Preservation of microelastic properties of dentin and tooth enamel in vitro--a scanning acoustic microscopy study.

Preservation of microelastic properties of dentin and tooth enamel in vitro--a scanning acoustic microscopy study. Research Abstract Details 

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Preservation of microelastic properties of dentin and tooth enamel in vitro--a scanning acoustic microscopy study. Abstract Text:

Kay Raum,Katrin Kempf,Hans J Hein,J Schubert,Peter Maurer,Kay Raum,Katrin Kempf,Hans J Hein,J Schubert,Peter Maurer,

OBJECTIVES: The aim of this study was to examine the influence of storage media on the elastic properties of dentin and tooth enamel with respect to the storage period. Several reports suggest that saline and other aqueous solutions may induce chemical reactions and the dissolution of minerals, which in turn may cause alterations of elastic tissue properties. METHODS: Three non-erupted human wisdom teeth were extracted and divided in three slices. Sections were stored in three different media for a maximum period of 21 days. During this time all sections were inspected by time-resolved 50-MHz scanning acoustic microscopy. RESULTS: Storage in saline solution resulted in a progressive decrease of the acoustic impedance up to 70% in dentin but not in enamel tissue. Hank's balanced salts solution and artificial saliva appeared to maintain the elastic properties of dentin and enamel during the entire time of storage. The measurements of surface wave velocities did not show significant differences. High resolution (900 MHz) inspection of sections cut perpendicular to the surface exposed to the storage media for 21 days revealed a progressive increase of impedance in dentin up to the initial values at a depth of approximately 300 microm. SIGNIFICANCE: These findings suggest that quantitative SAM is a suitable tool for assessing surface and sub-superficial elastic properties of tooth tissue.

Preservation of microelastic properties of dentin and tooth enamel in vitro--a scanning acoustic microscopy study. Publishing Authors By Initials

K Raum,K Kempf,HJ Hein,J Schubert,P Maurer,K Raum,K Kempf,HJ Hein,J Schubert,P Maurer,

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Preservation of microelastic properties of dentin and tooth enamel in vitro--a scanning acoustic microscopy study. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Dental materials : official publication of the Aca

VOLUME: 23

Page Numbers: 1221-8

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ISSN: 0109-5641

DAY: 18

MONTH: 12

YEAR: 2006

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LANGUAGE: eng

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AFFILIATION: Department of Orthopedics, Martin Luther University of Halle-Wittenberg, 06097 Halle, Germany. kay.raum@medizin.uni-halle.de

Country: England

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MEDLINETA: Dent Mater

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