Evaluation of microleakage in Class II composite restorations: Bonded-base and bulk-fill techniques

Background: This study compared microleakage of Class II cavities restored using bonded-base and bulk-fill techniques with different bases.Materials and Methods: In this in vitro study, in 60 extracted human molars, standardized (4 mm × 2 mm × 8 mm) Class II cavities were prepared, such that the gin...
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Autor*in:	Atiyeh Feiz [verfasserIn] Marzieh Sajedi [verfasserIn] Niloufar Jafari [verfasserIn] Edward J. Swift [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	composite resin dental leakage flowable composite liner resin-modified glass ionomer bulk-fill composite resin

Übergeordnetes Werk:	In: Dental Research Journal - Wolters Kluwer Medknow Publications, 2008, 18(2021), 1, Seite 89-89
Übergeordnetes Werk:	volume:18 ; year:2021 ; number:1 ; pages:89-89

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc Journal toc

DOI / URN:	10.4103/1735-3327.328757

Katalog-ID:	DOAJ077846354

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520			\|a Background: This study compared microleakage of Class II cavities restored using bonded-base and bulk-fill techniques with different bases.Materials and Methods: In this in vitro study, in 60 extracted human molars, standardized (4 mm × 2 mm × 8 mm) Class II cavities were prepared, such that the gingival floor was located 1 mm below the CEJ. The teeth were randomly divided into five groups and filled with: (1) Fuji II LC + x-tra fil, (2) Ionoseal + x-tra fil, (3) x-tra base + x-tra fil, (4) Grandio Flow + x-tra fil, and (5) x-tra fil only [control group]; in open-sandwich technique, the base thickness was 1 mm. The bases were coated all gingival floor. Except for the first group, where dentin conditioner was used, the Clearfil SE bond was applied before application of the bases and restorative materials as a bonding agent. After 500 thermocycles between 5°C and 55°C, the specimens were immersed in 0.5% basic fuchsine solution for 24 h. The restored teeth were sectioned, and the dye penetration in gingival floor was observed by a stereomicroscope at ×32. The data were analyzed using Kruskal–Wallis and Mann–Whitney tests in SPSS software. The significance was determined at 0.05 confidence interval.Results: The statistical analysis revealed a significant difference in microleakage among the study groups (P < 0.001). The Ionoseal group followed by the control group (x-tra fil composite) had the greatest microleakage. Except for the Ionoseal group, all other groups had significantly less microleakage than the control group.Conclusion: The use of bonded-base techniques could reduce microleakage, including those in bulk-fill composite restorations.
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allfields	10.4103/1735-3327.328757 doi (DE-627)DOAJ077846354 (DE-599)DOAJ6b29c72c60cd4519a5e732af22bcc209 DE-627 ger DE-627 rakwb eng RK1-715 Atiyeh Feiz verfasserin aut Evaluation of microleakage in Class II composite restorations: Bonded-base and bulk-fill techniques 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: This study compared microleakage of Class II cavities restored using bonded-base and bulk-fill techniques with different bases.Materials and Methods: In this in vitro study, in 60 extracted human molars, standardized (4 mm × 2 mm × 8 mm) Class II cavities were prepared, such that the gingival floor was located 1 mm below the CEJ. The teeth were randomly divided into five groups and filled with: (1) Fuji II LC + x-tra fil, (2) Ionoseal + x-tra fil, (3) x-tra base + x-tra fil, (4) Grandio Flow + x-tra fil, and (5) x-tra fil only [control group]; in open-sandwich technique, the base thickness was 1 mm. The bases were coated all gingival floor. Except for the first group, where dentin conditioner was used, the Clearfil SE bond was applied before application of the bases and restorative materials as a bonding agent. After 500 thermocycles between 5°C and 55°C, the specimens were immersed in 0.5% basic fuchsine solution for 24 h. The restored