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消毒药物以控制释放投药体系(controled rele-ase delivery system)进行根管消毒的研究已经兴起。本文的目的在于估价一种控制释放剂型的四元铵化物(简称QAC)消毒根管之疗效。材料及方法QAC是由浓缩的内部药核—含90%十二烷二甲苯氯铵及塑料外膜构成,外形为2mm大的塑料药片。因该塑料外膜较其内部药物的渗透性小,
Research on disinfecting root canals with antiseptic drug delivery systems (controled releasse delivery systems) has emerged. The purpose of this article is to evaluate the efficacy of a controlled release formulation of quaternary ammonium compounds (referred to as QAC) for root canal disinfection. Materials and Methods QAC is composed of a concentrated inner core - 90% dodecylxylene chloride and plastic outer membrane, the shape of 2mm large plastic tablets. Due to the permeability of the plastic film than the internal drug is small,