文档介绍：根管治疗术  rootcanaltherapy是治疗牙髓病及根尖周病的一种方法,通过清除根管内的炎症牙髓组织和坏死物质,并进行适当消毒,充填根管,以祛除根管内容物对根尖周组织的不良刺激,防止发生根尖周病变或促进根尖周病变的愈合。治疗历史悠久, 根管治疗是牙科中最为完善的专业学科之一,近来发展迅速。eptanceofendodonticsBythelate1930s最新进展显微镜下根管治疗和根管内窥镜的应用 机用镍钛锉和热成型牙胶技术 MTA(mineraltrioxideaggregate)的应用数字X线即刻成象技术髓腔应用解剖根尖牙本质-essorycanalTypesofcanalconfigurationsinonerootType1-singlecanalfromthepulpchambertotheapexType2-twoseparatecanalsleavingthechamberbutmergingshortoftheapextoformonlyonecanalType3-twoseparatecanalsleavingthechamberandexitingtherootinseparateapicalforaminaType4–rationofthemesialportiontherootMaxillarycuspidAlwayshasonerootandType1canalconfigurationTherootisthelongestinthearchAcrosssectionoftoothinthecervicalareashowsthatthecanalhasanovalshapemandibularcentralandlateralincisorAlwayshasonerootandtype1had60%,type2showed35%andtype3wereclassifiedas5%rationofthemesialportiontherootLateralperforationinthethinincisor