The effects of Chinese gallnut on the vitality of oral plaque biofilms in vitro / 实用口腔医学杂志

Objective:To observe the effects of gallnut water extract on the vitality of plaque biofilms.Methods:The oral plaque biofilms were obtained through bonding the enamel fragments to the bucca of the mindibular first molar for 24 h.The two groups of the biofilms were treated by gallnut water extract at 6 mg/ml and saline(control) for three minutes respectively.The effect of gallnut water extract on the vitality of plaque biofilms was observed by Ethidium bromide/Fluorescein diacetate (EB/FDA) staining and confocal laser scan microscope(CLSM).Results:All specimens had early biofilm formed,The percent vitality of the plaque biofilms treated with gallnut water extract and the control was 37.10?9.63 and 60.78?7.60 respectively(P