teeth were sectioned, and the dye penetration in gingival floor was observed by a stereomicroscope at ×32. The data were analyzed using Kruskal–Wallis and Mann–Whitney tests in SPSS software. The significance was determined at 0.05 confidence interval.Results: The statistical analysis revealed a significant difference in microleakage among the study groups (P < 0.001). The Ionoseal group followed by the control group (x-tra fil composite) had the greatest microleakage. Except for the Ionoseal group, all other groups had significantly less microleakage than the control group.Conclusion: The use of bonded-base techniques could reduce microleakage, including those in bulk-fill composite restorations. composite resin dental leakage flowable composite liner resin-modified glass ionomer bulk-fill composite resin Dentistry Marzieh Sajedi verfasserin aut Niloufar Jafari verfasserin aut Edward J. Swift verfasserin aut In Dental Research Journal Wolters Kluwer Medknow Publications, 2008 18(2021), 1, Seite 89-89 (DE-627)561316473 (DE-600)2418290-4 20080255 nnns volume:18 year:2021 number:1 pages:89-89 https://doi.org/10.4103/1735-3327.328757 kostenfrei https://doaj.org/article/6b29c72c60cd4519a5e732af22bcc209 kostenfrei http://www.drjjournal.net/article.asp?issn=1735-3327;year=2021;volume=18;issue=1;spage=89;epage=89;aulast=Feiz kostenfrei https://doaj.org/toc/1735-3327 Journal toc kostenfrei https://doaj.org/toc/2008-0255 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2021 1 89-89
spelling	10.4103/1735-3327.328757 doi (DE-627)DOAJ077846354 (DE-599)DOAJ6b29c72c60cd4519a5e732af22bcc209 DE-627 ger DE-627 rakwb eng RK1-715 Atiyeh Feiz verfasserin aut Evaluation of microleakage in Class II composite restorations: Bonded-base and bulk-fill techniques 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: This study compared microleakage of Class II cavities restored using bonded-base and bulk-fill techniques with different bases.Materials and Methods: In this in vitro study, in 60 extracted human molars, standardized (4 mm × 2 mm × 8 mm) Class II cavities were prepared, such that the gingival floor was located 1 mm below the CEJ. The teeth were randomly divided into five groups and filled with: (1) Fuji II LC + x-tra fil, (2) Ionoseal + x-tra fil, (3) x-tra base + x-tra fil, (4) Grandio Flow + x-tra fil, and (5) x-tra fil only [control group]; in open-sandwich technique, the base thickness was 1 mm. The bases were coated all gingival floor. Except for the first group, where dentin conditioner was used, the Clearfil SE bond was applied before application of the bases and restorative materials as a bonding agent. After 500 thermocycles between 5°C and 55°C, the specimens were immersed in 0.5% basic fuchsine solution for 24 h. The restored teeth were sectioned, and the dye penetration in gingival floor was observed by a stereomicroscope at ×32. The data were analyzed using Kruskal–Wallis and Mann–Whitney tests in SPSS software. The significance was determined at 0.05 confidence interval.Results: The statistical analysis revealed a significant difference in microleakage among the study groups (P < 0.001). The Ionoseal group followed by the control group (x-tra fil composite) had the greatest microleakage. Except for the Ionoseal group, all other groups had significantly less microleakage than the control group.Conclusion: The use of bonded-base techniques could reduce microleakage, including those in bulk-fill composite restorations. composite resin dental leakage flowable composite liner resin-modified glass ionomer bulk-fill composite resin Dentistry Marzieh Sajedi verfasserin aut Niloufar Jafari verfasserin aut Edward J. Swift verfasserin aut In Dental Research Journal Wolters Kluwer Medknow Publications, 2008 18(2021), 1, Seite 89-89 (DE-627)561316473 (DE-600)2418290-4 20080255 nnns volume:18 year:2021 number:1 pages:89-89 https://doi.org/10.4103/1735-3327.328757 kostenfrei https://doaj.org/article/6b29c72c60cd4519a5e732af22bcc209 kostenfrei http://www.drjjournal.net/article.asp?issn=1735-3327;year=2021;volume=18;issue=1;spage=89;epage=89;aulast=Feiz kostenfrei https://doaj.org/toc/1735-3327 Journal toc kostenfrei https://doaj.org/toc/2008-0255 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2021 1 89-89
