Midterm Flashcards
(141 cards)
1
Q
Calcification:
3-4 months (3)
A
max central
mand central and lateral
2
Q
Calcification:
4-5 months (2)
A
max canine
mand canine
3
Q
Calcification:
10-12 months
A
max lateral
4
Q
Calcification:
1.5-1.75 years
A
max 1st premolar
5
Q
Calcification:
2-2.25 years
A
max 2nd premolars
6
Q
Enamel Completion:
4-5 years (4)
A
max central and lateral
mand central and lateral
7
Q
Enamel Completion:
5-6 years
A
max 1st premolar
8
Q
Enamel Completion:
6-7 years (3)
A
max canine and 2nd premolar
mand canine
9
Q
Root completion:
8-9 years
A
mand central
10
Q
Root completion:
9-10 years
A
max central
11
Q
Root completion:
10-11 years
A
mand lateral
12
Q
Root completion:
11 years
A
max lateral
13
Q
Root completion:
12-14 years (3)
A
max premolars (1 and 2)
mand canines
14
Q
Root completion:
13-15 years
A
max canine
15
Q
which side of CEJ is more curved usually
A
MESIAL
16
Q
which way does root normally tilt
A
distal
17
Q
which side is the root depression more prominent on?
A
DISTAL
18
Q
what is another name for gingival third
A
cervical third
19
Q
how many lobes on anterior and canines
A
4 lobes
20
Q
what are succedaneous teeth
A
permanent teeth that REPLACE primary teeth
21
Q
what teeth are considered succedaneous teeth
A
anteriors, canines, premolars
NOT MOLARS -> they dont replace baby teeth
22
Q
what is ugly-duckling stage and when is it
A
mixed dentition 6-12 yrs old
23
Q
palmar numbering system is used in
A
ortho. uses brackets and quads
24
Q
what does DAST stand for
A
dentition
arch
side
tooth
25
what tissue makes up bulk of tooth
dentin
75% hydroxy
26
what tissue covers root
cementum
65% hydroxy
27
what covers the crown
enamel
hardest thing in body but also brittle! need dentin to support it
95% hydroxy
28
what are the types of periodontal ligaments (5)
alveolar crest \\\ angled like that
horizontal (root to tissue)
oblique /// angled like that
apical (end of roots)
interradicular (b/w roots on bi/trifurication)
29
a line angle is formed by the junction of 2 surfaces
the junction of 2 surfaces
mesial-facial LINE ANGLE
30
what is a point angle formed by
3 touching surfaces
mesial-facial-incisal POINT ANGLE
31
what are embrasures
triangles b/w teeth
proximal ones are filled by gingival papilla
32
what are the fine lines on teeth called
parikymata
33
function incisors
cut food, speech, lip support
34
max incisors HOC
FL: cervical third
M: incisal third
D: junction of incisal/middle third
35
are max incisors longer or shorter than lateral?
LONGER!
36
3 anaomlies of max incisors
longer crown
shorter root
shovel shaped incisors
37
MD <> FL for max central inscior
MD>FL
38
what side of max central is more curved at incisal
distal incisal angle is curved
39
what side of max central is more straight at incisal
mesial incisal angle is more straight
40
what shape is the crown incisaly on max incisor
triangular
wedge from mesial/distal
41
where is incisal ridge located on max central insicor insical view
lingual!
42
lateral max incisor anomalies (4)
peg laterals
missing!!
dens in dente
developmental groove (extends from pit on lingual cingulum
43
what is difference on lateral incisor from central
crown is more slender, root longer and skinner
overall much rounder from inscial view
lingual fossa much more pronounced
44
where is the incisal edge located on max lateral incisor from insial view
central on tooth MD
45
lateral max incisor HOC
FL: cervical third
M: incisal third
D: junction of incisal/middle third
46
lateral max incisor MD<>FL
MD>FL
47
what is the very first tooth to erupt
mand central incisor
48
mand central incisor FL<>MD
FL>MD
49
mand central incisor roots/canals
usually 1 root and canal but sometimes 2 canals!!
50
mand central incisor incisal edge angle facially and incisallyt
STRIAGHT F
lingual from Incisal
51
mand central incisor cingulum
inconspicuous!
52
do mand central incisor have developmental depressions on roots?
YES! M and D
D much more DEEP
53
what teeth have the I beam effect
mand central/lateral incisor
54
mand central incisor HOC
FL: cervical third
MD: incisal third
55
mand lateral incisor FL<>MD
FL>MD
56
mand lateral incisor canals
usually 1 canal sometimes 2
57
mand lateral incisor smaller or larger than central?
larger a little
58
mand lateral incisor cingulum
off to DISTAL!
59
mand lateral incisor incisal edge
bent lingually from incisal view
DISTOLINGUAL TWIST!!
60
mand lateral incisor root depressions?
