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Dt 2 Tissue of oral cavity Flashcards

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1
Q

Eruption

A

The movement of the teeth into the working position

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2
Q
  1. Exfoliate
A

I. The normal process of shedding the primary teeth

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3
Q
  1. Succedaneous
A

Permanent teeth that replace primary teeth

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4
Q
  1. Supernumerary
A

H. Additional teeth, usually small and poorly developed

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5
Q
  1. Hyperdontia
A

B. The condition of having one or more supernumerary teeth

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6
Q
  1. Anodontia
A

L. The absence of some or all teeth because the teeth had never developed

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7
Q
  1. Congenitally missing
A

J. When one or more teeth do not develop

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8
Q
  1. Edentulous
A

A. Having no teeth

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9
Q
  1. Impacted
A

Unerupted tooth beyond the time at which it should erupt

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10
Q

Eruption of primary teeth starts @ and ends @

A

starts 6 months and ends 3 years

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11
Q

Exfoliation of primary teeth starts @ __ and ends @____

A

starts @ 6 and ends @ 12 year

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12
Q

a person has both primary and secondary dentition.

A

mixed dentition.

age 6 and 12 years,

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13
Q

. Eruption of secondary teeth starts__and ends @___

A

starts 6 years and ends @ 21 years (wisdom teeth)

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14
Q

what is a retained primary tooth?

A

a primary tooth that hasn’t exfoliated

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15
Q

Teeth are either__ rooted or __ rooted.

A

single rooted or multi rooted.

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16
Q

These roots sit in ______within the alveolar process

A

alveolar socket

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17
Q

“gums”

