Orofacial- Midterm Flashcards
(169 cards)
1
Q
The oral mucosa is composed of _____________ epithelium and connective tissue
A
stratified squamous epithelium
2
Q
= layer of dead cells no nuclei
a) Keratinized
b) Non-keratinized
c) Parakertinized
A
Keratinized
3
Q
= cells that are alive (have nuclei)
a) Keratinized
b) Non-keratinized
c) Parakertinized
A
Non-keratinized
4
Q
= dead and dying cells with and without nuclei
a) Keratinized
b) Non-keratinized
c) Parakertinized
A
Parakertinized
5
Q
Masticatory Mucosa is comprised of the ________ & _________.
A
gingiva and hard palate
6
Q
Thi mucosa is firm, thick & immovable & keratinized.
A) Masticatory
B) Lining
C) Specialized
A
Masticatory
7
Q
This mucosa is loose, flexible, and unattached tissue & non-keratinized
A) Masticatory
B) Lining
C) Specialized
A
Lining mucosa
8
Q
Lining mucosa is found in what 4 areas of the mouth
A
- labial/buccal (cheek) mucosa
- Alveolar Mucosa
- Soft palate
- ventral surface of tongue/floor of
mouth
9
Q
Specialized mucosa is found where
A
On the dorsal of the tongue
10
Q
Gingiva is divided into what 2 groups
A
Free gingiva
Attached gingiva
11
Q
Free gingiva and attached gingiva combine to form the peak of gingiva that extends coronally between teeth
A
Interdental papilla
12
Q
part of the interdental papilla that is apical to the contact area and connects the facial and lingual interdental papillae.
A
The col
13
Q
The col is
A) Keratinized
B) Non-keratinized
A
Non-keratinized
14
Q
Average depth of sulcus when measured
with a periodontal probe is about
A
1-3mm
15
Q
The sulcus is
A) Keratinized
B) Non-keratinized
A
Non-keratinized
16
Q
At the bottom of the sulcus is where the
gingiva attaches to the tooth
A
Attachment epithelium
17
Q
Interdental papilla is to
A
prevent food from impacting interproximally beneath the contact areas of teeth
18
Q
__________ is one of the first areas involved in
periodontal disease; it becomes swollen and blunted
A
Interdental papilla
19
Q
Tightly attached to the underlying
connective tissue and bone
A
Attached gingiva
20
Q
The first sign of periodontal disease is the loss of
A
Stippling
21
Q
The normal colour of this gingiva
A
Coral or pink
22
Q
In a diseased state, gingiva might become what color
A
Red, white or blushish
23
Q
________ is the line between alveolar mucosa and attached gingiva
A
Mucogingival junction
24
Q
3 types if glands
A
- Parotid
- Submandibular
- Sublingual
25
Only produces 25% of total resting salivary
volume
1. Parotid
2. Submandibular
3. Sublingual
Parotid
26
Secrete a thin, watery serous secretion
1. Parotid
2. Submandibular
3. Sublingual
Parotid
27
What is the largest of all glands
1. Parotid
2. Submandibular
3. Sublingual
Parotid
28
Parotid gland =
A) Stenson’s duct
B) Whartons duct
C) Bartholins duct
Stenson’s duct
29
Produces 60-65% of resting saliva
1. Parotid
2. Submandibular
3. Sublingual
Submandibular
30
Mixed gland – serous and mucous
1. Parotid
2. Submandibular
3. Sublingual
Submandibular
31
Duct opens in sublingual caruncle at the
base of the lingual frenum in floor of mouth
1. Parotid
2. Submandibular
3. Sublingual
Submandibular
32
Smallest of the 3 pairs of glands
1. Parotid
2. Submandibular
3. Sublingual
Sublingual
33
Produces 10% of saliva
1. Parotid
2. Submandibular
3. Sublingual
Sublingual
34
Each tooth has a ______ & a _______ portion.
Crown & root
35
The crown is covered by
Enamel
36
The root is covered with
Cementum
37
The crown and root are joined at the
CEJ - Cementoenamel junction
38
the whole crown of the tooth that is covered by enamel (regardless of whether it is erupted)
A) anatomical crown
B) clinical crown
Anatomical crown
39
the part of the crown that is visible above the gingiva.
