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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Biocompatibility and mineralized nodule formation of Neo MTA Plus and an experimental tricalcium silicate cement containing tantalum oxide

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Tanomaru-Filho, M. [1] ; Andrade, A. S. [1] ; Rodrigues, E. M. [1] ; Viola, K. S. [1] ; Faria, G. [1] ; Camilleri, J. [2] ; Guerreiro-Tanomaru, J. M. [1]
Total Authors: 7
[1] Sao Paulo State Univ, Dept Restorat Dent, Araraquara Sch Dent, UNESP, Humaita St 1680, BR-14801903 Sao Paulo - Brazil
[2] Univ Malta, Dept Restorat Dent, Fac Dent Surg, Msida - Malta
Total Affiliations: 2
Document type: Journal article
Source: International Endodontic Journal; v. 50, n. 2, SI, p. E31-E39, DEC 2017.
Web of Science Citations: 14

AimTo evaluate the biocompatibility and mineralized nodule formation of an experimental tricalcium silicate cement with tantalum oxide (TSC/Ta2O5) as radiopacifier, Neo MTA Plus (Avalon Biomed Inc., Bradenton, FL, USA) and MTA (Angelus, Londrina, PR, Brazil) on human osteoblast-like cells (Saos-2). MethodologyBiocompatibility was evaluated by 3-(4,5-dimethyl-thiazoyl)-2,5-diphenyl-tetrazolium bromide (MTT) and neutral red (NR) assays, after exposure of Saos-2 to cement extracts at 1:1, 1:2, 1:4 and 1:8 dilutions for 24h. Bioactivity was evaluated by alkaline phosphatase (ALP) activity, and calcium deposits were detected with alizarin red staining (ARS). Statistical analysis was performed with analysis of variance and Bonferroni or Tukey post-test (=0.05). ResultsThe MTT assay revealed lower cytotoxicity for NEO and MTA (P<0.05), and higher for TSC/Ta2O5 at 1:1 and 1:2 dilutions when compared to serum-free medium - control (P>0.05). At 1:4 dilution, the TSC/Ta2O5 cytotoxicity was similar to the control (P>0.05). At 1:8 dilution, cell viability was significantly greater than the control (P<0.05). Saos-2 cell viability performed using the NR assay at all dilutions revealed no cytotoxic effect of MTA, NEO and TSC/Ta2O5. ALP activity at 1 and 3days was similar to the control (P>0.05). TSC/Ta2O5 had significantly greater ALP activity at 7days when compared with the control (P<0.05). All materials induced the production of mineralized nodules, and NEO produced significantly more mineralized nodules than MTA and TSC/Ta2O5 (P<0.05). ConclusionsNeo MTA Plus and TSC/Ta2O5 were biocompatible and induced ALP activity in Saos-2 cells. Both materials induced mineralized nodule formation by Saos-2 with Neo MTA Plus producing significantly more. (AU)

FAPESP's process: 14/13353-1 - Biocompatibility and mineralization capacity of tricalcium silicate-based cements: in vitro and in vivo study
Grantee:Aline Silva Andrade
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 15/03437-6 - Evaluation of reciprocating preparation, root canal filling, and the physicochemical and biological properties of filling and repair materials
Grantee:Mario Tanomaru Filho
Support Opportunities: Regular Research Grants