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Learning Link 3

Tooth origin and formation

QuestionAnswer
deciduous falling off teeth "baby teeth"
dentition permanent teeth
initiation 1st stage
proliferation 2nd stage, includes the bud and early cap stages
dental organ gives the tooth bud it's coloring
dental papilla makes up the inner structures of the tooth, such as the dentin and the pulp
mesoderm middle layer
dental sac makes up the surrounding covering for the dental organ and papilla
odontoblasts cell growth to form the dentin, the bulk of the tooth
ameloblasts cell growth to form the enamel covering tissue of the tooth
cementoblasts cell growth to form the root-covering cementum tissue
fibroblasts cell growth to form the periodontal ligaments
osteoblasts cell growth to form alveolar bone and the alveolar plate
defferentiation 3rd stage, changes in tooth bud shape and makeup
apposition 4th stage, mineral salts and oeganic matter are set down in place for tissues and tooth formation
calcification 5th phase, characterized nu the hardening and setting of tooth tissues
eruption 6th stage, "cutting of the teeth" it occurs when the tooth moves toward the oral cavity and enters through the tissues
attrition last stage, wearing away occurs where teeth interact through mastication and speech
odontoclasts cells that bring about absorption of primary tooth roots
cementoclasts cells that destroy tooth cementum
osteoclasts cells that destroy or cause absorption of bone tissue
anomalies changes or disturbances during any of the development stages can cause a variety of tooth irregularities or abnormalities
amelogenis imperfecta a genetic disorder resulting in the formation of defective enamel
anodontia partial or total lack of teeth
germination single tooth germ separating to form two crowns on a single root
enamel a hard tooth covering that is 96 percent inorganic
lamellae cracks or imperfections in enamel tissue extending toward or into te dentin
dentin the main tissue surrounding the pulp
pulp found in the center of the tooth
pulpitis also called toothache
pulp stone small growth on tooth
pulp cyst a closed, fluid filled sac within the pulp tissue
granuloma a growth or tumor usually found in the root area
lacuna tiny cavities that may contain cementocytes
canaliculi small channels or canals
periodontal membrane, fibers that anchor the tooth in the alveolar socket
alveolar bone, bony sockets, or crypts for teeth placement in the maxillae and the mandibular bones;
gingiva mucous tissue surrounding the teeth. Also known as gum tissue
alveolar bone is composed of an alveolar socket and a dense covering of compact bone with an inner and outer growth called cortical plate.
cementum the function of the cementum in the periodontium is to provide anchorage for the tooth in the alveolar socket.
odontology the study of teeth and their form
oblique fibers attach the alveolar socket to the majority of the root cementum and assist in resistance of the axial forces
apical fiber bundles present in multirooted teeth, extending apically from the tooth furcation
keratinized hard tissue, area where the gingiva and mucous membrane unite
marginal the portion that is unattached to underlying tissues and helps to form the sides of the gingival
oblique fibers attach the alveolar socket to the majority of the root cementum and assist in resistance of the axial forces
apical fiber bundles present in multirooted teeth, extending apically from the tooth furcation
keratinized hard tissue, area where the gingiva and mucous membrane unite
marginal the portion that is unattached to underlying tissues and helps to form the sides of the gingival
papillary the part of the marginal gingiva that occupies the interproximal spaces
maxillary upper tooth area
mandibular lower tooth area
arch half of the mouth, either maxillary or mandibular
quadrant half of an arch, right or left, and containing eight teeth
anterior front area of the mouth
posterior area back from the corners of the mouth
incisors single-rooted anterior teeth with a sharp citting edge
canines single-rooted anterior teeth at the corners of the mouth
crown the top part of the toothm containing the pulp chamber, dentin, and enamel covering
anatomical crown covered with enamel and may not be totally visible, but will be present the entire life of the tooth
clinical crown surface visible in oral cavity
root bottom part of the tooth
cervical line the place where the enamel of the crown meets the cementum of the root
apex tip of a tooth
contact area surface point or area where two teeth meet side by side
embrassure V-shaped area between contact point of two teeth and gingival crest
proximal surface side wall of tooth that meets or touches side wall of another tooth
axial surfaces long-length surface of tooth
line angle meeting of three surfaces on a tooth, such as mesial, incisal, and labial
midline imaginary vertical line bisecting the head at the middle of the face
antagonist tooth that counteracts, occludes, or contacts another tooth in the opposing arch
facial surface of the tooth toward the cheek and lips
buccal posterior teeth surface toward the cheeks
labial anterior teeth surface toward the lips
lingual surface of teeth toward the tongue
mesial side surface of tooth closest to midline
distal side surface of the tooth farthest from the midline of the face
chewing surface that meets with the opposing teeth to complete the tooth's functions
incisal cutting edge of anterior teeth
occlusal grinding or chewing surface of premolars and molars
apical relative to root-tip end of tooth
cingulum smooth, convex, or rounded bump on the lingual surface near the cervical line on anterior teeth
ridge a linear elecation that receives its name from its location, such as lingual and marginal ridge
marginal ridges rounded enamel elevations on occlisal surface of posteriors
transverse ridge occurs on occlusal surface of posterior teeth at a point where two triangular ridges meet
mamelon bumps forming a scallop border of the incisal edge of newly erupted anteriors
labial teeth toward lips
lingual teeth toward tongue
macrodontia abnormal large teeth
fissure groove, slit, or break in enamel surface of a tooth
eminence high place, projection
fluorosis reaction to overfluorosis
dentinogenesis genetic disoeder, gray-colored
supernumerary more than normal amount of teeth
cingulum smooth, convex, or rounded bump on the lingual surface
Created by: LindseyT