YES! M and D
D more pronounced
61
mand lateral and central incisor cingulum differeneces
LATERAL: displaced distally
CENTRAL: middle
62
mand lateral and central incisor incisal edges from incisal view
LATERAL: distolingual twist
central: straight on
63
anamolies of mand incisors
fusion, gemination, and concrescence
64
fusion
2 roots and 2 teeth but crowns fuse together
65
germination
one root with 2 crowns
66
twinning
type of gemination. tooth ends up splitting completely -> extra tooth
67
concrescene
2 independent teeth fused together on roots usually molars
68
max canines function
CHEW! cornerstones! nearly irreplaceable. supports lip. protective guideposts in occlusion
69
what tooth is the transition tooth
canines! ant -> post
70
what tooth has the largest and strongest roots
canines
71
what is the first tooth with a cusp
canines
72
what cusp ridges does a canine have
mesial cusp ridge and distal cusp ridge
73
max canines cinglum
greater development than incisors
74
max canines FL<>MD
FL>MD
75
max canines HOC
FL: cervical thirds/gingival thirds
M: junction of incisal/middle
D: middle third
76
how many cusps does a canine have
1 cusp
77
how many canals does max canines have
1 canal
78
max canines cusp tip is (incisal view)
facial to a bisecting line
79
what can we see in gum line on canines
eminence
80
which lobe on max canine has a prominent labial ridge
middle F lobe
81
the middle F lobe on a max canine has what
a prominent labial ridge that forms M and D shallow depressions
82
max canines: which cusp ridge is shorter/longer
mesial cusp ridge: shorter
distal cusp ridge: longer
83
what in on the lingual side of max canines
distolingual fossa
mesiolingual fossa
lingual ridge (forms ^)
distal and mesial marginal ridges
84
what shape is max canines crown from M/D
wedge shaped crown
85
max canines cusp tip is from incisal view
facial and mesial
86
is root wider FL and MD on max canines
FL. largest on any tooth!
87
max canines: do they have root depressions?
yes! M and D
D more prominent and can extend beyond CEJ onto crown!! HUGE
88
max canines: how many canals
ALWAYS one
89
mand canines: FL<>MD
FL>MD
90
mand canines: root curves?
mesial! can be distal though too. not reliable
91
mand canines: canals
mostly 1, rarely 2
92
mand canines HOC
FL: cervical third
M: incisal third
D: junction of incisal/middle third
93
mand canines anomaly
bifurcation of roots
94
mand canines crown shape M/D
wedge shape
95
mand canines cingulum
slightly distal-> distolingual twist!
96
mand canines vs max canines
which crown can be longer
mand crown can be longer than max
97
mand canines vs max canines
which root can be longer
max longer
98
mand canines vs max canines
which has smoother facial surface and less bulk and less cinglum
mand canines
99
mand canines vs max canines
which cusp is more developed
max
100
mand canines vs max canines
more prominant marginal ridges
max
101
mand canines vs max canines
cusp tips on each are located (D/M view)
MAND: lingual
MAX: F
102
mand canines vs max canines incisal edge are located (incisal view)
MAX: striaght
MAND: distolingual twiast
103
what teeth do the premolars replace
deciduous molars
104
where are cusps located on max premoalrs
buccally and lingually and well as the roots
105
HOC max premolars facial aspect
M and D: middle third
106
HOC max premolars promixal aspect
buccal: cerivcal third
lingual: middle third
107
HOC max premolars occlusal aspect
M: junction of middle and buccal thirds
D: middle third
BL: middle third
108
what shape of crown is max 1 premolars
trapezoidal from MD
109
max 1 premolars how many roots/canals
2 roots and 2 canals!!
even if it has 1 root, still 2 canals
110
max 1 premolars FL<>MD
FL>MD
111
max 1 premolars- which cusp is 1mm longer
buccal
112
max 1 premolars: which lobe is highly delveopled
middle buccal lobe (like canine!)
113
max 1 premolars:
is crown shorter or longer than canine
shorter
114
max 1 premolars:
is M cusp ridge of buccal cusp longer or shorter than the D
M is longer
115
max 1 premolars: mesial buccal cusp ridge is
striaght and long
116
max 1 premolars
distal buccal cusp ridge is
short and curved
117
max 1 premolars: buccal root leans
L
118
max 1 premolars: lingual root leans
striaght usually
119
max 1 premolars:
2 key features
mesial marginally developmental groove (extends across mesial marginal ridge onto mesial proxiaml surface)
mesial developmental depression (extends more mesial contact area down middle of root to bifurcation)
120
max 1 premolars: mesial marginal ridge is more _____ than the distal
occlusal
121
max 1 premolars: CEJ
barely any! Distal is basically 0
122
max 1 premolar: crown is convex/concave
convex everywhere almost!
123
max 1 premolars: marginally groove distally?
NOPE!
124
max 1 premolars: which shape from incisal view
hexagonal shape
125
max 1 premolars: what forms occlusal table
cusp ridges and marginal ridges
126
max 1 premolars: buccal and lingual cusp tip from incisal view
buccal cusp tip: is DISTAL and facial**** this is exception to rule! ALL other premolars have buccal cusp slightly mesial
lingual cusp tip: mesial and lingual (both premolars)
127
max 2 premolars: FL>
FL>MD
128
max 2 premolars: how many cusps
2
129
max 2 premolars:how many roots
1 root and 1 canal!!
130
max 2 premolars: differences between 1st PM
root can be longer
SINGLE root
more rounded
131
max 2 premolars: mesiobuccal cusp ridge is ______distobuccal cusp ridge
SHORTER!
opposite for 1 PM
132
max 2 premolars: cusps are
very similar in length. (shorter than 1 PM)
lingual is longer than 1 PM
133
max 2 premolars: greater/less distance b/w cusp tips
GREATER
134
max 2 premolars: depressions on root?
yes on M and D. M not extending below or on CEJ
D root depression is deeper than M(Oppsoite for 1PM)
135
max 1 premolars: root depressions
YES! M and D. **M IS DEEPER THAN D
136
max 2 premolars: what type of appearance does it have
wrinkled
137
max 2 premolars vs 1 premolars
cusp tip locations facial view
1: D
2: M
138
max 2 premolars vs 1 premolars
cusp ridges faical view
1: M is longer. D shorter
2: M is shorter. D longer
139
max 2 premolars vs 1 premolars
root depressions
1: M more prominent
2: D more prominent (rule)
140
max 2 premolars vs 1 premolars
shapes incisally
1: hexagonal
2: round
141
max 2 premolars vs 1 premolars
roots/canals
1: 2 roots, 2 canals
2: 1 root, 1 canal
