title: Evaluation of effect of addition of 2% chlorhexidine on the sealing ability of Biodentine: An in vitro study.
abstract: OBJECTIVE
  To evaluate the effect of the addition of 2% chlorhexidine on the sealing ability of Biodentine.
  
  
  METHODS
  Forty-six extracted human premolar teeth with single canal and apical foramen were selected, cleaned, and decoronated to standardize the length of 17 mm. Canals were prepared using ProTaper rotary files till size F4. The samples were divided into 2 experimental groups of 20 samples each on the basis of absence/presence of 2% chlorhexidine in liquid: Group BM = Biodentine mixed with the provided liquid, Group BC = Biodentine mixed with 2% chlorhexidine in provided liquid. Three samples, each were assigned to control groups: Group BP (positive control) = No root end filling was placed, Group BN (negative control) = Root ends were filled as in Group BM, and entire external surface was coated with sticky wax. The samples were then evaluated for the apical sealing using fluid filtration method.
  
  
  RESULTS
  Results were analyzed using Student's t-test (P ≤ 0.05). Group BC showed the better sealing ability (3.06) as compared to Group BM (3.85). However, the difference was statistically insignificant (P > 0.05).
  
  
  CONCLUSIONS
  Addition of 2% chlorhexidine to the liquid enhanced the sealing ability of Biodentine.
authors.affiliation: Department of Conservative Dentistry and Endodontics, Subharti Dental College, Meerut, Uttar Pradesh, India.
authors.forename: Navleen Kaur
authors.initials: NK
authors.lastname: Suri
authors.affiliation: Department of Conservative Dentistry and Endodontics, Subharti Dental College, Meerut, Uttar Pradesh, India.
authors.forename: Vineeta
authors.initials: V
authors.lastname: Nikhil
authors.affiliation: Department of Conservative Dentistry and Endodontics, Subharti Dental College, Meerut, Uttar Pradesh, India.
authors.forename: Padmanabh
authors.initials: P
authors.lastname: Jha
authors.affiliation: Department of Conservative Dentistry and Endodontics, Subharti Dental College, Meerut, Uttar Pradesh, India.
authors.forename: Shikha
authors.initials: S
authors.lastname: Jaiswal
keywords: Biodentine; chlorhexidine; fluid filtration; micro leakage; retrograde filling material; sealing ability