title: Comparative assessment of antibacterial activity of different glass ionomer cements on cariogenic bacteria.
abstract: OBJECTIVE
  Glass ionomer cements (GICs), which are biocompatible and adhesive to the tooth surface, are widely used nowadays for tooth restoration. They inhibit the demineralization and promote the remineralization of the tooth structure adjacent to the restoration, as well as interfere with bacterial growth. Hence, the present study was conducted to assess and compare the antimicrobial activity of three commercially available GICs against two cariogenic bacteria.
  
  
  METHODS
  An agar plate diffusion test was used for evaluating the antimicrobial effect of three different GICs (Fuji IX, Ketac Molar, and d-tech) onStreptococcus mutans(S. mutans) andLactobacillus acidophilus(L. acidophilus). Thirty plates were prepared and divided into two groups. The first group was inoculated withS. mutans, and the second group was inoculated withL. acidophilus. These plates were then incubated at 37℃ for 24 hours. Zones of bacterial growth inhibition that formed around each well were recorded in millimeters (mm).
  
  
  RESULTS
  The zones of inhibition for Fuji IX, Ketac Molar, and d-tech onS. mutanswere found to be 10.84 ± 0.22 mm, 10.23 ± 0.15 mm, and 15.65 ± 0.31 mm, respectively, whereas those forL. acidophiluswere found to be 10.43 ± 0.12 mm, 10.16 ± 0.11 mm, and 15.57 ± 0.13 mm, respectively.
  
  
  CONCLUSIONS
  D-tech cement performed better in terms of the zone of bacterial inhibition against the two test bacteria, than the other two tested glass ionomers.
authors.affiliation: JMF's ACPM Dental College, Dhule, Maharashtra, India.
authors.forename: Rahul Gaybarao
authors.initials: RG
authors.lastname: Naik
authors.affiliation: JMF's ACPM Dental College, Dhule, Maharashtra, India.
authors.forename: Arun Suresh
authors.initials: AS
authors.lastname: Dodamani
authors.affiliation: Bharati Vidyapeeth Deemed University Dental College and Hospital, Sangli, Maharashtra, India.
authors.forename: Mahesh Ravindra
authors.identifier: 0000-0003-4274-9565
authors.initials: MR
authors.lastname: Khairnar
authors.affiliation: JMF's ACPM Dental College, Dhule, Maharashtra, India.
authors.forename: Harish Chaitram
authors.initials: HC
authors.lastname: Jadhav
authors.affiliation: Swargiya Dadasaheb Kalmegh Smruti Dental College and Hospital, Nagpur, Maharashtra, India.
authors.forename: Manjiri Abhay
authors.initials: MA
authors.lastname: Deshmukh
keywords: Antibacterial effect; Glass ionomer cements; Growth inhibition; Lactobacilli; Streptococci