Radiopacity and histological assessment of Portland cement plus bismuth oxide

被引：17

作者：

Coutinho-Filho, Tauby ^{[1
]}

De-Deus, Gustavo

Klein, Leila ^{[1
]}

Manera, Gisele ^{[1
]}

Peixoto, Carla ^{[2
]}

Gurgel-Filho, Eduardo Diogo

机构：

[1] Univ Estado Rio De Janeiro, Dept Endodont, Rio De Janeiro, Brazil

[2] Dept Pathol Fed Fluminense, Rio De Janeiro, Brazil

来源：

ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTOLOGY | 2008年 / 106卷 / 06期

关键词：

D O I：

10.1016/j.tripleo.2008.07.028

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

Objective. The present study evaluated the subcutaneous connective tissue reactions and the radiopacity of MTA, Portland cement (PC), and Portland cement plus bismuth oxide (BO). Study design. Forty 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). Results. The 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. Conclusion. The histological evaluation suggests that all studied materials were biocompatible at 7 and 60 days. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2008; 106:e69-e77)

引用

页码：E69 / E77

页数：9

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