Ultrasound is readily conducted across a boundary when the specific acoustic impedances of the two media are about equal. The specific acoustic impedance of dental enamel is about that of aluminum. A longitudinal sonic pulse, less than 250 nanoseconds in duration, conducted to the tooth through an aluminum rod, has positively detected the enamel-dentin junction as well as the dentin-pulp interface.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1126/science.161.3840.477 | DOI Listing |
Publication Analysis
Top Keywords
specific acoustic
8
teeth ultrasound
4
ultrasound ultrasound
4
ultrasound conducted
4
conducted boundary
4
boundary specific
4
acoustic impedances
4
impedances media
4
media equal
4
equal specific
4
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!