Antibiogram profile of streptococcus mutans isolated from the patients with dental caries

Keerthana R and Gheetha

Background: Dental caries is recognized as one of the most infectious diseases worldwide. Streptococcus mutanshave been commonly associated as major cariogenic bacteria. This study was conducted to study the antibiotics resistance to streptococcus mutans isolated from dental caries.
Aim and objective: The aim of the study is to find the antibiogram profile of streptococcus mutans isolated from the patients with periodontitis.
Materials and methods: Sample was collected from the patients with dental caries. Antibiogram of S.mutans were followed by kirby-Bauer disc diffusion method. The isolates were inoculated in BH1 broth for 6 hours and lawn culture of this was made in Mueller Hinton agar with a sterile cotton swab. The plates were dries and antibiotics were placed (Penicilin, ceftriaxone, chloramphenicol, tetracyclin, amphicillin, clindamycin, erythromycin, gentamycin, vancomycin, amoxicilli) were incubated at 37C overnight.
Result: Out of the isolates 100% sensitivity was seen in amoxicillin, vancomycin and clindamycin 90% with gentamycin and ampicillin and 80% with erythromycin

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