細菌検査を活用した歯内療法

―タンニン酸製剤の制菌効果について―

抄録

Abstract : We isolated and identified causative bacteria in many cases with infection of the root canal of teeth. The growth inhibitory effect of tannin and tannic acid was tested in pure cultures of the dominant bacteria. Infected root canals of the tooth were filled with gutta-percha after extensive cleaning. Quick improvement was observed by using the sealant containing tannic acid whose effect on the causative bacteria was confirmed even when some infectious symptoms had remained. We report in this paper a case with infection of the root canal of the right lower first molar tooth.