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41 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Cingulum is |
Enlagement of cervical 3rd on lingual surface of crown |
On anterior teeth only |
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Perikymata are |
Lines of imbrication, fine horizontal lines on newly erupted teeth |
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Tubercle is |
Small elevation on cingulum of anteriors or marginal ridges of posteriors |
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Mamelons are |
Tubercles on incisal edges of newly erupted inciaors |
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Attrition is |
Wearing away of tooth surface caused by rubbin against an opposing tooth |
Produces a facet, a flat shiny spot on cup slopes or triangular ridges. |
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Fossa is a |
Depression or hollow on lingual of max incisors and occlusal of all posteriors |
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Developmental groove is |
Depression formed during development. Separates lobes of teeth -named by location |
Can see on mamelons |
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Supplemental grooves are |
Small, irregular grooves, usually on occlusals -named for their location |
Mesiobuccal supplemental groove |
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Fissure is a |
Narrow crevice formed at depth of a developmental groove during tooth development. |
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Pit is a |
Small deep depression at the junction of developmental grooves or the end of a groove, deepest part of a fossa |
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Depression is a |
Shallow, concave, gentle valley on the facial surfaces of incisors and some roots |
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Carabelli is |
5th cusp on 1st molar. |
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Embrasure is an |
Open space between the proximal surfaces of two adj. teeth in the same arch, where they diverge they diverge facially, lingually, incisally (occlusally), cervically from contact area. |
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What acts as a spillway to direct food away from the gingiva? |
Embrasures |
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Crest of curvature or height of contour is |
Highest point of a curve. The greatest convexity or bulge on surfaces of crowns. |
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What is the physiological loss (shedding) of deciduous(primary) teeth? |
Exfoliation |
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What is one of the primary anatomical divisions of the tooth crown, usually separated by developmental groovesl |
Lobe(s) |
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Line angle is the |
Line or angle formed by the junction of two crown surfaces. Named by. Combining the names of two surfaces. |
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Point angle is |
Point at the junction of 3 crown surfaces |
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What is the space between maxillary central incisors called? |
Diastema |
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What are teeth that don't succeed primary dentition? |
Nonsuccedaneous teeth, 1st, 2nd, 3rd molars |
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masticatory mucosa |
-gingiva -hard palate |
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lining mucosa |
-inner surfaces of lips & cheeks -floor of the mouth -ventral surface of the tongue -soft palate -alveolar mucosa |
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specialized mucosa |
-dorsum of tongue -papillae |
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what surrounds cervical part of tooth, covers areas used during mastication of food, is keratinized to withstand forces of mastication, and is firmly attached to underlying tissues? |
masticatory mucosa |
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what is thin, movable, easily injured, nonkeratinized, not firmly attached to underlying tissues? |
lining mucosa |
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what is filiform papillae? |
most numerous, threadlike, keratinized |
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what is fungiform papillae? |
large, red, mushroom-shaped, contain taste buds |
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what is circumvallate papillae? |
10-14 large, round, make a |
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What is foliate papillae? |
vertical grooves, lateral posterior of tongue, taste buds |
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what is the functional unit of tissues that surrounds and supports the tooth? |
periodontium |
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what are the 4 components of the periodontium? |
-gingiva -periodontal ligament -cementum -alveolar bone |
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the alveolar bone is |
-supporting bone -resorbed when tooth is lost -provides attachment for -periodontal ligament fibers |
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lamina dura is |
surrounds toot socket seen on x-ray as radiopaque & is where sharpeys fibers attach to alveolar bone |
in the alveolar bone |
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what are the 5 principal fiber groups of the periodontal ligament? |
-alveolar crest -horizontal -oblique -apical -interradicular (between roots of multirooted teeth) |
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what are the gingival fiber groups? |
-dentogingival (free gingival) -alevologingival (attached gingiva) -circumferential (circular) -dentoperiosteal (alveolar crest) -transseptal |
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what is composed of fiber attaching to the alveolar bone and cementum, is a hammock the tooth sits in, & acts as a shock absorber? |
periodontal ligaments |
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the socket the tooth sits in is called |
the alveolus |
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what are sharpeys fibers? |
the ends of collagen fibers from the periodontal ligament that are inserted into the cementum on one side and the bone |
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what is movable tissue that is loosely attached to underlying bone, non-keratinized, smooth, shiny, reddish, vascular, fragile, delicate tissue and has frena? |
alveolar mucosa |
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what extends from the gingival margin to the base of the gingival sulcus, attached with attached gingiva at free gingival groove & the tooth at the coronal portion of the junctional epithelium? |
free gingiva |
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