What does the body do in sulcular epithelium to cells?
The sulcular epithelium shares many of the characteristics of the attached epithelium (junctional epithelium), including good resistance to mechanical forces and relative impermeability to fluid and cells.
What is mucoperiosteum and where is it found?
Is a structure consisting of a mucous membrane combined w/ the periosteum of the adjacent bone.
It attaches to the underlying bones of the palate w/o the intervening submucosa, providing a firm, inelastic attachment.
Definition of periodontics:
Branch of dentistry specializing on the supporting structures of the teeth and gums.
What is the dentogingival junction?
the junction between the tooth surface and the gingival tissue.
What is another name for crevicular epithelium?
Sulcular epithelium
What are you measuring w/ a periodontal probe?
The depth of the sulcus.
The depth of a healthy gingival sulcus varies from 0.5-3mm w/ an average of 1.8mm.
What is the tissue between adjacent teeth?
Interdental papillae (triangular shaped).
Three categories of oral epithelium:
Lining mucosa: found in buccal, labial, & alveolar mucosa, ventral surface of the tongue, floor of the mouth, & the soft palate. Nonkeratinized, few rete ridges, elastic fibers in lamina propia & submucosa.
Masticatory mucosa: Found in the attached gingiva, hard palate,& dorsal surface of the tongue. Keratinized, w/ many rete ridges.
Specialized mucosa: found on the dorsal & lateral surface of the tongue. Taste buds.
Lining mucosa:
found in buccal, labial, & alveolar mucosa, ventral surface of the tongue, floor of the mouth, & the soft palate. Nonkeratinized, few rete ridges, elastic fibers in lamina propia & submucosa.
Masticatory mucosa:
Found in the attached gingiva, hard palate,& dorsal surface of the tongue. Keratinized, w/ many rete ridges.
Specialized mucosa:
found on the dorsal & lateral surface of the tongue. Taste buds.
Are there regions of the tongue that are taste specific?
False
How does the body help mount an immune response for bacteria in the junctional epithelium?
Thinner, nonkeratinized sulcular epithelium, fewer desmosomes, & more perpeable.
What structure separates the epithelium and underlying connective tissue of the oral mucosa?
Basement membrane
Circumvallate
7-15 large raised mushroom shaped structures anterior to sulcus terminalis, with taste buds (taste)
Foliate
4-11 vertical ridges on lateral surface of posterior tongue with taste buds in superficial part (taste)
Fungiform
Lesser numbers, mushroom shaped with taste buds in most superficial part (taste)
Filiform
Most common, fine pointed cones with no taste buds (mechanical function)
Types of lingual papillae:
Filiform, fungiform, foliate, and circumvallate
Parakeratinized epithelium
Cells contain keratin and nuclei
Orthokeratinized epithelium
Cells contain keratin but no nuclei
Col:
Near contact area, interdental gingiva forms a non visible saddle like depression between facial and lingual surface
