 6 showed the highest shear bond strength, differing statistically from the other groups (p < 0.05). CG with no papain gel used showed the lowest value and in turn showed no differences for groups 2, 3, and 4. As regards adhesive remnant index, CG showed statistical differences from the others. Groups 2, 3, 4, 5, and 6, in which papain gel was used, presented no statistical differences among them (p > 0.05). CONCLUSIONS: It was concluded that enamel deproteinization with 8% and 10% papain gel increases shear bond strength of orthodontic brackets bonded with RMGIC. Springer Berlin Heidelberg 2013-08-19 /pmc/articles/PMC4384916/ /pubmed/24325920 http://dx.doi.org/10.1186/2196-1042-14-22 Text en © Pithon et al.; licensee Springer. 2013 This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research
Pithon, Matheus M
Ferraz, Caio S
Oliveira, Gabriel D Couto
Santos, Adrielle M Dos
Effect of different concentrations of papain gel on orthodontic bracket bonding
title Effect of different concentrations of papain gel on orthodontic bracket bonding
title_full Effect of different concentrations of papain gel on orthodontic bracket bonding
title_fullStr Effect of different concentrations of papain gel on orthodontic bracket bonding
title_full_unstemmed Effect of different concentrations of papain gel on orthodontic bracket bonding
title_short Effect of different concentrations of papain gel on orthodontic bracket bonding
title_sort effect of different concentrations of papain gel on orthodontic bracket bonding
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4384916/
https://www.ncbi.nlm.nih.gov/pubmed/24325920
http://dx.doi.org/10.1186/2196-1042-14-22
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