[In vitro sensitivity of Actinobacillus actinomycetemcomitans to various antibiotics].

In this study, 7 strains of Actinobacillus actinomycetemcomitans (A.a.) were isolated from Localized juvenile periodontitis (LJP) patients and antibiotic susceptibility test by disc diffusion method was utilized. The purpose of this study is to find out the most useful antibiotic against A.a. which is the most important microbial agent in LJP. All seven strains of A.a. were found susceptible to tetracycline, doxycycline, erythromycin, ciprofloxacin and cefuroxime. Two strains were found intermediate susceptible to cephradine. One strain was found resistant to penicillin and another one was found resistant to ampicillin.