Agar Diffusion Test


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Agar Diffusion Test

The most commonly used lab test for determining antibiotic susceptibility of bacteria causing clinical disease.
References in periodicals archive ?
The biquat with the shortest spacer chain (C12) was found to stop leaching within 3 days, as confirmed by both HPLC/MS and agar diffusion test. The biquats with longer spacers continued leaching during the entire measurement period of one month.
Table 1: Cytotoxicity evaluation of FS-MTA and RS-MTA, using evaluation criteria for agar diffusion test (ISO 7405, 2008).
The measurement of the inhibition zones (done in some studies with agar diffusion test) (12) is carried out using a millimeter ruler directly on the top of a Petri dish--measuring the diameter of the inhibition zone of each material used-- probably because the inhibition zone is uniformly circular.
The agar diffusion test was performed to confirm the difference in the cytotoxicity.
The agar diffusion test used in this study is one of the most frequently used methods for assessment of the anti-microbial activity of endodontic materials.
Agar diffusion test results were as expected for Listeria spp.: susceptible to amoxicillin and gentamicin; resistant to third-generation cephalosporins, clindamycin, and aztreonam (2).
Basically this test is an agar diffusion test. However, neither EUCAST nor CLSI included optochin in their guidelines for agar diffusion testing [5, 6].