| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 3168443 | Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology | 2008 | 9 Pages |
ObjectiveThe present study evaluated the subcutaneous connective tissue reactions and the radiopacity of MTA, Portland cement (PC), and Portland cement plus bismuth oxide (BO).Study designForty rats were divided into 5 groups (n = 8 per group): A1: Control (empty capsule); A2: Pro-Root MTA; A3: PC; A4: PC + BO 1:1; and A5: PC + BO 2:1. Polyethylene tubes were filled with the test materials and standardized radiographic images were taken. Histological evaluation was done after 7 and 60 days. Student t test and Fisher's test were used in the statistical analysis (P < .05).ResultsThe radiopacity of the materials were in decreasing order: A2 > A4 > A5 > A3. No differences were found for the tissue response in the 2 experimental periods. A positive correlation between BO concentration and radiopacity of PC was determined.ConclusionThe histological evaluation suggests that all studied materials were biocompatible at 7 and 60 days.
