碘灭糊剂一次根管充填治疗慢性根尖炎晋中地区第一人民医院（０３０６００）王凤英慢性根尖龈瘘在临床上较为多见，常规为多次根管换药，待症状消失、龈瘘闭合后行根管充填。１９８７年以来，我们采用碘仿、灭滴灵糊剂一次根管充填，疗效显著，现报告如下：临床资料男３２例，女１６例，年龄１４～７２岁。４８例中上切牙２１例，侧切牙６例，单尖牙５例，中下切牙１２例，下侧切牙４例。方法：开髓，拔髓；根管预备，要用小号至大号的扩大针，按顺序逐号扩大，去除管壁上分解坏死组织。再用３％过氧化氢液加压冲洗根管，直到液体从龈痰冲出为止。然后根管干燥，取绿豆大小的碘仿糊剂加半片灭滴灵粉用适量的丁香油调拌均匀呈糊状送入根管，用细的带棉花光滑针沿着管壁螺旋形的往下填，反复３～５次，填到根尖，填满根管，上面用磷酸锌粘固粉充填，最后用银汞合金充填。结果：本组４８例，成功４５例，占９３％，失败３例，占６％。讨论根管治疗的目的在于消除发炎或坏死的牙髓组织，我们认为机械扩大及冲洗根管后，根管内微生物大为减少，再用３％过氧化氢加压冲洗使液体从龈瘘通过，则可使根管洁净，为了消除感染灶，堵塞感染途径，用碘仿、灭滴灵糊剂充填根管。因感染根管的病原菌是以厌氧菌为主体的 A root canal filling iodine elimination paste treatment of chronic root tip disease First People's Hospital of Jinzhong (030600) Wang Fengying Chronic apical gingival fistula is more common in clinical practice, multiple root canal dressing, until the symptoms disappear, gingival Fistula closed after root canal filling. Since 1987, we use iodoform, metronidazole paste a root canal filling, the effect is significant, are as follows: Clinical data of 32 males and 16 females, aged 14 to 72 years. There were 21 cases of upper incisors in 48 cases, 6 cases of lateral incisors, 5 cases of monocleps, 12 cases of middle and lower incisors and 4 cases of lower incisors. Method: open the pulp, pull the pulp; root canal preparation, to use the trumpet to enlarge the needle, according to the order by the number of expansion, removal of necrotic tissue wall. Then 3% hydrogen peroxide solution pressure irrigation root canal, until the liquid out from the gingival phlegm so far. Then root canal dry, take mung bean-sized iodoform paste plus half of metronidazole powder with an appropriate amount of clove oil mix even paste into the root canal, with a fine cotton smooth needle spiral along the wall to the Under the fill, repeated 3 to 5 times, fill the root tip, fill the root canal, above with zinc phosphate cement powder filling, and finally filled with silver amalgam. Results: The group of 48 cases, 45 cases were successful, accounting for 93%, failed in 3 cases, accounting for 6%. Discussion The purpose of root canal therapy is to eliminate inflamed or necrotic pulp tissue. We think that after root canal expansion and irrigation, there is a significant decrease in endotracheal microbes, followed by a pressure flush with 3% hydrogen peroxide to pass the fluid through the gingival fistula , You can make the root canal clean, in order to eliminate the infection foci, blocking the path of infection, with iodoform, metronidazole paste filling the root canal. Due to infection of the root canal pathogens are mainly anaerobic bacteria