title: Comparing marginal microleakage of three Bulk Fill composites in Class II cavities using confocal microscope: An in vitro study.
abstract: OBJECTIVE
  This study aims to evaluate and compare microleakage at the occlusal wall and cervical wall in Class II cavities restored with one SonicFill Bulk Fill composite and two conventional Bulk Fill composites.
  
  
  METHODS
  Thirty freshly extracted teeth were divided into three groups of 10 teeth each. Standardized Class II cavities were made on the mesial and distal surfaces of each tooth and restored using SonicFill Bulk Fill composite and two conventional Bulk Fill composites, Tetric Evo Ceram, and X-tra fil. After storage, thermocycling and immersion in 0.6% rhodamine dye solution specimens were sectioned and evaluated for microleakage at the occlusal and cervical walls using confocal microscope.
  
  
  METHODS
  Kruskal-Wallis test, Wilcoxon Signed-Rank test and Mann-Whitney U-test.
  
  
  RESULTS
  The results demonstrated that in the occlusal wall and cervical wall, SonicFill Bulk Fill composite, showed significantly less marginal microleakage than the other groups.
  
  
  CONCLUSIONS
  Based on the results of this study, SonicFill Bulk Fill composite showed less microleakage than the other conventional Bulk Fill composites.
authors.affiliation: Department of Conservative Dentistry and Endodontics, Vydehi Institute Dental Sciences and Research Centre, Bengaluru, Karnataka, India.
authors.forename: Manne Udaya
authors.initials: MU
authors.lastname: Swapna
authors.affiliation: Department of Conservative Dentistry and Endodontics, Vydehi Institute Dental Sciences and Research Centre, Bengaluru, Karnataka, India.
authors.forename: Sunil
authors.initials: S
authors.lastname: Koshy
authors.affiliation: Department of Conservative Dentistry and Endodontics, Rajas Dental College and Hospital, Tirunelveli, Tamil Nadu, India.
authors.forename: Arvind
authors.initials: A
authors.lastname: Kumar
authors.affiliation: Department of Conservative Dentistry and Endodontics, Vydehi Institute Dental Sciences and Research Centre, Bengaluru, Karnataka, India.
authors.forename: Naveen
authors.initials: N
authors.lastname: Nanjappa
authors.affiliation: Department of Conservative Dentistry and Endodontics, Vydehi Institute Dental Sciences and Research Centre, Bengaluru, Karnataka, India.
authors.forename: Shiny
authors.initials: S
authors.lastname: Benjamin
authors.affiliation: Department of Conservative Dentistry and Endodontics, Vydehi Institute Dental Sciences and Research Centre, Bengaluru, Karnataka, India.
authors.forename: Mohan Thomas
authors.initials: MT
authors.lastname: Nainan
keywords: Bulk Fill composites; Class II restorations; SonicFill Bulk Fill composite; confocal microscope; marginal microleakage; rhodamine dye