An in vitro evaluation of microleakage of resin based composites bonded to chlorhexidine-pretreated dentin by different protocols of a universal adhesive system

Purpose: This study compared microleakage of different resin based composite (RBC) materials bonded to dentin, after chlorhexidine (CHX) application, by different adhesion protocols of a universal adhesive system. Methods: Class V cavities were prepared on the buccal and lingual surfaces of 40 premo...

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Autores principales:	Mohammed S. Bin-Shuwaish, Alhanouf A. AlHussaini, Lina H. AlHudaithy, Shamma A. AlDukhiel, Abdullah S. Al-Jamhan
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Universal bond adhesive Microleakage 2% chlorhexidine Bulk-fill Conventional composite Medicine R Dentistry RK1-715
Acceso en línea:	https://doaj.org/article/ee040a66c6ed43038de0caa4d957bcad
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spelling	oai:doaj.org-article:ee040a66c6ed43038de0caa4d957bcad2021-11-10T04:19:53ZAn in vitro evaluation of microleakage of resin based composites bonded to chlorhexidine-pretreated dentin by different protocols of a universal adhesive system1013-905210.1016/j.sdentj.2020.09.006https://doaj.org/article/ee040a66c6ed43038de0caa4d957bcad2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1013905220307744https://doaj.org/toc/1013-9052Purpose: This study compared microleakage of different resin based composite (RBC) materials bonded to dentin, after chlorhexidine (CHX) application, by different adhesion protocols of a universal adhesive system. Methods: Class V cavities were prepared on the buccal and lingual surfaces of 40 premolar teeth. The “etch-and-rinse” technique of a universal bond adhesive system (Single Bond Universal Adhesive) was used on buccal preparations, while the “self-etch” protocol was used on the lingual surfaces. Two RBCs, one bulk fill (Filtek Bulk Fill [FBF]) and one conventional (Filtek Z350 XT [Z350XT]), were used. Teeth were divided into two groups of 20 teeth each, 10 per each RBC (n = 10): (1) control; and (2) pretreatment with 2% CHX. For FBF groups, teeth were restored with a single increment; however, for Z350XT, a layering technique was used. Teeth were aged by thermo-cycling and prepared for microleakage testing. Dye penetration was evaluated and scored from 0 to 4. Data were analyzed at a significance level of P < 0.05. Results: The highest microleakage mean scores were found in the control group of the etched margins for both RBCs (2.80 ± 1.033 FBF and 2.10 ± 1.370 Z350XT). The CHX-pretreated group showed significantly lower microleakage than the control for FBF only (P = 0.008). No significant difference was found between groups for the “self-etch” protocol (χ2 = 0.884, P = 0.08). No significant differences were found between FBF and Z350XT in all study groups (P > 0.2). Conclusions: When the “self-etch” protocol of the universal adhesive system was used, dentin microleakage was not affected by CHX-pretreatment when teeth were restored with bulk fill or conventional RBCs. In the “etch-and-rinse” protocol, CHX application improved the marginal seal before restoration with bulk fill material. However, in the absence of CHX, the “etch-and-rinse” protocol negatively affected marginal integrity.Mohammed S. Bin-ShuwaishAlhanouf A. AlHussainiLina H. AlHudaithyShamma A. AlDukhielAbdullah S. Al-JamhanElsevierarticleUniversal bond adhesiveMicroleakage2% chlorhexidineBulk-fillConventional compositeMedicineRDentistryRK1-715ENSaudi Dental Journal, Vol 33, Iss 7, Pp 503-510 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Universal bond adhesive Microleakage 2% chlorhexidine Bulk-fill Conventional composite Medicine R Dentistry RK1-715
spellingShingle	Universal bond adhesive Microleakage 2% chlorhexidine Bulk-fill Conventional composite Medicine R Dentistry RK1-715 Mohammed S. Bin-Shuwaish Alhanouf A. AlHussaini Lina H. AlHudaithy Shamma A. AlDukhiel Abdullah S. Al-Jamhan An in vitro evaluation of microleakage of resin based composites bonded to chlorhexidine-pretreated dentin by different protocols of a universal adhesive system
description	Purpose: This study compared microleakage of different resin based composite (RBC) materials bonded to dentin, after chlorhexidine (CHX) application, by different adhesion protocols of a universal adhesive system. Methods: Class V cavities were prepared on the buccal and lingual surfaces of 40 premolar teeth. The “etch-and-rinse” technique of a universal bond adhesive system (Single Bond Universal Adhesive) was used on buccal preparations, while the “self-etch” protocol was used on the lingual surfaces. Two RBCs, one bulk fill (Filtek Bulk Fill [FBF]) and one conventional (Filtek Z350 XT [Z350XT]), were used. Teeth were divided into two groups of 20 teeth each, 10 per each RBC (n = 10): (1) control; and (2) pretreatment with 2% CHX. For FBF groups, teeth were restored with a single increment; however, for Z350XT, a layering technique was used. Teeth were aged by thermo-cycling and prepared for microleakage testing. Dye penetration was evaluated and scored from 0 to 4. Data were analyzed at a significance level of P < 0.05. Results: The highest microleakage mean scores were found in the control group of the etched margins for both RBCs (2.80 ± 1.033 FBF and 2.10 ± 1.370 Z350XT). The CHX-pretreated group showed significantly lower microleakage than the control for FBF only (P = 0.008). No significant difference was found between groups for the “self-etch” protocol (χ2 = 0.884, P = 0.08). No significant differences were found between FBF and Z350XT in all study groups (P > 0.2). Conclusions: When the “self-etch” protocol of the universal adhesive system was used, dentin microleakage was not affected by CHX-pretreatment when teeth were restored with bulk fill or conventional RBCs. In the “etch-and-rinse” protocol, CHX application improved the marginal seal before restoration with bulk fill material. However, in the absence of CHX, the “etch-and-rinse” protocol negatively affected marginal integrity.
format	article
author	Mohammed S. Bin-Shuwaish Alhanouf A. AlHussaini Lina H. AlHudaithy Shamma A. AlDukhiel Abdullah S. Al-Jamhan
author_facet	Mohammed S. Bin-Shuwaish Alhanouf A. AlHussaini Lina H. AlHudaithy Shamma A. AlDukhiel Abdullah S. Al-Jamhan
author_sort	Mohammed S. Bin-Shuwaish
title	An in vitro evaluation of microleakage of resin based composites bonded to chlorhexidine-pretreated dentin by different protocols of a universal adhesive system
title_short	An in vitro evaluation of microleakage of resin based composites bonded to chlorhexidine-pretreated dentin by different protocols of a universal adhesive system
title_full	An in vitro evaluation of microleakage of resin based composites bonded to chlorhexidine-pretreated dentin by different protocols of a universal adhesive system
title_fullStr	An in vitro evaluation of microleakage of resin based composites bonded to chlorhexidine-pretreated dentin by different protocols of a universal adhesive system
title_full_unstemmed	An in vitro evaluation of microleakage of resin based composites bonded to chlorhexidine-pretreated dentin by different protocols of a universal adhesive system
title_sort	in vitro evaluation of microleakage of resin based composites bonded to chlorhexidine-pretreated dentin by different protocols of a universal adhesive system
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/ee040a66c6ed43038de0caa4d957bcad
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An in vitro evaluation of microleakage of resin based composites bonded to chlorhexidine-pretreated dentin by different protocols of a universal adhesive system

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