Effect of artificial saliva on permeability of dentin treated with phosphate containing desensitizer measured by digital flow meter

Masafumi Kanehira; Hiroshi Ishihata; Yasuyuki Araki; Hidekazu Takahashi; Keiichi Sasaki; Werner J. Finger

doi:10.4012/dmj.2018-134

Effect of artificial saliva on permeability of dentin treated with phosphate containing desensitizer measured by digital flow meter

Masafumi Kanehira, Hiroshi Ishihata, Yasuyuki Araki, Hidekazu Takahashi, Keiichi Sasaki, Werner J. Finger

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

The aim of this study was to investigate the effects of artificial saliva on permeability measured using a highly sensitive digital flow meter of dentin discs treated with a phosphate containing desensitizer compound (Teethmate desensitizer; TD). Four random groups (n=10) were treated either with TD or distilled water (DW), then stored in artificial saliva (AS) or DW for 1 day, 1 week and 1 month. Flow rates under 2 kPa pressure were calculated as percentage reduction (PR%) from the baseline. The PR% of TD/AS group was significantly lower after 1 day and 1 week, but the PR%s of 1 month groups among TD/AS, TD/DW and DW/AS were not significantly different. The SEM photograph of TD/AS group displayed that the dentin surface was densely covered with mineral deposits. Ca and phosphate ions from the artificial saliva could penetrate into the tubules and precipitate as hydroxyapatite, resulting in the reduction in permeability.

Original language	English
Pages (from-to)	963-969
Number of pages	7
Journal	Dental Materials Journal
Volume	38
Issue number	6
DOIs	https://doi.org/10.4012/dmj.2018-134
Publication status	Published - 2019

Keywords

Artificial saliva
Dentin permeability
Dentin sensitivity
Flow meter
Hydrodynamics

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10.4012/dmj.2018-134

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title = "Effect of artificial saliva on permeability of dentin treated with phosphate containing desensitizer measured by digital flow meter",

abstract = "The aim of this study was to investigate the effects of artificial saliva on permeability measured using a highly sensitive digital flow meter of dentin discs treated with a phosphate containing desensitizer compound (Teethmate desensitizer; TD). Four random groups (n=10) were treated either with TD or distilled water (DW), then stored in artificial saliva (AS) or DW for 1 day, 1 week and 1 month. Flow rates under 2 kPa pressure were calculated as percentage reduction (PR%) from the baseline. The PR% of TD/AS group was significantly lower after 1 day and 1 week, but the PR%s of 1 month groups among TD/AS, TD/DW and DW/AS were not significantly different. The SEM photograph of TD/AS group displayed that the dentin surface was densely covered with mineral deposits. Ca and phosphate ions from the artificial saliva could penetrate into the tubules and precipitate as hydroxyapatite, resulting in the reduction in permeability.",

keywords = "Artificial saliva, Dentin permeability, Dentin sensitivity, Flow meter, Hydrodynamics",

author = "Masafumi Kanehira and Hiroshi Ishihata and Yasuyuki Araki and Hidekazu Takahashi and Keiichi Sasaki and Finger, {Werner J.}",

note = "Funding Information: The authors gratefully acknowledge Kuraray Noritake (Japan) for donation of the materials. The authors acknowledge Dr. Kazuomi IKEDA for statistical calculation. This study was supported by JSPS Funding Information: The authors gratefully acknowledge Kuraray Noritake (Japan) for donation of the materials. The authors acknowledge Dr. Kazuomi IKEDA for statistical calculation. This study was supported by JSPS KAKENHI Grant no.26462870. Publisher Copyright: {\textcopyright} 2019, Japanese Society for Dental Materials and Devices. All rights reserved.",

year = "2019",

doi = "10.4012/dmj.2018-134",

language = "English",

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AU - Kanehira, Masafumi

AU - Ishihata, Hiroshi

AU - Araki, Yasuyuki

AU - Takahashi, Hidekazu

AU - Sasaki, Keiichi

AU - Finger, Werner J.

N1 - Funding Information: The authors gratefully acknowledge Kuraray Noritake (Japan) for donation of the materials. The authors acknowledge Dr. Kazuomi IKEDA for statistical calculation. This study was supported by JSPS Funding Information: The authors gratefully acknowledge Kuraray Noritake (Japan) for donation of the materials. The authors acknowledge Dr. Kazuomi IKEDA for statistical calculation. This study was supported by JSPS KAKENHI Grant no.26462870. Publisher Copyright: © 2019, Japanese Society for Dental Materials and Devices. All rights reserved.

PY - 2019

Y1 - 2019

N2 - The aim of this study was to investigate the effects of artificial saliva on permeability measured using a highly sensitive digital flow meter of dentin discs treated with a phosphate containing desensitizer compound (Teethmate desensitizer; TD). Four random groups (n=10) were treated either with TD or distilled water (DW), then stored in artificial saliva (AS) or DW for 1 day, 1 week and 1 month. Flow rates under 2 kPa pressure were calculated as percentage reduction (PR%) from the baseline. The PR% of TD/AS group was significantly lower after 1 day and 1 week, but the PR%s of 1 month groups among TD/AS, TD/DW and DW/AS were not significantly different. The SEM photograph of TD/AS group displayed that the dentin surface was densely covered with mineral deposits. Ca and phosphate ions from the artificial saliva could penetrate into the tubules and precipitate as hydroxyapatite, resulting in the reduction in permeability.

AB - The aim of this study was to investigate the effects of artificial saliva on permeability measured using a highly sensitive digital flow meter of dentin discs treated with a phosphate containing desensitizer compound (Teethmate desensitizer; TD). Four random groups (n=10) were treated either with TD or distilled water (DW), then stored in artificial saliva (AS) or DW for 1 day, 1 week and 1 month. Flow rates under 2 kPa pressure were calculated as percentage reduction (PR%) from the baseline. The PR% of TD/AS group was significantly lower after 1 day and 1 week, but the PR%s of 1 month groups among TD/AS, TD/DW and DW/AS were not significantly different. The SEM photograph of TD/AS group displayed that the dentin surface was densely covered with mineral deposits. Ca and phosphate ions from the artificial saliva could penetrate into the tubules and precipitate as hydroxyapatite, resulting in the reduction in permeability.

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KW - Hydrodynamics

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Effect of artificial saliva on permeability of dentin treated with phosphate containing desensitizer measured by digital flow meter

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