Across
- 7. 1905 syringe
- 8. process of becoming less or smaller
- 10. a salt of hydrofluoric acid
- 12. father of dental hygiene
- 13. tool used to pull teeth in 1810
- 14. the first dental hygentist
Down
- 1. famous dentist, revolutionary war
- 2. Scripps Spelling Bee 1986 word
- 3. they pulled teeth in the middle ages
- 4. first object used as toothbrush
- 5. drill used 7000 BCE
- 6. used to pull teeth in the 1600's
- 9. lacking sensation
- 11. used to pull infected teeth in 1810