title: In vitro evaluation of shear bond strength and microleakage of different pit and fissure sealants.
abstract: OBJECTIVE
  Fissure caries is most common in children due to deep pit and fissures. Pit and fissure areas on the occlusal surface of the teeth make them susceptible to dental caries, which need to be prevented or restored. Fissures sealant reduces the risk of occlusal caries. The present study was done to evaluate microleakage and shear bond strength of various fissure sealants.
  
  
  METHODS
  Thirty-six extracted molars were randomly allocated equally (n = 12) into three groups with three different sealants to evaluate shear bond strength and microleakage at sealant space. The shear bond strengths was evaluated with one-way analysis of variance and microleakage by Kruskal-Wallis nonparametric test using the Statistical Package for the Social Sciences version 18.0 (Chicago: SPSS Inc, 2009).
  
  
  RESULTS
  Tetric flow (16.8 MPa) recorded the highest shear bond strength and the difference was statistically significant with enamel loc (12.8 MPa). There was no statistically significant difference in relation to microleakage (P > 0.05) in the tested groups.
  
  
  CONCLUSIONS
  Tetric flow recorded the highest shear bond strength and the difference was statistically significant with enamel loc. However, there was no statistically significant difference among the groups regarding microleakage.
authors.affiliation: Department of Pedodontics and Preventive Dentistry, Sharavthi Dental College, Karnataka, India.
authors.forename: Prashant
authors.initials: P
authors.lastname: Babaji
authors.affiliation: Department of Oral Pathology and Microbiology, MPCD and Research Centre, Gwalior, India.
authors.forename: Shivali
authors.initials: S
authors.lastname: Vaid
authors.affiliation: Department of Pedodontics, Triveni Dental College, Chhattisgarh, India.
authors.forename: S
authors.initials: S
authors.lastname: Deep
authors.affiliation: Department of Orthodontics, Bhabha College of Dental Sciences, Bhopal, Madhya Pradesh, India.
authors.forename: Samvit
authors.initials: S
authors.lastname: Mishra
authors.affiliation: Department of Pedodontics, BBDCODS, Lucknow, Uttar Pradesh, India.
authors.forename: Madhulika
authors.initials: M
authors.lastname: Srivastava
authors.affiliation: Department of Pedodontics, PSM Dental College, Kerala, India.
authors.forename: Thomas
authors.initials: T
authors.lastname: Manjooran
keywords: Composite; fissure; flowable; microleakage; pit; sealant; shear bond strength