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Published in: Clinical Oral Investigations 2/2021

01-02-2021 | Original Article

Physicochemical, antimicrobial, and biological properties of White-MTAFlow

Authors: Lauter E. Pelepenko, Flavia Saavedra, Thiago B. M. Antunes, Gabriela F. Bombarda, Brenda P. F. A. Gomes, Alexandre A. Zaia, Josette Camilleri, Marina A. Marciano

Published in: Clinical Oral Investigations | Issue 2/2021

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Abstract

Objectives

To evaluate a new material containing tantalum oxide as an alternative radiopacifier, and a water-based gel for hydration, in comparison with two calcium silicate–based cement: ProRoot MTA and Biodentine.

Materials and methods

ProRoot MTA (Dentsply), Biodentine (Septodont), and a new hydraulic calcium silicate cement White-MTAFlow (Ultradent) (in ‘thin’ consistency) were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDS). The interaction with dentin was also assessed using SEM and EDS. Physical and chemical properties radiopacity, setting time, linear flow, volumetric central filling, and lateral flow, pH, and volume change were investigated together with the color luminosity (L) and color change (ΔE). The agar diffusion and direct contact antimicrobial activity, and methylthiazolyldiphenyl-tetrazolium-bromide (MTT) cytotoxicity using human fibroblast cells were also evaluated. Data were statistically analyzed at a 5% significance level.

Results

All materials were composed of tricalcium and dicalcium silicate but had different radiopacifiers, and calcium hydroxide (portlandite) deposition was detected in XRD analysis. White-MTAFlow exhibited radiopacity values in accordance with ISO standard, and the longest setting time. The water-based gel provided the highest linear flow, a comparable cavity central filling, and the highest groove-lateral flow in the volumetric flow analysis. White-MTAFlow exhibited an alkalinity reduction, and Biodentine, a progressive increase of pH values after 28 days. However, similar volume loss for White-MTAFlow was assessed in comparison to Biodentine after the 28-day immersion. White-MTAFlow showed the highest L value (91.5), and ProRoot MTA the lowest (78.1) due to dentin staining caused by bismuth migration. None of the materials exhibited inhibition halos against the tested bacteria, and similar turbidity values were obtained after 48 h in direct contact with E. faecalis, indicating an upregulation to bacterial growth. White-MTAFlow showed MTT cytocompatibility similarly to the control group.

Conclusions

White-MTAFlow in ‘thin’ consistency presents comparable physicochemical, biological, and antimicrobial properties to ProRoot MTA and Biodentine, and does not cause color alteration in dentin.

Clinical relevance

White-MTAFlow is a suitable material for use as reparative endodontic cement. Further studies considering its biocompatibility are necessary.
Literature
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Metadata
Title
Physicochemical, antimicrobial, and biological properties of White-MTAFlow
Authors
Lauter E. Pelepenko
Flavia Saavedra
Thiago B. M. Antunes
Gabriela F. Bombarda
Brenda P. F. A. Gomes
Alexandre A. Zaia
Josette Camilleri
Marina A. Marciano
Publication date
01-02-2021
Publisher
Springer Berlin Heidelberg
Published in
Clinical Oral Investigations / Issue 2/2021
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI
https://doi.org/10.1007/s00784-020-03543-7

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