allfields_unstemmed	10.4103/1735-3327.328757 doi (DE-627)DOAJ077846354 (DE-599)DOAJ6b29c72c60cd4519a5e732af22bcc209 DE-627 ger DE-627 rakwb eng RK1-715 Atiyeh Feiz verfasserin aut Evaluation of microleakage in Class II composite restorations: Bonded-base and bulk-fill techniques 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: This study compared microleakage of Class II cavities restored using bonded-base and bulk-fill techniques with different bases.Materials and Methods: In this in vitro study, in 60 extracted human molars, standardized (4 mm × 2 mm × 8 mm) Class II cavities were prepared, such that the gingival floor was located 1 mm below the CEJ. The teeth were randomly divided into five groups and filled with: (1) Fuji II LC + x-tra fil, (2) Ionoseal + x-tra fil, (3) x-tra base + x-tra fil, (4) Grandio Flow + x-tra fil, and (5) x-tra fil only [control group]; in open-sandwich technique, the base thickness was 1 mm. The bases were coated all gingival floor. Except for the first group, where dentin conditioner was used, the Clearfil SE bond was applied before application of the bases and restorative materials as a bonding agent. After 500 thermocycles between 5°C and 55°C, the specimens were immersed in 0.5% basic fuchsine solution for 24 h. The restored teeth were sectioned, and the dye penetration in gingival floor was observed by a stereomicroscope at ×32. The data were analyzed using Kruskal–Wallis and Mann–Whitney tests in SPSS software. The significance was determined at 0.05 confidence interval.Results: The statistical analysis revealed a significant difference in microleakage among the study groups (P < 0.001). The Ionoseal group followed by the control group (x-tra fil composite) had the greatest microleakage. Except for the Ionoseal group, all other groups had significantly less microleakage than the control group.Conclusion: The use of bonded-base techniques could reduce microleakage, including those in bulk-fill composite restorations. composite resin dental leakage flowable composite liner resin-modified glass ionomer bulk-fill composite resin Dentistry Marzieh Sajedi verfasserin aut Niloufar Jafari verfasserin aut Edward J. Swift verfasserin aut In Dental Research Journal Wolters Kluwer Medknow Publications, 2008 18(2021), 1, Seite 89-89 (DE-627)561316473 (DE-600)2418290-4 20080255 nnns volume:18 year:2021 number:1 pages:89-89 https://doi.org/10.4103/1735-3327.328757 kostenfrei https://doaj.org/article/6b29c72c60cd4519a5e732af22bcc209 kostenfrei http://www.drjjournal.net/article.asp?issn=1735-3327;year=2021;volume=18;issue=1;spage=89;epage=89;aulast=Feiz kostenfrei https://doaj.org/toc/1735-3327 Journal toc kostenfrei https://doaj.org/toc/2008-0255 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2021 1 89-89
allfieldsGer	10.4103/1735-3327.328757 doi (DE-627)DOAJ077846354 (DE-599)DOAJ6b29c72c60cd4519a5e732af22bcc209 DE-627 ger DE-627 rakwb eng RK1-715 Atiyeh Feiz verfasserin aut Evaluation of microleakage in Class II composite restorations: Bonded-base and bulk-fill techniques 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: This study compared microleakage of Class II cavities restored using bonded-base and bulk-fill techniques with different bases.Materials and Methods: In this in vitro study, in 60 extracted human molars, standardized (4 mm × 2 mm × 8 mm) Class II cavities were prepared, such that the gingival floor was located 1 mm below the CEJ. The teeth were randomly divided into five groups and filled with: (1) Fuji II LC + x-tra fil, (2) Ionoseal + x-tra fil, (3) x-tra base + x-tra fil, (4) Grandio Flow + x-tra fil, and (5) x-tra fil only [control group]; in open-sandwich technique, the base thickness was 1 mm. The bases were coated all gingival floor. Except for the first group, where dentin conditioner was used, the Clearfil SE bond was applied before application of the bases and restorative materials as a bonding agent. After 500 thermocycles