Ch 16, 17, 18

3. The functional unit of tissues surrounding and supporting the tooth
6. Type of mucosa that covers the gingiva and hard palate
7. Stain color as a result of poor oral hygiene or chlorophyll preparations
8. One of the factors that affect the gingival tissues (2 words)
13. One example of calculus mineralization inhibitors used in "tartar-control" mouthrinses or dentifrices (2 words)
14. Serves as the attachment for periodontal fiber groups of the PDL
15. Medication that results in drug-induced stain when administered during tooth formation
17. Enamel hypo-mineralization that results from ingestion of excessive fluoride ions (2 words)
18. Major inorganic component of calculus composition
21. Stain that comes from an outside source (2 words)
22. Mucous membrane composted of connective tissue covered with stratified squamous epithelium (2 words)
23. Malocclusion class when the buccal groove of the mandibular 1st molar is distal to teh MB cusp of the maxillary 1st molar (number is spelled out)
25. Depression under the contact area between a lingual or palatal and facial papilla that conforms to the proximal contact area
27. Type of bacteria found in subgingival biofilm (3 words)
28. Lack of occlusal or incisal contact between teeth; Teeth cannot be brought together (2 words)

1. Provides a seal at the base of the pocket (2 words)
2. 3rd step in the formation of calculus
4. Gingival fiber group from the cementum in the cervical region into the free gingiva
5. Color of gingival tissue that is considered healthy (2 words)
9. Located in the first layer of supragingival biofilm
10. Critical pH averages 4.5-5.5 (2 words)
11. Severe form of gingival recession that's caused by occlusal trauma (2 words)
12. Type of stain that occurs within the tooth and cannot be removed by scaling or polishing
16. Important role of the acquired pellicle in the maintenance of the oral cavity
19. The part of the tooth covered by cementum (2 words)
20. Type of acquired pellicle that embeds with the tooth structure
21. Incisal surfaces of maxillary anterior teeth occlude with incisal surfaces of mandibular teeth (3 words)
24. Light calculus formers have higher levels of _________________.
26. Can be removed with an oral irrigator or tongue action (2 words)