Amal Abu El- Hassan Mohamed, Mahmoud Hamdy Eid And Nada Mohamed Wassef,

ABSTRACT
Sealants Form A Physical Barrier Between The Oral Environment And Deep Fissures That Contribute To Caries Prevention. It Is Postulated That Sealants Possessing Antibacterial Properties Are Advantageous.

Aim: Study The Bacterial Inhibitory Effect Of Two Fluoride Releasing Fissure Sealants (Teethmate F-Kuraray, Fissurit F- Voco) On The Inhibition Of Streptococcus Mutans And Lactobacillus Acidophilus.

Materials and Methods: The Strains Of Streptococcus Mutans And Lactobacillus Acidophilus Were Grown In The Brain Heart Infusion Broth Then Incubated For 18 Hr At 37?C And Subcultured In Selective Agar. The Zone Of Inibition Was Measured In Mm.

Results: Teethmate F-1 Showed More Antibacterial Property Against Streptococcus Mutans Than Fissurit F And There Was No Statistically Significant Difference Between Teethmate F-1 And Fissurit F Against Lactobacillus Acidophilus.

Conclusions: Within The Limitations Of This In-vitro Study, It Can Be Concluded That Both Materials Are Capable Of Contact Inhibition Of Streptococcus Mutans And Lactobacillus Acidophilus Growth.