between 5°C and 55°C, the specimens were immersed in 0.5% basic fuchsine solution for 24 h. The restored teeth were sectioned, and the dye penetration in gingival floor was observed by a stereomicroscope at ×32. The data were analyzed using Kruskal–Wallis and Mann–Whitney tests in SPSS software. The significance was determined at 0.05 confidence interval.Results: The statistical analysis revealed a significant difference in microleakage among the study groups (P < 0.001). The Ionoseal group followed by the control group (x-tra fil composite) had the greatest microleakage. Except for the Ionoseal group, all other groups had significantly less microleakage than the control group.Conclusion: The use of bonded-base techniques could reduce microleakage, including those in bulk-fill composite restorations. composite resin dental leakage flowable composite liner resin-modified glass ionomer bulk-fill composite resin Dentistry Marzieh Sajedi verfasserin aut Niloufar Jafari verfasserin aut Edward J. Swift verfasserin aut In Dental Research Journal Wolters Kluwer Medknow Publications, 2008 18(2021), 1, Seite 89-89 (DE-627)561316473 (DE-600)2418290-4 20080255 nnns volume:18 year:2021 number:1 pages:89-89 https://doi.org/10.4103/1735-3327.328757 kostenfrei https://doaj.org/article/6b29c72c60cd4519a5e732af22bcc209 kostenfrei http://www.drjjournal.net/article.asp?issn=1735-3327;year=2021;volume=18;issue=1;spage=89;epage=89;aulast=Feiz kostenfrei https://doaj.org/toc/1735-3327 Journal toc kostenfrei https://doaj.org/toc/2008-0255 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2021 1 89-89
allfieldsSound	10.4103/1735-3327.328757 doi (DE-627)DOAJ077846354 (DE-599)DOAJ6b29c72c60cd4519a5e732af22bcc209 DE-627 ger DE-627 rakwb eng RK1-715 Atiyeh Feiz verfasserin aut Evaluation of microleakage in Class II composite restorations: Bonded-base and bulk-fill techniques 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: This study compared microleakage of Class II cavities restored using bonded-base and bulk-fill techniques with different bases.Materials and Methods: In this in vitro study, in 60 extracted human molars, standardized (4 mm × 2 mm × 8 mm) Class II cavities were prepared, such that the gingival floor was located 1 mm below the CEJ. The teeth were randomly divided into five groups and filled with: (1) Fuji II LC + x-tra fil, (2) Ionoseal + x-tra fil, (3) x-tra base + x-tra fil, (4) Grandio Flow + x-tra fil, and (5) x-tra fil only [control group]; in open-sandwich technique, the base thickness was 1 mm. The bases were coated all gingival floor. Except for the first group, where dentin conditioner was used, the Clearfil SE bond was applied before application of the bases and restorative materials as a bonding agent. After 500 thermocycles between 5°C and 55°C, the specimens were immersed in 0.5% basic fuchsine solution for 24 h. The restored teeth were sectioned, and the dye penetration in gingival floor was observed by a stereomicroscope at ×32. The data were analyzed using Kruskal–Wallis and Mann–Whitney tests in SPSS software. The significance was determined at 0.05 confidence interval.Results: The statistical analysis revealed a significant difference in microleakage among the study groups (P < 0.001). The Ionoseal group followed by the control group (x-tra fil composite) had the greatest microleakage. Except for the Ionoseal group, all other groups had significantly less microleakage than the control group.Conclusion: The use of bonded-base techniques could reduce microleakage, including those in bulk-fill composite restorations. composite resin dental leakage flowable composite liner resin-modified glass ionomer bulk-fill composite resin Dentistry Marzieh Sajedi verfasserin aut Niloufar Jafari verfasserin aut Edward J. Swift verfasserin aut In Dental Research Journal Wolters Kluwer Medknow Publications, 2008 18(2021), 1, Seite 89-89 (DE-627)561316473 (DE-600)2418290-4 20080255 nnns volume:18 year:2021 number:1 pages:89-89 https://doi.org/10.4103/1735-3327.328757 kostenfrei https://doaj.org/article/6b29c72c60cd4519a5e732af22bcc209 kostenfrei http://www.drjjournal.net/article.asp?issn=1735-3327;year=2021;volume=18;issue=1;spage=89;epage=89;aulast=Feiz kostenfrei https://doaj.org/toc/1735-3327 Journal toc kostenfrei https://doaj.org/toc/2008-0255 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2021 1 89-89
