Root perforations treatment using mineral trioxide aggregate and Portland cements.
OBJECTIVE
Clinical, radiological and histological evaluation of root perforations treated with mineral trioxide aggregate (MTA) or Portland cements, and calcium sulfate barrier.


METHODS
One molar and 11 premolar teeth of a male mongrel dog received endodontic treatment and furcations were perforated with a high-speed round bur and treated with a calcium sulfate barrier. MTA, Portland cement type II (PCII) and type V (PCV), and white Portland cement (WPC) were used as obturation materials. The teeth were restored with composite resin and periapical radiographs were taken. The animal was euthanized 120 days post-surgery for treatment evaluation.


RESULTS
Right lower first premolar (MTA), right lower third premolar (PCV), left lower second premolar (MTA), and right lower second premolar (WPC): clinically normal, slightly radio-transparent area on the furcation, little inflammatory infiltrate, and new-bone formation. Left lower third premolar (PCII), right upper first premolar (WPC), right upper third premolar (PCII), and left upper first molar (PCV): clinically normal, radiopaque area on the furcation, and new-bone formation. Right upper second premolar (MTA), left upper second premolar (WPC), left upper third premolar (PCII): presence of furcation lesion, large radiolucent area, and intense inflammatory infiltrate.


CONCLUSIONS
All obturation materials used in this study induced new-bone formation.
UNIFESP, SP, Brazil.
José Dias da
JD
Silva Neto
Rafael Horácio de
RH
Brito
Taylor Brandão
TB
Schnaider
Alfredo
A
Gragnani
Mírian
M
Engelman
Lydia Masako
LM
Ferreira
D017607:Aluminum Compounds / Q000494:pharmacology*; D000818:Animals; D001672:Biocompatible Materials / Q000009:adverse effects / Q000494:pharmacology*; D017610:Calcium Compounds / Q000494:pharmacology*; D002133:Calcium Sulfate / Q000494:pharmacology*; D003738:Dental Cements / Q000494:pharmacology*; D004285:Dogs; D004338:Drug Combinations; D008297:Male; D023421:Models, Animal; D008963:Molar / Q000000981:diagnostic imaging / Q000187:drug effects / Q000293:injuries; D010012:Osteogenesis / Q000187:drug effects; D010087:Oxides / Q000494:pharmacology*; D011859:Radiography; D011897:Random Allocation; D012387:Root Canal Filling Materials / Q000494:pharmacology*; D017640:Silicates / Q000494:pharmacology*; D014092:Tooth Root / Q000000981:diagnostic imaging / Q000293:injuries*
D017607:Aluminum Compounds; D001672:Biocompatible Materials; D017610:Calcium Compounds; D003738:Dental Cements; D004338:Drug Combinations; D010087:Oxides; D012387:Root Canal Filling Materials; D017640:Silicates; C086631:mineral trioxide aggregate; D002133:Calcium Sulfate