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NIH National Institute of Dental and Craniofacial Research (NIDCR) Home page
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Pulp Research and the High-Speed Drill

Timeline Display Date
1956

As inventors devised ever-faster dental drills, concerns grew about damage to dental pulp. In the mid-1950s, NIDR scientists Harold Stanley and Herbert Swerdlow evaluated different tools, speeds, and coolants and set guidelines enabling widespread adoption of high-speed drills. This "applied" research effort made NIDR a leader in studies of the nerves, blood vessels, and connective tissues in the dental pulp.

Herbert Swerdlow at work in the Clinical Center during the 1970s.
NIDCR
Herbert Swerdlow at work in the Clinical Center during the 1970s.
Edward Hamppand Trench Mouth
Explore an Interactive Timeline of NIDCR's History

Learn about important events, scientific breakthroughs, and publications starting in 1945.

Last Reviewed
December 15, 2025
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