Across
- 4. the part of the tooth visible to the eye
- 5. a chemical that helps prevent tooth decay
- 7. hardened plaque that hurts gum health
- 8. another name for bad breath
Down
- 1. a dentist who prevents or corrects problems with the alignment or spacing of teeth
- 2. a thin, sticky film that builds up on teeth and leads to tooth decay
- 3. a common disorder in which the gums are red and sore and bleed easily
- 6. the hard material that covers the crown of the tooth