Análise comparativa da microinfiltra o marginal em retrobtura es com MTA e cimento ion mero de vidro

The purpose of periapical surgery is to remove persistent periapical disease. This procedureconsists of exposure and excision of the affected dental apex, root-end cavity preparation, andretrograde filling with a sealing material. This in vitro study used apical microleakage testing,0.2% Rhodamine B dye penetration, and computer-assisted morphometry to evaluate 30endodontically-treated, single-rooted permanent human teeth divided in three groups. Specimens in the three groups underwent apicoectomy with bur at a 90-degree cutting angle, ultrasonic root-end cavity preparation, and retrograde filling with one of three sealing materials: group A MTAAngelus ; group B Vitremer ; group C ProRoot MTA. Vitremer had the best results inthe comparative analysis. The two MTA materials had similar results. Results for the threematerials under study were satisfactory for apical retrograde filling.