language	English
source	In Dental Research Journal 18(2021), 1, Seite 89-89 volume:18 year:2021 number:1 pages:89-89
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authorswithroles_txt_mv	Atiyeh Feiz @@aut@@ Marzieh Sajedi @@aut@@ Niloufar Jafari @@aut@@ Edward J. Swift @@aut@@
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spellingShingle	Atiyeh Feiz misc RK1-715 misc composite resin misc dental leakage misc flowable composite liner misc resin-modified glass ionomer misc bulk-fill composite resin misc Dentistry Evaluation of microleakage in Class II composite restorations: Bonded-base and bulk-fill techniques
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topic_title	RK1-715 Evaluation of microleakage in Class II composite restorations: Bonded-base and bulk-fill techniques composite resin dental leakage flowable composite liner resin-modified glass ionomer bulk-fill composite resin
topic	misc RK1-715 misc composite resin misc dental leakage misc flowable composite liner misc resin-modified glass ionomer misc bulk-fill composite resin misc Dentistry
topic_unstemmed	misc RK1-715 misc composite resin misc dental leakage misc flowable composite liner misc resin-modified glass ionomer misc bulk-fill composite resin misc Dentistry
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title	Evaluation of microleakage in Class II composite restorations: Bonded-base and bulk-fill techniques
ctrlnum	(DE-627)DOAJ077846354 (DE-599)DOAJ6b29c72c60cd4519a5e732af22bcc209
title_full	Evaluation of microleakage in Class II composite restorations: Bonded-base and bulk-fill techniques
author_sort	Atiyeh Feiz
journal	Dental Research Journal
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author_browse	Atiyeh Feiz Marzieh Sajedi Niloufar Jafari Edward J. Swift
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doi_str_mv	10.4103/1735-3327.328757
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title_sort	evaluation of microleakage in class ii composite restorations: bonded-base and bulk-fill techniques
callnumber	RK1-715
title_auth	Evaluation of microleakage in Class II composite restorations: Bonded-base and bulk-fill techniques
abstract	Background: This study compared microleakage of Class II cavities restored using bonded-base and bulk-fill techniques with different bases.Materials and Methods: In this in vitro study, in 60 extracted human molars, standardized (4 mm × 2 mm × 8 mm) Class II cavities were prepared, such that the gingival floor was located 1 mm below the CEJ. The teeth were randomly divided into five groups and filled with: (1) Fuji II LC + x-tra fil, (2) Ionoseal + x-tra fil, (3) x-tra base + x-tra fil, (4) Grandio Flow + x-tra fil, and (5) x-tra fil only [control group]; in open-sandwich technique, the base thickness was 1 mm. The bases were coated all gingival floor. Except for the first group, where dentin conditioner was used, the Clearfil SE bond was applied before application of the bases and restorative materials as a bonding agent. After 500 thermocycles between 5°C and 55°C, the specimens were immersed in 0.5% basic fuchsine solution for 24 h. The restored teeth were sectioned, and the dye penetration in gingival floor was observed by a stereomicroscope at ×32. The data were analyzed using Kruskal–Wallis and Mann–Whitney tests in SPSS software. The significance was determined at 0.05 confidence interval.Results: The statistical analysis revealed a significant difference in microleakage among the study groups (P < 0.001). The Ionoseal group followed by the control group (x-tra fil composite) had the greatest microleakage. Except for the Ionoseal group, all other groups had significantly less microleakage than the control group.Conclusion: The use of bonded-base techniques could reduce microleakage, including those in bulk-fill composite restorations.