A) anatomical crown
B) clinical crown
Clinical crown
40
The line formed by the junction of the cementumand the enamel is called the
Cervical line or CEJ
41
_________ of a tooth is the moving of that tooth through its surrounding tissues so that the clinical crown gradually appears longer.
Eruption
42
division of a root into 2 segments
Bifurcation
43
division of a root into 3 segments
Trifurcation
44
Between the roots
Furcal region
45
The portion of the jaw that supports
the teeth is called the ______
Alveolar process
46
The bony socket in which the tooth fits
is called the
Alveolus
47
What are the 4 tooth tissues
1. Enamel
2. Dentin
3. Cementum
4. Dental pulp (soft tissue)
48
The outer surface of the anatomic crown is formed by
Enamel
49
Hardest tissue in the human body
Enamel
50
Forms the main portion or body of the tooth
Dentin
51
Underneath enamel and cementum
Dentin
52
Dentin in capable of adding to itself, creating
Secondary dentin
53
Covers the root in a non perfect layer
Cementum
54
Main function: to provide a medium for
attachment of the tooth to the alveolar
bone
A) cementum
B) enamel
C) pulp
D) dentin
Cementum
55
T/F: Cementum is thin at cervical line, thicker at apex
True
56
__________is the union of cementum and dentin
Dentinocementum junction
57
Cells that produce cementum are called
cementoblasts
58
2 types of cementum
1. Acellular
2. Cellular
59
Housed in center of tooth
Pulp
60
Nourishing, sensory, dentin-reparative
system of tooth
Pulp
61
dentin forming cells that surround pulp
Odontoblasts
62
The chief function of odontoblasts is to
lay down primary, secondary, and
reparative dentin
63
2 divisions of pulp
1. Pulp chamber
2. Pulp canals
64
pulp chamber + pulp canals =
Pulp cavity
65
4 types of teety
1. Incisors
2. Canines
3. Premolars
4. Molars
66
The 3 basic food processing functions of
the teeth are
1. cutting
2. holding / grasping
3. grinding
67
How many incisors are there
8 - 4 top, 4 bottom.
68
Incisors are designed to
Cut
69
How many canines are there
4 - 2 top, 2 bottom
70
Canines are designed to
Hold, grasp or tear
71
are the longest teeth in the human dentition
Canines
72
They are some of the best anchored teeth because they have the longest roots
Canines
73
_________ canines have the longest roots of the entire dentition
Maxillary
74
How many pre molars
8 - 4 top, 4 bottom.
75
Pre molars are designed to
Hold and grind food
76
How many molars
12- 6 on top, 6 on bottom
77
Molars are designed to
Chew or grind food
78
faces the tongue (surface)
Lingual
79
faces the cheek (surface)
Facial (buccal or labial)
80
2 types of proximal surfaces
1. Mesial
2. Distal
81
biting/chewing surfaces of posterior teeth
Occlusal
82
biting/chewing surfaces of anterior teeth
Incisal
83
Lines called ____________ form when these lobes fuse together
developmental grooves
84
Anterior teeth have ______ facial lobes & ______ lingual lobes.
3 facial, 1 lingual
85
Max premolars have ______ facial lobes & ______ lingual lobes.
3 facial lobes, 1 lingual lobe
86
MAX 1st molars have ______ facial lobes & ______ lingual lobes. And can have an extra lingual cusp.
2 facial lobes, 2 lingual lobes and can have 1 extra lingual lobe
87
T/F: The lingual cusp of the mand 1st premolars are smaller than max pre molars
True
88
MAND 1st premolars have ______ facial lobes & _______ lingual lobes.
3 facial lobes, 1 lingual lobe
89
MAND 1st molars have ______ facial lobes & ______ lingual lobes.
3 facial lobes, 2 lingual lobes
90
Max 2nd molars have ______ facial lobes & ______ lingual lobes.
