Bestimmung akustischer Kenngrößen von Schmelz, Dentin und Alveolarknochen*

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Abstract
An ultrasonic method for periodontal diagnosis has been developed by the authors. A fundamental part of this work is the evaluation of the acoustical properties of the hard tissues: enamel, dentine and alveolar bone. Using an adapted measuring device, in combination with a computer-controlled signal acquisition and analysing system, acoustical parameters (velocity, impedance and frequency-dependent attenuation) are determined. The knowledge of these parameters is a prerequisite for a correct interpretation of A-mode and B-mode images, representing parts of the oral/facial aspect of a periodontium.

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