Remineralization of Eroded Enamel Lesions by Simulated Saliva

Karlinsey, Robert L; Mackey, Allen C; Blanken, Douglas D; Schwandt, Craig S

Remineralization of Eroded Enamel Lesions by Simulated Saliva In Vitro

Robert L Karlinsey^{a, *}, Allen C Mackey^a, Douglas D Blanken^a, Craig S Schwandt^b

^a RL Karlinsey, Indiana Nanotech, 351 West 10^th Street, Suite 309, Indianapolis, Indiana, 46202 USA

^b McCrone Associates, Inc., 850 Pasquinelli Drive, Westmont, IL 60559-5539 USA

Article Information

Identifiers and Pagination:

Year: 2012
Volume: 6
First Page: 170
Last Page: 176
Publisher ID: TODENTJ-6-170
DOI: 10.2174/1874210601206010170

Article History:

Received Date: 26/7/2012
Revision Received Date: 02/9/2012
Acceptance Date: 20/9/2012
Electronic publication date: 19/10/2012
Collection year: 2012

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© Karlinsey et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

^* Address correspondence to this author at the Indiana Nanotech, 351 West 10^th Street, Suite 309, Indianapolis, Indiana, 46202 USA; Tel: +1-317-278-7892; Fax: +1317-278-4102; E-mail: rlk.nanotech@gmail.com

Purpose:

The purpose of this study was to evaluate the effects of two simulated saliva (SS) remineralization solutions comprising different calcium-inorganic phosphate (Ca/P_i) ratios on eroded enamel.

Methods:

3 mm diameter enamel cores were extracted from bovine teeth, mounted in acrylic rods, ground and polished,and initially demineralized with either 0.3% (120 minutes) or 1.0% (30 minutes) citric acid solutions (pH 3.8). Both sets of initially eroded specimens were evaluated for surface microhardness (N=10) and treated with either 0.3 or 1.6 Ca/P_i ratio SS. Groups were first exposed to a seven-day remineralization period and then were cycled in a three-day regimen consisting daily of three rounds of two-hour plus overnight SS treatments and three 10-minute static immersions in demineralization solution. Specimens were assessed using surface microhardness and scanning electron microscopy.

Results:

Initial erosion from 0.3% citric acid led to elliptical-shaped pore openings several microns in length and in depth and contrasted significantly with respect to 1% citric acid. The greatest remineralization was observed from the 0.3 Ca/P_i SS, while the 1.6 Ca/P_i SS produced the least.

Conclusions:

This study demonstrated the nature of remineralization of eroded enamel depends on both initial erosive conditions and the Ca/P_i ratio of simulated saliva.

Keywords:: Citric acid, calcium, phosphate, scanning electron microscopy, microhardness.

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RESEARCH ARTICLE

Remineralization of Eroded Enamel Lesions by Simulated Saliva In Vitro

Article Information

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Article History:

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Abstract

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About the Editor

About the Journal

The Open Dentistry Journal

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Press Release

Bentham Open Welcomes Sultan Idris University of Education (UPSI) as Institutional Member

Ministry Of Health, Jordan joins Bentham Open as Institutional Member

Prof. Dileep Sharma joins the Editorial Board of The Open Dentistry Journal

Porto University joins Bentham Open as Institutional Member

Testimonials