2 facial lobes and 2 lingual lobes
91
T/F: Max 2nd molars are smaller in proportion to max 1st molar
True
92
Extra cusp
Carabelli
93
Tubercles
94
small elevations of enamel on some portion of the crown of a tooth
Tubercles
95
fossa
96
lingual fossa
97
cingulum
98
depression of concavity on a tooth
Fossa
99
Lingual lobr of maxillary anterior teeth
cingulum
100
small pinpoint hole anywhere in the enamel
Pits
101
maginal ridge
102
transverse ridge
103
Developmental groove
104
Junction of 2 surfaces
Line angle
105
point where 3 surfaces meet
Point angle
106
At about ______ weeks in utero the tongue starts to develop
4½
107
Philtrum
108
Rugae
109
incisive papilla
110
torus
111
Fovea palatine
112
Posterior pillar / palatopharngeal
113
Anterior pillar / palatoglossal
114
Fauces
115
Sublingial caruncle
116
Sublingual fold
117
Frimbiated fold
118
circumvallate papillae
119
filiform papillae
120
fungiform papillae
121
Foliate papillae
122
Suplimental groove
123
concavities
124
triangular ridge
125
Transverse ridge
126
fissure
127
V-shaped row facing posteriorly of
circular raised elevations
Divides Posterior 1/3 and ant 2/3
a) circumvallate
b) Filiform
c) Fungiform
d) Foliate
Circumvallate
128
Anterior 2/3 of tongue,
Tiny, round, red, raised, spots
a) circumvallate
b) Filiform
c) Fungiform
d) Foliate
Fungiform
129
anterior 2/3 of tongue
Slender, threadlike, pointed projections
No taste buds
Tactile sensation
a) circumvallate
b) Filiform
c) Fungiform
d) Foliate
Filiform
130
Posterior 1/3 of tongue and on lateral (side) surfaces, close to vallate papillae
Few taste buds, not well developed
a) circumvallate
b) Filiform
c) Fungiform
d) Foliate
Foliate
131
Functions of the teeth
Protect the oral cavity
Chew food
Aid in digestive system
Communication
132
the general arrangement of
teeth
Dentition
133
How many primary teeth
20 deciduous or
“baby” teeth
134
How many teeth in the secondary dentition
32 permanent teeth
135
comprises some permanent teeth and some deciduous teeth
Mixed dentition
136
A primary quadrant has how many teeth
5
137
Succedaneous Teeth
refers to the permanent teeth which
succeed or replace the deciduous
(primary) teeth
138
Nonsuccedaneous Teeth
refers to the teeth which do not succeed
or replace any deciduous teeth
Ex: the permanent molars all 6’s,7’s,8’s
139
a dentition which contains both primary/ deciduous and
secondary/ permanent teeth
Mixed dentition
140
soft tissue that develops into a tooth
Tooth germ / tooth buds
141
tooth buds begin to grow
during 6th week of fetal life
142
early tooth socket
Crypt
143
During the 6th week of fetal life _______ & _______ begin to form followed by ______.
Dentin and enamel followed by cementum
144
Secondary dentin is produced _____ root formation or completion
a) before
b) after
after
145
Primary teeth begin to calcify by the ____ or ____ month of fetal life
4th or 5th month of fetal life
146
hardening of tooth tissues by the
deposition of mineral salts
Calcification
147
Each tooth begins to develop from 4 or more growth centres
These centres grow out from the tooth germ and are known as
Deveopmental lobes
148
The fusion of lobes is called
COALESCENCE
149
The junction that forms the union of lobes is marked by lines on the tooth called
DEVELOPMENTAL
GROOVES
150
Maxillary premolars have ____ facial lobes and __ lingual lobes
3 facial lobes and 1 lingual
151
_____facial lobes form one high buccal cusp
3
152
The lingual cusp of the mandibular 1st premolars are ______ than the maxillary 1st premolars
a) smaller
b) larger
Smaller
153
Mandibular 2nd premolars are special because they can have ____ or ______ cusps
2 or 3 cusps
154
2 cusp varieties of mandibular 2nd premolars
"U", "H", & "C"
155
3 cusp varieties of mandibular 2nd premolars
"Y"
156
When do 1st molars erupt
14-18 months
157
When do canines erupt
17-23 months
158
When do second molars erupt
23-31 months
159
Which arch starts to erupt first?
Mandibular
160
T/F: Teeth erupt in pairs
True
161
T:F: Teeth erupt earlier in girls than boys
True
162
The first teeth to appear in the mouth are usually the
mandibular central incisors
163
The teeth that usually erupt second
maxillary central incisors
164
Which teeth erupt 3rd
Mand lateral incisors followed by Max lateral incisors
165
As the teeth erupt and meet their opposing tooth in the opposite arch, they form what is known as the
Oclusal plane
166
When are the permanent 1st molars erupted
6-7 years
167
T/F: When the first permanent molar erupts, the period of primary
dentition ends
TRUE
168
At what age does mixed dentitions start
age 6
169