A

gingival tissue surrounds each tooth

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18
Q

Primary Dentition

3 classes

A

12 anterior
8 posterior
0 premolars
8 molars

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19
Q

Secondary Dentition

4 classes

A

12 anterior
20 posterior
8 premolar
12 molar

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20
Q

Tooth Formation begins In __

A

utero

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21
Q

pimitive mouth froms

A

 3 weeks

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22
Q

Tongue, jaws, and palate develop

A

3-5 weeks

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23
Q

primary tooth bud develop

A

5 weeks***

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24
Q

Secondary tooth buds develop

A

 6 weeks

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25
all buds of Primary present
8 weeks
26
tooth buds of permenant teeth present
 20 weeks
27
The tooth cells develop knob shaped structures
Bud
28
Cap
increase cell number and become more “cap like”
29
Bell
Cells= specialized (enamel and dentin) | basic form/shape of tooth is developed
30
•Crown
Crown Tissues calcify/harden
31
• Does not occur until the crown has completely formed
Root
32
4 parts of a tooth
``` 1. Crown • Clinical -anatomical 2. Apex 3. Cervix 4. Root ```
33
clinical crown.
the portion of the tooth that is visible in the oral cavity
34
Enamel-
Hardest material in the body • white protective surface Covers the crown protects the dentin
35
Dentin
Makes up the bulk of the tooth • Protects the pulp by forming the pulp chamber • In the crown area- pulp chamber • In the root- root canal
36
Cementum-
Hard, bone like covering of the root attachment for periodontal ligament • Helps to hold the tooth in position
37
Pulp-
• soft tissue in cavity | not calcified
38
apical foramen
opening of the pulp canal, where the nerve supply enters and leaves the tooth
39
The ANATOMICAL CROWN
part of the tooth that is covered | with enamel
40
CLINICAL CROWN
part of the tooth which is visible in the mouth.
41
CERVIX
neck of the tooth | the narrow area where the enamel of crown joins cementum of the root.
42
CEJ
Cemento-Enamel Junction line around the perimeter of the tooth where the enamel covering the crown crown-> meets cementum covering the root
43
ROOT
covered with Cementum | help to hold the tooth in its bony socket
44
APEX
APEX is the tip of the | root of the tooth.
45
APICAL | FORAMEN
the nerve and blood supply enter and leave the tooth
46
interproximal space embrasure
Triangular area between adjacent tooth surfaces (usually filled with interdental papilla) aka “open contact”
47
contact area
Interproximal areas that touch adjacent teeth in the same arch. mesial+ distal surfaces =contact in the same areas
48
Diastema
A space between two teeth (tooth gap)
49
Cingulum
Raised, rounded area on the cervical third of the lingual surface of anterior teeth
50
Marginal Ridges
: Raised, rounded border elevations on on the mesial and distal aspects of the lingual surfaces of anterior teeth. Named according to their relationship to the midline- eg “distal marginal ridge, or mesial marginal ridg
51
Lingual fossa
Wide, shallow depression on the lingual surfaces of anterior teeth. Above the Cingulum and between the mesial and distal marginal ridges
52
groove
serves as a spillway, allowing food to escape during chewing
53
Fissures and Pits
A Fissure on groove on the occlusal surface caused by imperfect joining of the lobes during tooth formation. prone to tooth decay. Pits -caused by the crossing of 2 fissures. found on anterior teeth and buccal surfaces of posterior teeth.
54
The purpose of a sealant is
prevent occlusal decay
55
Cusp
Major conical elevation on the masticatory(chewing) surfaces of canine and posterior teeth
56
Cusp of Carabelli
bump on first molar lingual maxillary surface- in Permanent Dentition primary dentition = Cusp of Carabelli is located on the maxillary 2nd molar
57
Distal cusp
located on Mandibular 1st Molars | between the Distobuccal and Distolingual cusps
58
Furcation
Area between two or more root branches 2 Roots = Bifurcation 3 Roots = Trifurcation
59
Mamelon
3 rounded bumps on the incisal area on newly erupted central and lateral incisors in PERMANENT DENTITION.
60
2 functions of the periodontium are to:
1. Surround the teeth | 2. support the teeth
61
The 4 parts of the periodontium include the:
1. Gingiva 2. Periodontal Ligament (PDL) 3. Cementum 4. Alveolar Bone
62
his part is also known as the “Gingival Unit”
Gingiva
63
These parts are collectively known as the “Attachment Apparatus”
Periodontal Ligament (PDL) Cementum Alveolar Bone
64
There are 3 types of gingiva. This includes
Marginal/ unattached/ free Attached Interdental
65
sulcus
a v-shaped on marginal gingiva | measured by periodontal probing.
66
. The ____is a hard tissue that covers the root of the tooth, and joins the enamel at the ______.
``` Cementum cementoenamel junction (CEJ) ```
67
cementum assists the PDL in ______within the alveolar socket.
anchoring and suspending the tooth
68
The periodontal ligament (PDL
surrounds the root suspend the tooth it acts like a shock absorber)
69
. The______ is the portion of the jaws that forms and supports the tooth sockets
alveolar bone
70
What are the 5 boundaries of the oral cavity
* Anterior * Posterior * Superior * Lateral * Inferior
71
The entire oral cavity is lined with_____. This is also called _____
mucous membrane tissue | oral mucosa.
72
The 3 categories of tissues of the oral cavity are:
masticatory 2. lining 3. specialized
73
Buccal, labial, and alveolar mucosa are all within which category of tissue?
Lining mucosa.
74
How many divisions are there in the oral cavity
2 Oral vestibule: Outside Oral cavity proper: Inside
75
The landmarks of the oral vestibule are:
``` Buccal Mucosa • Parotid Papilla • Labial Mucosa • Alveolar Mucosa • Mucogingival Junction • Height/depth of Vestibule • Frenum/Frena • Gingiva ```
76
What are the landmarks of the oral cavity proper?
o Hard- incisive papilla, palatal rugae, median palatine raphe • Soft- uvula, arches/pillars, tonsils * Tongue * Floor of the mouth * Lingual frenum, sublingual caruncles, plica * Maxillary tuberosity * Retromolar pad
77
.Where is the incisive papilla located?
• Located behind the maxillary central incisor
78
• Palatal rugae
o Irregular ridges or folds of masticatory mucosa
79
• Median palatine raphae
o Ridged union of tissue extending from incisive papilla to uvula
80
What are the two supporting arches of the soft palate
Anterior Palatoglossal arch • Anterior arch soft palate lateral aspects of the tongue Posterior Palatopharyngeal arch • Posterior supporting arch nearest the pharyn
81
The tongue functions to:
* Help us to Speak * Position food while eating * Taste and Feel * Swallow * Cleanse the oral cavity
82
.What are the surfaces of the tongue?
• Dorsal, lateral, ventral
83
What is the gag reflex?
• Protective mechanism
84
sublingual caruncles
2 small, raised folds of tissue - either side of the lingual frenum.
85
plica
folds of tissue at bottom of tongue that connects tongue to bottom of tongue.
86
There are 3 pairs of major salivary glands
parotid inside the cheeks. Largest) The submandibular gland botom of mouth. Wharton’s duct smallest, sublingual gland, and it is located on the floor of the mouth

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