Aims: To determine and compare the antimicrobial activity of chewing stick Salvadora persica (Miswak), dental powder toothpastes sold in Umuahia, Abia state Nigeria against selected oral bacteria (Streptococcus spp, Staphylococcus Porphyromona spp Lactobacillus spp). Method: The (Miswak) extracts (ethanol aqueous), two (Agnes nwamma N-sol) five brand (Close-Up, Oral-B, Colgate, MacClean Pepsode...