The Effect of Varying Water to Powder Ratios on the Microhardness and Microstructure of Mineral Trioxide Aggregate

https://doi.org/10.22146/jmpc.68279

Rethy Den(1*), Rini Dharmastiti(2), Nuryono Nuryono(3), Leny Yuliatun(4), Widjijono Widjijono(5)

(1) Department of Mechanical and Industrial Engineering, Universitas Gadjah Mada, Yogyakarta, Indonesia
(2) Department of Mechanical and Industrial Engineering, Universitas Gadjah Mada, Yogyakarta, Indonesia
(3) Department of Chemistry, Universitas Gadjah Mada, Yogyakarta, Indonesia
(4) Department of Chemistry, Universitas Gadjah Mada, Yogyakarta, Indonesia
(5) Department of Dental Biomaterial Science, Universitas Gadjah Mada, Yogyakarta, Indonesia
(*) Corresponding Author

Abstract


The composition of water and powder in a mixture is one of the common problems in application as clinicians typically estimate the ratio chairside. The purpose of this study was to investigate the effect of varying water-to-powder ratios on the microhardness and microstructure of mineral trioxide aggregate (MTA). ROOTDENT MTA was investigated. One gram of cement was mixed with 0.28, 0.33, and 0.40 grams of distilled water and was stored for 1, 7, and 28 days in the water. Samples were subjected to x-ray diffraction (XRD), scanning electron microscopy (SEM), and microhardness tests. Tricalcium silicate, dicalcium silicate, zirconium dioxide, calcium carbonate, and calcium hydroxide were detected by XRD. SEM showed the presence of amorphous, porous capillary channel and capillary structure on the surface of the specimens. The SEM image for each water-to-powder ratio of the surface of the material was indistinguishable from the other. The highest microhardness was exhibited by the MTA specimen with the 0.33 water-to-powder ratio submerged in the water for 28 days.

Keywords


Microhardness, Microstructure, Mineral trioxide aggregate, Water-to-powder ratio.

Full Text:

PDF


References

A. Cutajar, B. Mallia, S. Abela and J. Camilleri, “Replacement of radiopacifier in mineral trioxide aggregate; Characterization and determination of physical properties,” Dental Materials, vol. 27, no. 9, pp. 879-891, 9 2011.

D. P. Bentz, “Cement hydration: Building bridges and dams at the microstructure level,” Materials and Structures/Materiaux et Constructions, vol. 40, no. 4, pp. 397-404, 5 2007.

F. B. Basturk, M. H. Nekoofar, M. Gunday and P. M. Dummer, “Effect of varying water-to-powder ratios and ultrasonic placement on the compressive strength of mineral trioxide aggregate,” Journal of Endodontics, vol. 41, no. 4, pp. 531-534, 2015.

F. B. Basturk, M. H. Nekoofar, M. Günday and P. M. Dummer, “The effect of various mixing and placement techniques on the compressive strength of mineral trioxide aggregate,” Journal of Endodontics, vol. 39, no. 1, pp. 111-114, 1 2013.

F. B. Basturk, M. H. Nekoofar, M. Gunday and P. M. Dummer, “X-ray diffraction analysis of MTA mixed and placed with various techniques,” Clinical Oral Investigations, vol. 22, no. 4, pp. 1675-1680, 1 5 2018.

I. Islam, H. Kheng Chng and A. U. Jin Yap, “Comparison of the physical and mechanical properties of MTA and portland cement,” Journal of Endodontics, vol. 32, no. 3, pp. 193-197, 3 2006.

J. Camilleri, “Hydration mechanisms of mineral trioxide aggregate,” International Endodontic Journal, vol. 40, no. 6, pp. 462-470, 6 2007.

J. Camilleri, F. E. Montesin, K. Brady, R. Sweeney, R. V. Curtis and T. R. Ford, “The constitution of mineral trioxide aggregate,” Dental Materials, vol. 21, no. 4, pp. 297-303, 4 2005.

L. M. Formosa, B. Mallia and J. Camilleri, “Mineral trioxide aggregate with anti-washout gel-Properties and microstructure,” Dental Materials, vol. 29, no. 3, pp. 294-306, 3 2013.

M. A. Saghiri, M. Lotfi, A. M. Saghiri, S. Vosoughhosseini, M. Aeinehchi dan B. Ranjkesh, “Scanning Electron Micrograph and Surface Hardness of Mineral Trioxide Aggregate in the Presence of Alkaline pH,” Journal of Endodontics, vol. 35, no. 5, pp. 706-710, 5 2009.

M. A. Saghiri, M. Lotfi, A. M. Saghiri, S. Vosoughhosseini, M. Aeinehchi and B. Ranjkesh, “Scanning Electron Micrograph and Surface Hardness of Mineral Trioxide Aggregate in the Presence of Alkaline pH,” Journal of Endodontics, vol. 35, no. 5, pp. 706-710, 5 2009.

M. Fridland and R. Rosado, “Mineral trioxide aggregate (MTA) solubility and porosity with different water-to-powder ratios,” Journal of Endodontics, vol. 29, no. 12, pp. 814-817, 2003.

M. Fridland and R. Rosado, “MTA solubility: A long term study,” Journal of Endodontics, vol. 31, no. 5, pp. 376-379, 2005.

M. Hawley, T. D. Webb and G. G. Goodell, “Effect of varying water-to-powder ratios on the setting expansion of white and gray mineral trioxide aggregate,” Journal of Endodontics, vol. 36, no. 8, pp. 1377-1379, 2010.

M. S. Namazikhah, M. H. Nekoofar, M. S. Sheykhrezae, S. Salariyeh, S. J. Hayes, S. T. Bryant, M. M. Mohammadi dan P. M. Dummer, “The effect of pH on surface hardness and microstructure of mineral trioxide aggregate,” International Endodontic Journal, vol. 41, no. 2, pp. 108-116, 2 2008.

M. Torabinejad and N. Chivian, “Clinical Applications of Mineral Trioxide Aggregate,” 1999.

M. Torabinejad, C. U. Hong, F. Mcdonald and T. R. Pitt Ford, “Physical and Chemical Properties of a New Root-End Filling Material,” 1995.

M. Torabinejad, T. F. Watson and T. R. Pitt Ford, “Sealing Ability of a Mineral Trioxide Aggregate When Used As a Root End Filling Material,” 1993.

S. Asgary, S. Shahabi, T. Jafarzadeh, S. Amini and S. Kheirieh, “The Properties of a New Endodontic Material,” Journal of Endodontics, vol. 34, no. 8, pp. 990-993, 8 2008.

S. Chen, L. Shi, J. Luo and H. Engqvist, “Novel Fast-Setting Mineral Trioxide Aggregate: Its Formulation, Chemical-Physical Properties, and Cytocompatibility,” ACS Applied Materials and Interfaces, vol. 10, no. 24, pp. 20334-20341, 20 6 2018.



DOI: https://doi.org/10.22146/jmpc.68279

Article Metrics

Abstract views : 2183 | views : 1310

Refbacks

  • There are currently no refbacks.