| Title | Prostaglandin E production and viability of cells cultured in contact with freshly mixed endodontic materials. | | Author(s) | Melegari KK, Botero TM, Holland GR | | Institution | Department of Cariology, Restorative Sciences, and Endodontics, University of Michigan, School of Dentistry, Ann Arbor, MI 48109-1078, USA. | | Source | Int Endod J 2006 May; 39(5):357-62. | | MeSH | Aluminum Compounds
Animals
Calcium Compounds
Calcium Hydroxide
Cell Count
Cell Death
Cell Line
Cell Survival
Dinoprostone
Drug Combinations
Escherichia coli
Fibroblasts
Gingiva
Lipopolysaccharides
Macrophages
Mice
Oxides
Research Support, Non-U.S. Gov't
Root Canal Filling Materials
Salicylates
Silicates
Zinc Oxide-Eugenol Cement
| | Abstract | AIM: To determine whether commonly used endodontic sealers could either induce or increase the release of prostaglandin E2 (PGE2) when in contact with cell types found in the periapical tissues.
METHODOLOGY: Freshly mixed samples of Roth 801 sealer, Sealapex and ProRoot mineral trioxide aggregate (MTA) were placed in contact with cultured macrophages and fibroblasts for 24 h. The supernatant from the cultures was assayed for PGE2 using enzyme-linked immunosorbent assay. Cell viability counts were made. As a positive control, similar cultures were also exposed to lipopolysaccharide and the supernatant analysed for PGE2. Data were compared by anova.
RESULTS: The three materials examined in these experiments did not stimulate increased PGE2 release from either of the cell lines. In control cultures, lipopolysaccharide increased PGE2 release from macrophages but not from fibroblasts. Viability counts revealed that, whilst Roth 801 sealer caused some cell death in both fibroblasts and macrophages, Sealapex led to cell death only in the macrophage cultures. ProRoot MTA did not lead to statistically significant cell death in either culture.
CONCLUSIONS: Under 24-h culture conditions, the three freshly mixed test materials did not increase directly either production or release of PGE2 from either macrophages or gingival fibroblasts. Roth 801 decreased cell viability counts for both fibroblasts and macrophages. Sealapex decreases macrophage viability. ProRoot MTA did not affect viability in either cell line. | | Language | eng | | Pub Type(s) | Journal Article
| | PubMed ID | 16640633 |
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