Histopathological observations of periapical repair in teeth with radiolucent areas submitted to two different methods of root canal treatment.
Dogs' teeth with induced chronic periapical periodontitis were treated endodontically by two different methods, and the results were compared. A total of 40 root canals from the upper and lower premolars of two dogs were prepared chemomechanically. In method 1, a high-concentration (5.25%) hypochlorite solution was used during the instrumentation of the root canal, and an antibacterial dressing was applied between sessions, followed by filling of the root canal. In method 2, a low-concentration (0.5%) sodium hypochlorite solution was used as an adjunct to mechanical debridement, and the root canal was filled during the same session. The histopathological results showed that method 1 led to better periapical repair than method 2.
Leonardo
M R
MR
Department of Endodontics, Araraquara Dental School, UNESP, Brazil.
Almeida
W A
WA
da Silva
L A
LA
Utrilla
L S
LS
D000818:Animals; D000891:Anti-Infective Agents, Local / Q000008:administration & dosage*; D002126:Calcium Hydroxide / Q000627:therapeutic use; D003739:Dental Cementum / Q000502:physiology; D004285:Dogs; D004492:Edetic Acid / Q000627:therapeutic use; D010485:Periapical Periodontitis / Q000503:physiopathology / Q000628:therapy*; D010486:Periapical Tissue / Q000503:physiopathology*; D012388:Root Canal Irrigants / Q000008:administration & dosage* / Q000627:therapeutic use; D018915:Root Canal Preparation / Q000295:instrumentation / Q000379:methods*; D012973:Sodium Hypochlorite / Q000008:administration & dosage* / Q000627:therapeutic use; D013997:Time Factors; D016896:Treatment Outcome; D014945:Wound Healing / Q000187:drug effects*
D000891:Anti-Infective Agents, Local; D012388:Root Canal Irrigants; D004492:Edetic Acid; D012973:Sodium Hypochlorite; D002126:Calcium Hydroxide