Fluoride release, recharge and flexural properties of polymethylmethacrylate containing fluoridated glass fillers

I A Al-Bakri, M V Swain, S J Naoum, W M Al-Omari, E Martin, A Ellakwa

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

BACKGROUND: The purpose of this study was to investigate the effect of fluoridated glass fillers on fluoride release, recharge and the flexural properties of modified polymethylmethacrylate (PMMA).

METHODS: Specimens of PMMA denture base material with various loading of fluoridated glass fillers (0%, 1%, 2.5%, 5% and 10% by weight) were prepared. Flexural properties were evaluated on rectangular specimens (n = 10) aged in deionized water after 24 hours, 1 and 3 months. Disc specimens (n = 10) were aged for 43 days in deionized water and lactic acid (pH 4.0) and fluoride release was measured at numerous intervals. After ageing, specimens were recharged and fluoride re-release was recorded at 1, 3 and 7 days after recharge.

RESULTS: Samples containing 2.5%, 5% and 10% glass fillers showed significantly (p < 0.05) greater levels of fluoride release compared with the control and 1% glass fillers specimens. All experimental specimens exhibited fluoride release in both media. The flexural strength of specimens decreased in proportion to the percentage filler inclusion with the modulus of elasticity values remaining within ISO Standard 1567.

CONCLUSIONS: The modified PMMA with fluoridated glass fillers has the ability to release and re-release fluoride ion. Flexural strength decreased as glass filler uploading increased.

Original languageEnglish
Pages (from-to)208-14
Number of pages7
JournalAustralian Dental Journal
Volume59
Issue number2
DOIs
Publication statusPublished - Jun 2014
Externally publishedYes

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Polymethyl Methacrylate
Fluorides
Glass
Denture Bases
Water
Elastic Modulus
Lactic Acid
Ions
Weights and Measures

Cite this

Al-Bakri, I A ; Swain, M V ; Naoum, S J ; Al-Omari, W M ; Martin, E ; Ellakwa, A. / Fluoride release, recharge and flexural properties of polymethylmethacrylate containing fluoridated glass fillers. In: Australian Dental Journal. 2014 ; Vol. 59, No. 2. pp. 208-14.
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abstract = "BACKGROUND: The purpose of this study was to investigate the effect of fluoridated glass fillers on fluoride release, recharge and the flexural properties of modified polymethylmethacrylate (PMMA).METHODS: Specimens of PMMA denture base material with various loading of fluoridated glass fillers (0{\%}, 1{\%}, 2.5{\%}, 5{\%} and 10{\%} by weight) were prepared. Flexural properties were evaluated on rectangular specimens (n = 10) aged in deionized water after 24 hours, 1 and 3 months. Disc specimens (n = 10) were aged for 43 days in deionized water and lactic acid (pH 4.0) and fluoride release was measured at numerous intervals. After ageing, specimens were recharged and fluoride re-release was recorded at 1, 3 and 7 days after recharge.RESULTS: Samples containing 2.5{\%}, 5{\%} and 10{\%} glass fillers showed significantly (p < 0.05) greater levels of fluoride release compared with the control and 1{\%} glass fillers specimens. All experimental specimens exhibited fluoride release in both media. The flexural strength of specimens decreased in proportion to the percentage filler inclusion with the modulus of elasticity values remaining within ISO Standard 1567.CONCLUSIONS: The modified PMMA with fluoridated glass fillers has the ability to release and re-release fluoride ion. Flexural strength decreased as glass filler uploading increased.",
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Fluoride release, recharge and flexural properties of polymethylmethacrylate containing fluoridated glass fillers. / Al-Bakri, I A; Swain, M V; Naoum, S J; Al-Omari, W M; Martin, E; Ellakwa, A.

In: Australian Dental Journal, Vol. 59, No. 2, 06.2014, p. 208-14.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Fluoride release, recharge and flexural properties of polymethylmethacrylate containing fluoridated glass fillers

AU - Al-Bakri, I A

AU - Swain, M V

AU - Naoum, S J

AU - Al-Omari, W M

AU - Martin, E

AU - Ellakwa, A

N1 - © 2014 Australian Dental Association.

PY - 2014/6

Y1 - 2014/6

N2 - BACKGROUND: The purpose of this study was to investigate the effect of fluoridated glass fillers on fluoride release, recharge and the flexural properties of modified polymethylmethacrylate (PMMA).METHODS: Specimens of PMMA denture base material with various loading of fluoridated glass fillers (0%, 1%, 2.5%, 5% and 10% by weight) were prepared. Flexural properties were evaluated on rectangular specimens (n = 10) aged in deionized water after 24 hours, 1 and 3 months. Disc specimens (n = 10) were aged for 43 days in deionized water and lactic acid (pH 4.0) and fluoride release was measured at numerous intervals. After ageing, specimens were recharged and fluoride re-release was recorded at 1, 3 and 7 days after recharge.RESULTS: Samples containing 2.5%, 5% and 10% glass fillers showed significantly (p < 0.05) greater levels of fluoride release compared with the control and 1% glass fillers specimens. All experimental specimens exhibited fluoride release in both media. The flexural strength of specimens decreased in proportion to the percentage filler inclusion with the modulus of elasticity values remaining within ISO Standard 1567.CONCLUSIONS: The modified PMMA with fluoridated glass fillers has the ability to release and re-release fluoride ion. Flexural strength decreased as glass filler uploading increased.

AB - BACKGROUND: The purpose of this study was to investigate the effect of fluoridated glass fillers on fluoride release, recharge and the flexural properties of modified polymethylmethacrylate (PMMA).METHODS: Specimens of PMMA denture base material with various loading of fluoridated glass fillers (0%, 1%, 2.5%, 5% and 10% by weight) were prepared. Flexural properties were evaluated on rectangular specimens (n = 10) aged in deionized water after 24 hours, 1 and 3 months. Disc specimens (n = 10) were aged for 43 days in deionized water and lactic acid (pH 4.0) and fluoride release was measured at numerous intervals. After ageing, specimens were recharged and fluoride re-release was recorded at 1, 3 and 7 days after recharge.RESULTS: Samples containing 2.5%, 5% and 10% glass fillers showed significantly (p < 0.05) greater levels of fluoride release compared with the control and 1% glass fillers specimens. All experimental specimens exhibited fluoride release in both media. The flexural strength of specimens decreased in proportion to the percentage filler inclusion with the modulus of elasticity values remaining within ISO Standard 1567.CONCLUSIONS: The modified PMMA with fluoridated glass fillers has the ability to release and re-release fluoride ion. Flexural strength decreased as glass filler uploading increased.

KW - Dental Abutments/adverse effects

KW - Dental Caries/prevention & control

KW - Denture Bases

KW - Elasticity

KW - Fluorides/administration & dosage

KW - Glass/chemistry

KW - Glass Ionomer Cements/chemistry

KW - Materials Testing

KW - Polymethyl Methacrylate/chemistry

KW - Sodium Fluoride/administration & dosage

KW - Time Factors

U2 - 10.1111/adj.12168

DO - 10.1111/adj.12168

M3 - Article

VL - 59

SP - 208

EP - 214

JO - Australian Dental Journal

JF - Australian Dental Journal

SN - 0045-0421

IS - 2

ER -