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KMID : 0354619950070010203
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Journal Dankook Dental Research Institute
1995 Volume.7 No. 1 p.203 ~ p.213
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A comparative study on the microleakage patterns and antimicrobial activity on Streptococcus mutans in three dentinal bonding agent
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Abstract
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The purpose of the present study was to evaluate the microleakage patterns and to compare antimicorbial activity on Streptococcus mutans in three dentinal bonding agent. Scotchbond multi-purpose, GLUMA bonding system and ALL-BOND were used as test materials and 60 extracted premolars were selected.
For evaluation of microleakage patterns, methylene blue were penetrated and then cut, microleakage patterns were graded by stereomicroscopic observation.For comparison of antimicrobial actifiity, Streptncoccus mutans (ATTC 27351) were grown in brain heart infusion( BHI ) broth, after inoculated, the disk diffusion test were carried out.
After all plate were incubated for 48 hrs at 37 C, inhibitory zones were measured with a sliding calipers. Antimicrobial test were reptated three times.
The results can be summarized as follows
1. The microleakage in each experimental groups showed various pattems and there were no statistical significance in three dentinal bonding agent.
2. The mean values of the inhibition zones in Scotchbond and GLUMA were revealed as same as in control. In ALL-BONO 2 the inhibition zones were less than control.
3. In every experimental groups, the inhbition 2ones were bigger in aerobic incubation than anaerobic incubation.
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