Evaluation of the effect of silicone residue after different surface treatments on shear bond strength of glass ionomer cement to the dentin surface

Aim: Use of silicone fit-checking material during cementation of fixed restoration has shown to leave residual silicone film after peeling off of fit checker (FC). This residual film reduced bond strength of cement to the inner surface of restoration. Silicone residue effect on tooth surface needs t...

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Main Authors: R Anusha, M C Suresh Sajjan, A V Rama Raju, D Bheemalingeswararao, Nukalamarri Om Brahma Prasad Chary
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2019-01-01
Series:The Journal of Indian Prosthodontic Society
Subjects:
Online Access:http://www.j-ips.org/article.asp?issn=0972-4052;year=2019;volume=19;issue=2;spage=126;epage=133;aulast=
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spelling doaj-5db57f9d438249f1bf7c5d4105fb38162020-11-24T21:37:14ZengWolters Kluwer Medknow PublicationsThe Journal of Indian Prosthodontic Society0972-40521998-40572019-01-0119212613310.4103/jips.jips_276_18Evaluation of the effect of silicone residue after different surface treatments on shear bond strength of glass ionomer cement to the dentin surfaceR AnushaM C Suresh SajjanA V Rama RajuD BheemalingeswararaoNukalamarri Om Brahma Prasad CharyAim: Use of silicone fit-checking material during cementation of fixed restoration has shown to leave residual silicone film after peeling off of fit checker (FC). This residual film reduced bond strength of cement to the inner surface of restoration. Silicone residue effect on tooth surface needs to be studied. The aim of this study was to evaluate the effect of residual silicone film on shear bond strength (SBS) of glass ionomer cement (GIC) to dentin surface and the efficacy of different surface treatments (STs) on dentin in the removal of silicone residue. Materials and Methods: Fifty freshly extracted human molars were individually mounted on acrylic blocks and occlusal surfaces were ground flat until dentine surface was exposed. Specimens were divided into five groups as follows: Group I: without application of FC (n = 10) as control group; Group II: without any ST after peeling off FC (n = 10); Group III: ST using wet pumice after peeling off FC (n = 10); Group IV: ST with 37% phosphoric acid after peeling off FC (n = 10); and Group V: ST with 10% polyacrylic acid after peeling off FC (n = 10). GIC was placed on the dentinal surface using polyvinyl mold and subjected to SBS test using universal testing machine. The debonded specimens were observed under stereomicroscope for the mode of failure. Selected debonded dentinal surfaces from each group were examined under scanning electron microscope. One-way analysis of variance and Tukey's test. Results: Group II (1.083 MPa) showed significantly lower SBS. Among the STs, Group III (2.047 MPa) was comparable to the control group whereas Group IV (1.376 MPa) and Group V (1.63 MPa) were significantly lower. There was no significant association between failures and groups at P = 0.257. Conclusion: The residue of silicone was demonstrable on dentin surface after peeling off FC and caused a significant reduction in SBS between GIC and dentin. ST with wet pumice is found to be beneficial in removing silicone residue and improving SBS, followed by phosphoric acid and polyacrylic acid.http://www.j-ips.org/article.asp?issn=0972-4052;year=2019;volume=19;issue=2;spage=126;epage=133;aulast=Fit checkershear bond strengthsilicone residuesurface treatment
collection DOAJ
language English
format Article
sources DOAJ
author R Anusha
M C Suresh Sajjan
A V Rama Raju
D Bheemalingeswararao
Nukalamarri Om Brahma Prasad Chary
spellingShingle R Anusha
M C Suresh Sajjan
A V Rama Raju
D Bheemalingeswararao
Nukalamarri Om Brahma Prasad Chary
Evaluation of the effect of silicone residue after different surface treatments on shear bond strength of glass ionomer cement to the dentin surface
The Journal of Indian Prosthodontic Society
Fit checker
shear bond strength
silicone residue
surface treatment
author_facet R Anusha
M C Suresh Sajjan
A V Rama Raju
D Bheemalingeswararao
Nukalamarri Om Brahma Prasad Chary
author_sort R Anusha
title Evaluation of the effect of silicone residue after different surface treatments on shear bond strength of glass ionomer cement to the dentin surface
title_short Evaluation of the effect of silicone residue after different surface treatments on shear bond strength of glass ionomer cement to the dentin surface
title_full Evaluation of the effect of silicone residue after different surface treatments on shear bond strength of glass ionomer cement to the dentin surface
title_fullStr Evaluation of the effect of silicone residue after different surface treatments on shear bond strength of glass ionomer cement to the dentin surface
title_full_unstemmed Evaluation of the effect of silicone residue after different surface treatments on shear bond strength of glass ionomer cement to the dentin surface
title_sort evaluation of the effect of silicone residue after different surface treatments on shear bond strength of glass ionomer cement to the dentin surface
publisher Wolters Kluwer Medknow Publications
series The Journal of Indian Prosthodontic Society
issn 0972-4052
1998-4057
publishDate 2019-01-01
description Aim: Use of silicone fit-checking material during cementation of fixed restoration has shown to leave residual silicone film after peeling off of fit checker (FC). This residual film reduced bond strength of cement to the inner surface of restoration. Silicone residue effect on tooth surface needs to be studied. The aim of this study was to evaluate the effect of residual silicone film on shear bond strength (SBS) of glass ionomer cement (GIC) to dentin surface and the efficacy of different surface treatments (STs) on dentin in the removal of silicone residue. Materials and Methods: Fifty freshly extracted human molars were individually mounted on acrylic blocks and occlusal surfaces were ground flat until dentine surface was exposed. Specimens were divided into five groups as follows: Group I: without application of FC (n = 10) as control group; Group II: without any ST after peeling off FC (n = 10); Group III: ST using wet pumice after peeling off FC (n = 10); Group IV: ST with 37% phosphoric acid after peeling off FC (n = 10); and Group V: ST with 10% polyacrylic acid after peeling off FC (n = 10). GIC was placed on the dentinal surface using polyvinyl mold and subjected to SBS test using universal testing machine. The debonded specimens were observed under stereomicroscope for the mode of failure. Selected debonded dentinal surfaces from each group were examined under scanning electron microscope. One-way analysis of variance and Tukey's test. Results: Group II (1.083 MPa) showed significantly lower SBS. Among the STs, Group III (2.047 MPa) was comparable to the control group whereas Group IV (1.376 MPa) and Group V (1.63 MPa) were significantly lower. There was no significant association between failures and groups at P = 0.257. Conclusion: The residue of silicone was demonstrable on dentin surface after peeling off FC and caused a significant reduction in SBS between GIC and dentin. ST with wet pumice is found to be beneficial in removing silicone residue and improving SBS, followed by phosphoric acid and polyacrylic acid.
topic Fit checker
shear bond strength
silicone residue
surface treatment
url http://www.j-ips.org/article.asp?issn=0972-4052;year=2019;volume=19;issue=2;spage=126;epage=133;aulast=
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