Using bonding agent prior to pits and fissure sealant application enhances the microtensile bond strength and the interface morphology

Background: A pits and fissures sealant is an effective method for preventing dental caries. Using a bonding agent before applying the sealant may increase its retention. This study aimed to compare the microtensile strength (µTBS) of a fissure sealant with and without a bonding agent and to charact...

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Autores principales:	Ahmed Almahdy, Ahmed AL-Otaibi, Abdulmajeed Binhamdan, Yaser AlNatheer, Nasser Alqahtani, Ali Alrahlah, Sahar Albarakati
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Fissure sealant Bonding Microtensile bond strength Confocal laser scanning microscopy Medicine R Dentistry RK1-715
Acceso en línea:	https://doaj.org/article/17deba5aef1d411b85478e558a177739
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spelling	oai:doaj.org-article:17deba5aef1d411b85478e558a1777392021-11-10T04:19:59ZUsing bonding agent prior to pits and fissure sealant application enhances the microtensile bond strength and the interface morphology1013-905210.1016/j.sdentj.2020.09.008https://doaj.org/article/17deba5aef1d411b85478e558a1777392021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1013905220307768https://doaj.org/toc/1013-9052Background: A pits and fissures sealant is an effective method for preventing dental caries. Using a bonding agent before applying the sealant may increase its retention. This study aimed to compare the microtensile strength (µTBS) of a fissure sealant with and without a bonding agent and to characterize the enamel-sealant interface using confocal laser scanning microscopy (CLSM). The null hypothesis was that the use of a bonding agent before fissure sealant application would not change the microtensile strength or the enamel-sealant interface. Materials and methods: Twenty caries-free premolars were used. Each tooth was divided into four parts. The first two parts were assigned to the bonded group, where a bonding system was used before sealant application. The remaining two parts were treated only with a fissure sealant (i.e., the nonbonded group). In each group, the µTBS was examined after 24 h (n = 20) and after a 3-month aging period (n = 20). Five other caries-free extracted premolars were used to assess the enamel-sealant interface using CLSM. Two-way analysis of variance (ANOVA) and Pearson chi-square statistical analysis tests were used to analyze the µTBS and the enamel-sealant interface, respectively. Results: The mean µTBS for the bonded group was significantly higher (p = 0.001) in the immediate group (36.87 ± 14.95 MPa) and the aged group (31.08 ± 15.88 MPa) than in the respective nonbonded groups (19.77 ± 9.67 MPa and 19.52 ± 14.14 MPa). The µTBS was not significantly different in either group after aging (p = 0.46 [bonded group] and p = 0.98 [nonbonded group]). In addition, using a dental adhesive, before applying a fissure sealant resulted in a significantly higher (53%) resin penetration into the enamel with the continuous integrity of the resin. Conclusion: The use of a bonding agent before the application of fissure sealant resulted in superior microtensile bond strength immediately and after aging. In addition, the enamel-sealant interface characteristics were improved.Ahmed AlmahdyAhmed AL-OtaibiAbdulmajeed BinhamdanYaser AlNatheerNasser AlqahtaniAli AlrahlahSahar AlbarakatiElsevierarticleFissure sealantBondingMicrotensile bond strengthConfocal laser scanning microscopyMedicineRDentistryRK1-715ENSaudi Dental Journal, Vol 33, Iss 7, Pp 487-494 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Fissure sealant Bonding Microtensile bond strength Confocal laser scanning microscopy Medicine R Dentistry RK1-715
spellingShingle	Fissure sealant Bonding Microtensile bond strength Confocal laser scanning microscopy Medicine R Dentistry RK1-715 Ahmed Almahdy Ahmed AL-Otaibi Abdulmajeed Binhamdan Yaser AlNatheer Nasser Alqahtani Ali Alrahlah Sahar Albarakati Using bonding agent prior to pits and fissure sealant application enhances the microtensile bond strength and the interface morphology
description	Background: A pits and fissures sealant is an effective method for preventing dental caries. Using a bonding agent before applying the sealant may increase its retention. This study aimed to compare the microtensile strength (µTBS) of a fissure sealant with and without a bonding agent and to characterize the enamel-sealant interface using confocal laser scanning microscopy (CLSM). The null hypothesis was that the use of a bonding agent before fissure sealant application would not change the microtensile strength or the enamel-sealant interface. Materials and methods: Twenty caries-free premolars were used. Each tooth was divided into four parts. The first two parts were assigned to the bonded group, where a bonding system was used before sealant application. The remaining two parts were treated only with a fissure sealant (i.e., the nonbonded group). In each group, the µTBS was examined after 24 h (n = 20) and after a 3-month aging period (n = 20). Five other caries-free extracted premolars were used to assess the enamel-sealant interface using CLSM. Two-way analysis of variance (ANOVA) and Pearson chi-square statistical analysis tests were used to analyze the µTBS and the enamel-sealant interface, respectively. Results: The mean µTBS for the bonded group was significantly higher (p = 0.001) in the immediate group (36.87 ± 14.95 MPa) and the aged group (31.08 ± 15.88 MPa) than in the respective nonbonded groups (19.77 ± 9.67 MPa and 19.52 ± 14.14 MPa). The µTBS was not significantly different in either group after aging (p = 0.46 [bonded group] and p = 0.98 [nonbonded group]). In addition, using a dental adhesive, before applying a fissure sealant resulted in a significantly higher (53%) resin penetration into the enamel with the continuous integrity of the resin. Conclusion: The use of a bonding agent before the application of fissure sealant resulted in superior microtensile bond strength immediately and after aging. In addition, the enamel-sealant interface characteristics were improved.
format	article
author	Ahmed Almahdy Ahmed AL-Otaibi Abdulmajeed Binhamdan Yaser AlNatheer Nasser Alqahtani Ali Alrahlah Sahar Albarakati
author_facet	Ahmed Almahdy Ahmed AL-Otaibi Abdulmajeed Binhamdan Yaser AlNatheer Nasser Alqahtani Ali Alrahlah Sahar Albarakati
author_sort	Ahmed Almahdy
title	Using bonding agent prior to pits and fissure sealant application enhances the microtensile bond strength and the interface morphology
title_short	Using bonding agent prior to pits and fissure sealant application enhances the microtensile bond strength and the interface morphology
title_full	Using bonding agent prior to pits and fissure sealant application enhances the microtensile bond strength and the interface morphology
title_fullStr	Using bonding agent prior to pits and fissure sealant application enhances the microtensile bond strength and the interface morphology
title_full_unstemmed	Using bonding agent prior to pits and fissure sealant application enhances the microtensile bond strength and the interface morphology
title_sort	using bonding agent prior to pits and fissure sealant application enhances the microtensile bond strength and the interface morphology
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/17deba5aef1d411b85478e558a177739
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Using bonding agent prior to pits and fissure sealant application enhances the microtensile bond strength and the interface morphology

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