oral mucosa, gingiva, dentition and periodontum

what are the types of oral mucosa?

lining, masticatory, specialized

where is lining mucosa?

1. labial

2. buccal mucosa

3. ventral tongue

4. floor of mouth

5. soft palate

where is masticatory mucosa?

hard palate, attached gingiva

where is specialized mucosa?

dorsal and lateral tongue

what does nonkeratinized mean?

no keratin, least resistant

what does orthokeratinized mean?

keratin layer, most resistant

what does parakeratinized mean?

keratin with nuclei, medium resistance

what kind of keratin does buccal/labial mucosa have?

nonkeratinzed (thick, shiny)

what kind of keratin does alveolar mucosa have?

nonkeratinized (thin, shiny)

what kind of keratin does ventral tongue/floor of mouth have?

nonkeratinized (extremely thin)

what kind of keratin does soft palate have?

nonkeratinized (pink with yellow hue, thin)

what kind of keratin does hard palate have?

orthokeratinized (firm, pale)

what kind of keratin does attached gingiva have?

parakeratinized (firm, stippled)

what is the most numerous lingual papillae?

filiform

where are filiform papillae?

towards the tip of tongue, no taste buds

what are fungiform papillae?

taste buds on top

where are foliate papillae?

lateral tongue, taste buds on side

what are circumvallate papillae associated with?

von ebner glands

which gingival tissue includes col?

marginal (free) gingiva

where does the attached gingiva end?

mucogingival junction

what does the marginal gingiva form?

scalloping around CEJ

what does the sulcular epithelium form?

gingival suclus

where does junctional epithelium originate from?

reduced enamel epithelium

what forms the DEJ?

sulcular + epithelial junction