title: Comparative Evaluation of Antimicrobial Efficacy of Resin-Modified Glass Ionomers, Compomers and Giomers - An Invitro Study.
abstract: BACKGROUND
  Dental restorative materials, especially those applied in direct contact with the contaminated substrate, should have appropriate antibacterial activity in order to prevent residual bacteria from continuing their metabolic activity in addition to impairing new bacteria from reaching the tooth-restoration interface.
  
  
  OBJECTIVE
  To determine the antibacterial efficacy of three different restorative materials against the common cariogenic microorganism i.e., Streptococcus mutans.
  
  
  METHODS
  Three different restorative materials were evaluated in this study: Giomer (Beautifil), Compomer (F2000) & Resin modified Glass ionomer (Fuji II LC) for their anti microbial efficacy against Streptococcus mutans by standard agar diffusion method and zones of inhibition for each restorative material were calculated.
  
  
  METHODS
  Inhibition zones around each restorative material were measured and values were subjected to one-way ANOVA with least square difference (LSD) Post-hoc test.
  
  
  RESULTS
  The mean inhibitory zones for Resin modified glass ionomers, Giomers & Compomers ranged from 10.1 - 6.90mm. Fuji II LC exhibited the highest mean inhibitory zone of 10.1 ± 1.97 for S.mutans. Beautifil exhibited mean inhibitory zone of 8.20 ± 1.62, whereas F2000 showed the least mean inhibitory zone of 6.90 ± 1.29.
  
  
  CONCLUSIONS
  Based on the inhibitory zones of three restorative materials, Fuji II LC is recommended as the best restorative material among the three tested restorative materials.
authors.affiliation: Assistant Professor, Department of Pedodontics & Preventive Dentistry, Government, Dental College & Hospital , Hyderabad, India .
authors.forename: P
authors.initials: P
authors.lastname: Tarasingh
authors.affiliation: Professor and HOD, Department of Pedodontics & Preventive Dentistry, Government, Dental College & Hospital , Hyderabad, India .
authors.forename: J Sharada
authors.initials: JS
authors.lastname: Reddy
authors.affiliation: Associate Professor, Department of Pedodontics & Preventive Dentistry, Government, Dental College & Hospital , Hyderabad, India .
authors.forename: K
authors.initials: K
authors.lastname: Suhasini
authors.affiliation: Assistant Professor, Department of Pedodontics & Preventive Dentistry, Government, Dental College & Hospital , Hyderabad, India .
authors.forename: I
authors.initials: I
authors.lastname: Hemachandrika
keywords: Antibacterial activity; Hybrid restorative materials; S. mutans