Effect of Oral Environmental pH on the Dynamic Characterization of Bioactive Restorative Materials; [Kesan pH Persekitaran Oral terhadap Pencirian Dinamik Bahan Pemulihan Bioaktif]
The objective of this study was to investigate the effects of oral environmental pH on the viscoelastic properties of bioactive restorative materials (BRMs) by using dynamic mechanical analysis. Stainless steel molds were used to fabricate 40 beam-shaped specimens (12 × 2 × 2 mm) for each material....
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Penerbit Universiti Kebangsaan Malaysia
2022
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2-s2.0-85141940167 Xin J.O.E.E.; U-Jin A.Y.; Aziz A.A.; Yahya N.A. Effect of Oral Environmental pH on the Dynamic Characterization of Bioactive Restorative Materials; [Kesan pH Persekitaran Oral terhadap Pencirian Dinamik Bahan Pemulihan Bioaktif] 2022 Sains Malaysiana 51 9 10.17576/jsm-2022-5109-20 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85141940167&doi=10.17576%2fjsm-2022-5109-20&partnerID=40&md5=223d4d703b5c32068dd86887a3f00771 The objective of this study was to investigate the effects of oral environmental pH on the viscoelastic properties of bioactive restorative materials (BRMs) by using dynamic mechanical analysis. Stainless steel molds were used to fabricate 40 beam-shaped specimens (12 × 2 × 2 mm) for each material. The specimens were finished, measured, randomly divided into four groups (n = 10), and immersed in aqueous solutions of pH 3.0, 5.0, 6.8 and 10.0 at 37 °C for seven days. The specimens were then subjected to dynamic mechanical analysis with a 5 N load and frequency range of 0.1-10.0 Hz. Data were analyzed using one-way ANOVA/Dunnet T3’s test (α = 0.05). Mean elastic modulus spanned from 2.68 ± 0.17 to 6.49 ± 0.71 GPa, while viscous modulus ranged from 0.43 ± 0.03 to 0.62 ± 0.12 GPa. Loss tangent differed from 77.30 ± 4.90 to 164.50 ± 9.12. Significant differences among pH were discerned for (i) Elastic modulus: Cention N - pH 3.0, 5.0, 10.0 > 6.8; Activa Bioactive - pH 3.0, 6.8, 10.0 > 5.0, (ii) Viscous modulus: Cention N - pH 3.0, 5.0, 10.0 > 6.8, and (iii) Loss tangent: Activa Bioactive - pH 5.0 > 3.0, 6.8, 10.0. Significant differences in viscoelastic properties were noted among the BRMs with Activa Bioactive presenting the lowest elastic modulus for all pH. Immersion of all materials in pH 6.8 yielded the highest elastic modulus, except for Activa Bioactive. The effects of environmental pH on viscoelastic properties of BRMs are material-dependent. © 2022 Penerbit Universiti Kebangsaan Malaysia. All rights reserved. Penerbit Universiti Kebangsaan Malaysia 1266039 English Article All Open Access; Gold Open Access |
author |
Xin J.O.E.E.; U-Jin A.Y.; Aziz A.A.; Yahya N.A. |
spellingShingle |
Xin J.O.E.E.; U-Jin A.Y.; Aziz A.A.; Yahya N.A. Effect of Oral Environmental pH on the Dynamic Characterization of Bioactive Restorative Materials; [Kesan pH Persekitaran Oral terhadap Pencirian Dinamik Bahan Pemulihan Bioaktif] |
author_facet |
Xin J.O.E.E.; U-Jin A.Y.; Aziz A.A.; Yahya N.A. |
author_sort |
Xin J.O.E.E.; U-Jin A.Y.; Aziz A.A.; Yahya N.A. |
title |
Effect of Oral Environmental pH on the Dynamic Characterization of Bioactive Restorative Materials; [Kesan pH Persekitaran Oral terhadap Pencirian Dinamik Bahan Pemulihan Bioaktif] |
title_short |
Effect of Oral Environmental pH on the Dynamic Characterization of Bioactive Restorative Materials; [Kesan pH Persekitaran Oral terhadap Pencirian Dinamik Bahan Pemulihan Bioaktif] |
title_full |
Effect of Oral Environmental pH on the Dynamic Characterization of Bioactive Restorative Materials; [Kesan pH Persekitaran Oral terhadap Pencirian Dinamik Bahan Pemulihan Bioaktif] |
title_fullStr |
Effect of Oral Environmental pH on the Dynamic Characterization of Bioactive Restorative Materials; [Kesan pH Persekitaran Oral terhadap Pencirian Dinamik Bahan Pemulihan Bioaktif] |
title_full_unstemmed |
Effect of Oral Environmental pH on the Dynamic Characterization of Bioactive Restorative Materials; [Kesan pH Persekitaran Oral terhadap Pencirian Dinamik Bahan Pemulihan Bioaktif] |
title_sort |
Effect of Oral Environmental pH on the Dynamic Characterization of Bioactive Restorative Materials; [Kesan pH Persekitaran Oral terhadap Pencirian Dinamik Bahan Pemulihan Bioaktif] |
publishDate |
2022 |
container_title |
Sains Malaysiana |
container_volume |
51 |
container_issue |
9 |
doi_str_mv |
10.17576/jsm-2022-5109-20 |
url |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85141940167&doi=10.17576%2fjsm-2022-5109-20&partnerID=40&md5=223d4d703b5c32068dd86887a3f00771 |
description |
The objective of this study was to investigate the effects of oral environmental pH on the viscoelastic properties of bioactive restorative materials (BRMs) by using dynamic mechanical analysis. Stainless steel molds were used to fabricate 40 beam-shaped specimens (12 × 2 × 2 mm) for each material. The specimens were finished, measured, randomly divided into four groups (n = 10), and immersed in aqueous solutions of pH 3.0, 5.0, 6.8 and 10.0 at 37 °C for seven days. The specimens were then subjected to dynamic mechanical analysis with a 5 N load and frequency range of 0.1-10.0 Hz. Data were analyzed using one-way ANOVA/Dunnet T3’s test (α = 0.05). Mean elastic modulus spanned from 2.68 ± 0.17 to 6.49 ± 0.71 GPa, while viscous modulus ranged from 0.43 ± 0.03 to 0.62 ± 0.12 GPa. Loss tangent differed from 77.30 ± 4.90 to 164.50 ± 9.12. Significant differences among pH were discerned for (i) Elastic modulus: Cention N - pH 3.0, 5.0, 10.0 > 6.8; Activa Bioactive - pH 3.0, 6.8, 10.0 > 5.0, (ii) Viscous modulus: Cention N - pH 3.0, 5.0, 10.0 > 6.8, and (iii) Loss tangent: Activa Bioactive - pH 5.0 > 3.0, 6.8, 10.0. Significant differences in viscoelastic properties were noted among the BRMs with Activa Bioactive presenting the lowest elastic modulus for all pH. Immersion of all materials in pH 6.8 yielded the highest elastic modulus, except for Activa Bioactive. The effects of environmental pH on viscoelastic properties of BRMs are material-dependent. © 2022 Penerbit Universiti Kebangsaan Malaysia. All rights reserved. |
publisher |
Penerbit Universiti Kebangsaan Malaysia |
issn |
1266039 |
language |
English |
format |
Article |
accesstype |
All Open Access; Gold Open Access |
record_format |
scopus |
collection |
Scopus |
_version_ |
1809678479914958848 |