Chapter 11 & 12 Flashcards
1
Q
Morphology
A
study of the form of an organ or body part
2
Q
Tooth morphology
A
study of the size shape form and structure of teeth
3
Q
Primary dentition
A
baby teeth
4
Q
permanent dentition
A
adult teeth
5
Q
how many primary teeth are there?
A
20 teeth (10 per arch)
6
Q
Mixed
A
when primary teeth are exfoliating and permanent teeth are erupting
7
Q
Succedaneous teeth
A
permanent teeth that replace deciduous (primary) teeth
8
Q
Non-succedaneous
A
Last teeth to erupt don’t follow a primary tooth
9
Q
How many permanent teeth are there?
A
32 teeth (16 per arch)
10
Q
What teeth are replaced from primary to permanent teeth
A
first molar replaced by 1st pre molar,
second molar replaced by 2nd pre molar
11
Q
Another word for canines
A
cuspids
12
Q
permanent quadrant contains what
A
centeral incisor, lateral incisor, canine, 1st , 2nd premolar and 1st 2nd 3rd molars
13
Q
primary (deciduous) quadrant contains what
A
2 incisors( 1 central and 1 lateral), 1 canine, 1st and 2nd molar
14
Q
mesial
A
toward the midline
15
Q
distal
A
away from the midline
16
Q
lingual
A
inside, toward the tongue
17
Q
labial
A
outside, towards lips
18
Q
incisal
A
bitting or cutting edge (eg incisors)
19
Q
buccal
A
outside, towards the cheek
20
Q
occlusal
A
grinding or chewing surface. Flatter/bigger surface. eg) molars
21
Q
Cusp
A
major elevation on surfaces of the canines and posterior teeth
22
Q
fossa
A
wide shallow depression on the LINGUAL surfaces
23
Q
cingulum
A
raised rounded area on the cervical third of the lingual surface
24
Q
ridge
A
a thin elongated surface.
25
mamelon
rounded enamel on the incisal edge on newly erupted incisors
26
cusps of carabelli
5th cusp found on lingual to the mesiolingual cusp. only ever on permanent 1st maxillary molar and primary 2nd molars.
27
Referred to as the cornerstones
canines
28
Which tooth on permanent maxillary has 2 roots
1st maxillary premolar
29
Another word for premolars
bicuspids
30
how many roots do permanent maxillary molars have
3
31
how many roots do permanent mandibular molars have
2
32
height of contour
the bulge or widest point on a surface of the crown
33
exact spot at which the teeth actually meet
contact point
34
triangular space between two teeth, when two teeth in the SAME ARCH contact.
embrasure
35
where is the extra 5th cusp found on
permanent maxillary 1st molar and primary 2nd molars
36
contours
helps tooth stay healthy. crown of the tooth narrows towards the cervical line
37
what do curvatures do
provide natural passageways for food and protect the gingiva during chewing (mastication)
38
apical third
nearest the tip of the root
39
middle third
nearest the middle of the root
40
cervical third
nearest the neck of the tooth
41
(primary and permanent) have how many roots on anterior teeth , incisors, central, canines
1 root
42
all maxillary molars have 3 roots except
3rd molar
43
the first digit indicates
quadrant
44
the second digit indicates
the tooth
45
t/f; primary teeth have premolars
false
46
how is the PRIMARY universal numbering system labeled
A-T
47
How is the PRIMARY palmer notation numbering system labeled
with brackets A-E
48
how is the PRIMARY FDI notation numbering system labeled
1-5
49
how is the PERMANENT universal numbering system labeled
1-32
50
how is the PERMANENT fdi numbering notation system labeled
1-8
51
How is the PERMANENT palmer notation numbering system labeled
with brackets 1-8
52
occlusion
when teeth in the maxillary and mandible are in contact closed position
53
how long do primary teeth last
6months-6years
54
another word for primary
deciduous
55
what do primary teeth do
assist with speech, provide chewing surfaces to strengthen. Important to guide permanent teeth
56
when do mixed teeth last
6 -12 years
57
t/f; Permanent molars are non-succedaneous since they're last to erupt
true
58
wisdom teeth are known as the
3rd molars
59
t/f; cusp of carabelli is usually on the lingual side
true
60
t/f; all anterior teeth have a cingulum a rounded raised area on the cervical third of the lingual surface
true
61
what do molars help in
chew and grind food, have a wider surface
62
which molar has fused roots
3rd molar
63
centric occlusion
jaws are closed in a position that produces stable contact between occluding surfaces of the maxillary and mandibular teeth
64
functional occlusion
contact of the teeth during biting and chewing. (in motion)
65
malocclusion
abnormal or malpositioned relationship of the teeth
66
curve of spee
the curve formed by the maxillary and mandibular arches in occlusion. (line right threw posterior to anterior)
67
curve of Wilson
a line is drawn across the occlusal surface of left mandibular first molar across through the occlusal of the right mandibular first molar
68
What tooth is the smallest in the dentition
mandibular centeral incisor
69
what tooth is to erupt first and what year
primary mandibular central incisor 6-10 months
70
how many roots are on the 1st 2nd 3rd molars of the permanent maxillary
3 roots
71
how many roots are on the 1st 2nd 3rd molars of the permanent mandibular
2 roots
72
how many roots are on the 1st 2nd molars of the primary maxillary
3 roots
73
how many roots are on the 1st 2nd molars of the primary mandibular
2 roots
74
what is the largest crown in the maxillary dentition
1st molar
75
what time period do primary dentition happen
6 months - 6 years
76
what time period do mixed dentition happen
6 years - 12 years
77
what time period do permanent dentition happen
after 12 years
78
class I (neutroclusion)
mesiobuccal cusp of the permanent maxillary 1st molar occludes with the mesiobuccal groove of the mandibular 1st molar. Crowding may occur
79
class II (distoclusion) division 1
(overbite) maxillary incisors are in labioversion (extend facially beyond the normal overlap of incisal edge of mandibular incisors
80
class II (distoclusion) division II
maxillar central incisors are positioned at a normal angle, lateral incisors are tipped labially and mesially
81
class III (mesioclusion)
(underbite) the lower jaw moves forward. mesiobuccal cusp of permanent maxillary molar occludes by more than the width of a premolar,
82
every tooth has 2 antagonists except
mandibular centeral incisors, maxillary 3rd molars
83
Most prominent groove on posterior teeth
central groove
84
which tooth is to erupt last on permanent
3rd molar
85
which tooth is to erupt last on primary
2nd molar
86
pit
two grooves coming together in a point usually on occlusal sometimes buccal
87
class I
the pits & fissures of occlusal surfaces of molars/premolars
88
class II
proximal (mesial and distal) surfaces of premolars and molars . (can also include occlusal)
89
class III
proximal (mesial and distal) surfaces of anterior teeth ( incisors/canines)
90
class IV
proximal (mesial and distal surfaces) of anterior teeth but involves the incisal edge.
91
class V
a gingival third of the facial or lingual surfaces
92
class VI
on the incisal edge of anterior teeth and the cusp tips of posterior teeth.
93
permanent maxillary 1st and 2nd pre molars have how many cusps
2
94
How many cusps are on 1st 2nd 3rd molars
4 cusps but first molar has 5
95
Mandibular first and second pre molars have how many cusps
2
96
second premolar of maxillary permanent has how many roots
1
