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Updated: Sep 25, 2026

Microhardness Measurements on Tooth and Alveolar Bone in Rodent Oral Disease Models
Published on: April 26, 2024
Imaging of human tooth enamel using ultrasound
M Culjat1, R S Singh, D C Yoon
1School of Engineering and Applied Science, University of California, Los Angeles, CA 90095, USA. mculjat@seas.ucla.edu
Abstract:
This paper reports the results of a complete circumferential scan of a human tooth and its underlying dentino-enamel junction using ultrasound at frequencies in the 10-MHz range. The imagery shows clearly a two-dimensional contour of the dentinoenamel junction with a depth and lateral resolution of approximately 100 microm and 750 microm, respectively. The resulting sonograph is compared with an optical micrograph of the same tooth to verify the accuracy of the ultrasonic technique. The results are a significant step toward the biolocation of submillimeter size features within the tooth volume.
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