exam 1 chapter 1 Flashcards
dentitions provide 5 basic functions: what are they
prehension protection esthetics speech/communication mastication
with universal system permanent dentition, what is maxillary canines
6 and 11
with universal system permanent dentition, what is mandibular canines
22 and 27
start and end at for dentition
start at maxillary right molar; end at mandibular right molar
maxillary central incisors permanent universal dentition
8 and 9
mandibular central incisors permanent universal dentition
24 and 25
universal primary dentition, start and end with
start with max right 2nd molar; end with mandibular right 2nd molar; only 2 molars and no premolars
maxillary central incisors for primary dentition
e and f
mandibular central incisors for primary dentition
p and o
maxillary canines for primary dentition
c and h
mandibular canines for primary dentition
m and r
palmar notation permanent dentition numbering
1-8 beginning with central incisors in each quadrant
palmar notation primary dentition numbering
a-e beginning with central incisors in each quadrant
palmar notation canines
3
palmar notation maxillary
number above the line
palmar notation mandibular
number below the line
forms outer surface of anatomical crown; most densely mineralized tissue in body; smooth and self-cleaning
enamel
bonelike substance that covers the root; provides medium for attachment of tooth to bone; yellow; thinnest at cervical line, thickest at apex; not as hard as enamel, similar to bone
cementum
where roots separate
furcation
forms body of tooth; less hard than enamel but harder than cementum and bone; can take forces and pressure; has some give to it
dentin
type of dentin– before completion of apical foramen(embryo)
primary dentin
type of dentin– after apical foramen complete(root of tooth) throughout life
secondary dentin
type of dentin– stimulated to produce when trauma or injury of tooth
reparative dentin; tertiary dentin
housed in the center of tooth, surrounded by dentin; nourishment, sensory, formative, denfensive
pulp
has blood vessels, lymph vessels, connective tissue, nervous tissue, odontoblasts
pulp composition
part of tooth visible in mouth, sticking out of gingiva; all of it up to gingiva
clinical crown
the part of tooth you cannot see because it is under gingiva
clinical root
cementoenamel junction also called
cervical line
how many surfaces does a tooth have
anterior- 5 and posterior-5
what are the surfaces closest to the tongue
lingual
what are the surfaces that touch the cheeks and lips called
facial/buccal/labial
the mesial surfaces or 8 and 9 touch each other true or falso
true
what are occlusal surfaces used for
biting/chewing
what is a proximal surface
next to each other( distal and mesial of tooth touch)
formed by the junction of 2 surfaces(corner where facial and mesial of 8 meet) ex distolabial, mesiolingual
line angle
junction of 3 crown surfaces(molar)
point angle
each tooth has how many point angles
4
what is the lingual lobe on anterior teeth called
cingulum
anterior teeth form from how many lobes
4 lobes(three facial and one lingual)
premolars form from how many lobes
3 facial lobes and one lobe per lingual cusp
molars form from how many lobes
one lobe per major cusp
lingual lobe of an anterior tooth and makes up the bulk of the cervical third of the lingual surface
cingulum
rounded borders of that form the mesial and distal shoulders of the lingual surface of anterior teeth and the occlusal surface of posterior teeth
marginal ridge
cervical ridge on anterior teeth
facial side
cervical ridge on posterior teeth
buccal and lingual cervical ridges
ridge of each cusp that runs from the tip of the cusp to the central part of the occlusal surface
triangular ridge- on all teeth!!
the union of two triangular ridges; buccal and lingual ridges cross the occlussal surface of a posterior tooth (buccal to lingual)
transverse ridge; not every tooth has them
the only tooth on which this ridge is found is on the maxillary molar
oblique ridge
consists of an elevated prominence on the occlussal surface and extends obliquley from the tips of the mesiolingual cusp to the distobuccal cusp
oblique– diagonally
the distinctive height of curvature seen in the cervical third of the buccal surface of a posterior tooth; mufin top of tooth; close to CEJ; height of contore
cervical ridge
the distictive height of curvature seen in the middle third of the facial surface of the crown on an anterior tooth. it runs cervicoincisally; cervical line to incisal edge(middle lobe; sticks out more)
labial ridge
fissure between the cusps on the crown of the tooth; junction forms this
developmental groove; where lobes come together
a minor, auxillary groove that branches off from a much more prominent developmental groove; they do not represent the junction of primary tooth parts and gives the occlusal surface a wrinkled appearance
supplemental groove
a rounded or angular depression of varying size found of the surface of a tooth
fossa
centrally located depression found on the occlusal surface of molars and mandibular second premolars. the other premolars have mesial and distal triangular fossa, but do not have this
central fossa
irregular, shallow depression found on the lingual surface of an incisor or canine
lingual fossa
located adjacent to the marginal ridges on the occlusal surfaces of posterior teeth. two types are the mesial and distal
triangular fossa
a depression; carved out section/area
concavity
an elevation; buldiing section/area
convexity
