Effect of particle size on calcium release and elevation of pH of endodontic cements

Mohammad Ali Saghiri, Armen Asatourian, Jafar Orangi, Mehrdad Lotfi, Jason W. Soukup, Franklin Garcia-Godoy, Nader Sheibani

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Background/Aim: Elevation of pH and calcium ion release are of great importance in antibacterial activity and the promotion of dental soft and hard tissue healing process. In this study, we evaluated the effect of particle size on the elevation of pH and the calcium ion release from calcium silicate-based dental cements. Material and methods: Twelve plastic tubes were divided into three groups, filled with white mineral trioxide aggregate (WMTA), WMTA plus 1% methylcellulose, and nano-modified WMTA (nano-WMTA), and placed inside flasks containing 10 ml of distilled water. The pH values were measured using a pH sensor 3, 24, 72, and 168 h after setting of the cements. The calcium ion release was measured using an atomic absorption spectrophotometer with same sample preparation method. Data were subjected to two-way analysis of variance (anova) followed by post hoc Tukey tests with significance level of P < 0.05. Results: Nano-WMTA showed significant pH elevation only after 24 h (P < 0.05) compared with WMTA, and after 3, 24, and 72 h compared with WMTA plus 1% methylcellulose (P < 0.05). Nano-WMTA showed significantly higher calcium ion release values compared to the other two groups (P < 0.05). Conclusions: Nano-modification of WMTA remarkably increased the calcium ion release at all time intervals postsetting, which can significantly influence the osteogenic properties of human dental pulp cells and as a consequence enhance mineralized matrix nodule formation to achieve desirable clinical outcomes. However, the increase in pH values mainly occurred during the short time postsetting. Addition of 1% methylcellulose imposed a delay in elevation of pH and calcium ion release by WMTA.

Original languageEnglish (US)
Pages (from-to)196-201
Number of pages6
JournalDental Traumatology
Volume31
Issue number3
DOIs
StatePublished - Jun 1 2015

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Endodontics
Particle Size
Calcium
Ions
Methylcellulose
Dental Cements
mineral trioxide aggregate
Dental Pulp
Plastics
Analysis of Variance
Tooth
Water

All Science Journal Classification (ASJC) codes

  • Oral Surgery

Cite this

Saghiri, M. A., Asatourian, A., Orangi, J., Lotfi, M., Soukup, J. W., Garcia-Godoy, F., & Sheibani, N. (2015). Effect of particle size on calcium release and elevation of pH of endodontic cements. Dental Traumatology, 31(3), 196-201. https://doi.org/10.1111/edt.12160

Effect of particle size on calcium release and elevation of pH of endodontic cements. / Saghiri, Mohammad Ali; Asatourian, Armen; Orangi, Jafar; Lotfi, Mehrdad; Soukup, Jason W.; Garcia-Godoy, Franklin; Sheibani, Nader.

In: Dental Traumatology, Vol. 31, No. 3, 01.06.2015, p. 196-201.

Research output: Contribution to journalArticle

Saghiri, MA, Asatourian, A, Orangi, J, Lotfi, M, Soukup, JW, Garcia-Godoy, F & Sheibani, N 2015, 'Effect of particle size on calcium release and elevation of pH of endodontic cements', Dental Traumatology, vol. 31, no. 3, pp. 196-201. https://doi.org/10.1111/edt.12160
Saghiri, Mohammad Ali ; Asatourian, Armen ; Orangi, Jafar ; Lotfi, Mehrdad ; Soukup, Jason W. ; Garcia-Godoy, Franklin ; Sheibani, Nader. / Effect of particle size on calcium release and elevation of pH of endodontic cements. In: Dental Traumatology. 2015 ; Vol. 31, No. 3. pp. 196-201.
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