abstractGer	Background: This study compared microleakage of Class II cavities restored using bonded-base and bulk-fill techniques with different bases.Materials and Methods: In this in vitro study, in 60 extracted human molars, standardized (4 mm × 2 mm × 8 mm) Class II cavities were prepared, such that the gingival floor was located 1 mm below the CEJ. The teeth were randomly divided into five groups and filled with: (1) Fuji II LC + x-tra fil, (2) Ionoseal + x-tra fil, (3) x-tra base + x-tra fil, (4) Grandio Flow + x-tra fil, and (5) x-tra fil only [control group]; in open-sandwich technique, the base thickness was 1 mm. The bases were coated all gingival floor. Except for the first group, where dentin conditioner was used, the Clearfil SE bond was applied before application of the bases and restorative materials as a bonding agent. After 500 thermocycles between 5°C and 55°C, the specimens were immersed in 0.5% basic fuchsine solution for 24 h. The restored teeth were sectioned, and the dye penetration in gingival floor was observed by a stereomicroscope at ×32. The data were analyzed using Kruskal–Wallis and Mann–Whitney tests in SPSS software. The significance was determined at 0.05 confidence interval.Results: The statistical analysis revealed a significant difference in microleakage among the study groups (P < 0.001). The Ionoseal group followed by the control group (x-tra fil composite) had the greatest microleakage. Except for the Ionoseal group, all other groups had significantly less microleakage than the control group.Conclusion: The use of bonded-base techniques could reduce microleakage, including those in bulk-fill composite restorations.
abstract_unstemmed	Background: This study compared microleakage of Class II cavities restored using bonded-base and bulk-fill techniques with different bases.Materials and Methods: In this in vitro study, in 60 extracted human molars, standardized (4 mm × 2 mm × 8 mm) Class II cavities were prepared, such that the gingival floor was located 1 mm below the CEJ. The teeth were randomly divided into five groups and filled with: (1) Fuji II LC + x-tra fil, (2) Ionoseal + x-tra fil, (3) x-tra base + x-tra fil, (4) Grandio Flow + x-tra fil, and (5) x-tra fil only [control group]; in open-sandwich technique, the base thickness was 1 mm. The bases were coated all gingival floor. Except for the first group, where dentin conditioner was used, the Clearfil SE bond was applied before application of the bases and restorative materials as a bonding agent. After 500 thermocycles between 5°C and 55°C, the specimens were immersed in 0.5% basic fuchsine solution for 24 h. The restored teeth were sectioned, and the dye penetration in gingival floor was observed by a stereomicroscope at ×32. The data were analyzed using Kruskal–Wallis and Mann–Whitney tests in SPSS software. The significance was determined at 0.05 confidence interval.Results: The statistical analysis revealed a significant difference in microleakage among the study groups (P < 0.001). The Ionoseal group followed by the control group (x-tra fil composite) had the greatest microleakage. Except for the Ionoseal group, all other groups had significantly less microleakage than the control group.Conclusion: The use of bonded-base techniques could reduce microleakage, including those in bulk-fill composite restorations.
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container_issue	1
title_short	Evaluation of microleakage in Class II composite restorations: Bonded-base and bulk-fill techniques
url	https://doi.org/10.4103/1735-3327.328757 https://doaj.org/article/6b29c72c60cd4519a5e732af22bcc209 http://www.drjjournal.net/article.asp?issn=1735-3327;year=2021;volume=18;issue=1;spage=89;epage=89;aulast=Feiz https://doaj.org/toc/1735-3327 https://doaj.org/toc/2008-0255
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author2	Marzieh Sajedi Niloufar Jafari Edward J. Swift
author2Str	Marzieh Sajedi Niloufar Jafari Edward J. Swift
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