我科于1998年4月开始应用25％碘肽作为根管消毒剂，经临床观察，获取了较好的疗效。观介绍如下：碘优制备：以含碘浓度为3000ppm的碘伏作为100％碘优原液，用去离子水将其稀释至25％备用。病例选择：临床诊断（全部经X线检查）为急性根尖周炎128颗，慢性72颗，共计200颗，其中 My department in April 1998 began to use 25% iodine peptide as a root canal disinfectant, the clinical observation, access to a better effect. The concept is as follows: Preparation of iodine: iodine with iodine concentration of 3000ppm as 100% iodine solution, diluted with deionized water to 25% reserve. Case Selection: Clinical diagnosis (all by X-ray examination) of 128 acute apical periodontitis, chronic 72, a total of 200, of which