title: Root canal treatment with calcium hydroxide. II. Effect of instrumentation beyond the apices.
abstract: Root canals of dog premolar teeth were instrumented beyond the apices and enlarged up to the size of a No. 40 or 80 file and filled with calcium hydroxide up to the foramen. Ninety days later the histologic data showed more favorable results with the root canals instrumented until file No. 80.
mesh_terms: D000818:Animals; D002126:Calcium Hydroxide; D003238:Connective Tissue / Q000033:anatomy & histology; D003739:Dental Cementum / Q000033:anatomy & histology; D003762:Dental Instruments; D004285:Dogs; D010486:Periapical Tissue / Q000033:anatomy & histology / Q000502:physiology*; D012387:Root Canal Filling Materials; D012390:Root Canal Therapy / Q000295:instrumentation / Q000379:methods*; D014092:Tooth Root / Q000033:anatomy & histology; D014945:Wound Healing
chemical_list: D012387:Root Canal Filling Materials; D002126:Calcium Hydroxide