A histological study of the effect of diameter enlargement of the apical portion of the root canal.
D000818:Animals; D003238:Connective Tissue / Q000033:anatomy & histology / Q000502:physiology; D003786:Dental Pulp Cavity / Q000033:anatomy & histology*; D004285:Dogs; D010486:Periapical Tissue / Q000033:anatomy & histology / Q000502:physiology; D010513:Periodontal Ligament / Q000033:anatomy & histology / Q000502:physiology*; D012390:Root Canal Therapy; D014092:Tooth Root / Q000033:anatomy & histology*; D014945:Wound Healing