Mineral trioxide aggregate repair of lateral root perforations

• Published in: Journal of endodontics Vol. 27; no. 4; p. 281
• Main Authors: Holland, R, Filho, J A, de Souza, V, Nery, M J, Bernabé, P F, Junior, E D
• Format: Journal Article
• Language: English
• Published: United States 01-04-2001
• Subjects: Aluminum Compounds - therapeutic use; Animals; Calcium Compounds - therapeutic use; Calcium Hydroxide - therapeutic use; Connective Tissue - pathology; Dental Cementum - pathology; Dental Pulp Cavity - injuries; Dental Pulp Cavity - pathology; Dogs; Drug Combinations; Follow-Up Studies; Giant Cells - pathology; Inflammation; Macrophages - pathology; Oxides - therapeutic use; Periodontal Ligament - pathology; Root Canal Filling Materials - therapeutic use; Root Canal Preparation - instrumentation; Salicylates - therapeutic use; Silicates - therapeutic use; Tooth Root - injuries; Wound Healing
• ISSN: 0099-2399
• DOI: 10.1097/00004770-200104000-00011

This study was conducted to observe the healing process of intentional lateral root perforation repaired with mineral trioxide aggregate (MTA). Forty-eight root canals of dogs' teeth were instrumented and filled. After partial removal of the filling, an intentional perforation was made with a bur in the lateral area of the root. The perforations were repaired with MTA or Sealapex (control group). Histological analysis occurred 30 and 180 days after treatment. Results showed no inflammation and deposition of cementum over MTA in the majority of the specimens. In the 180-day period, Sealapex exhibited chronic inflammation in all the specimens and slight deposition of cementum over the material in only three cases. In conclusion, MTA exhibited better results than the control group.