chapter 1 Flashcards

1
Q

what is ala

A

Ala is the winglike tip of the outer side of each nostril.

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2
Q

where is the philtrum located ?

A

center external surface of the upper lip

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3
Q

where is symphysis located

A

in the center of the mandible forms the chin.

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4
Q

what are of the two areas does the oral cavity consist of

A
  1. Vestibule.
  2. Oral Cavity Proper
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5
Q

what is the vestibule area

A

is the part of the mouth bounded anteriorly and laterally by the lips and the cheeks

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6
Q

where does the oral cavity begin and end

A

begins at the teeth and extends to the palatine tonsils.

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7
Q

what is the frenum

A

is a narrow band of tissue that connects two
structures.

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8
Q

what is the labial frenum

A

passes from the midline of the maxillary or mandibular arch to the midline of the inner surface of the lip

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9
Q

what is the buccal frenum

A

passes from the oral mucosa near the max and mand canine to the inner surface of the cheek

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10
Q

pear-shaped pad of tissue located behind the maxillary central incisors.

A

Incisive papilla

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11
Q

irregular ridges of masticatory mucosa extending laterally from the incisive papilla.

A

Palatal rugae

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12
Q

runs posteriorly from the incisive papilla at the midline.

A

Palatine raphe

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13
Q

Palatal glands

A

are numerous small glands that open onto the palatal mucosa as small pits.

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14
Q

the movable softer part at the back of the palate.

A

The Soft Palate

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15
Q

The anterior arch or pillar arch or
runs from the soft palate down to the lateral aspects of the tongue

A

the palatoglossal arch.

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16
Q

The posterior arch or pillar is the free posterior border of the soft palate

A

palatopharyngeal arch.

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17
Q

: largest papillae, posterior of the tongue- sense bitter taste.

A

Circumvallate

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18
Q

: smallest papillae, cover the entire surface of the tongue- do not sense taste.

A

Filiform

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19
Q

dark-red papillae on the middle, sides and anterior of the tongue-sense sweet, salty and sour.

A

Fungiform

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20
Q

located on the posterior lateral borders, easily seen if the tongue is grasped and extended with a gauze-sense sour taste.

A

Foliate

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21
Q

The portion of the tooth that is visible in the oral cavity is

A

crown.

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22
Q

is the largest of the three glands, produces 25% of the total volume of saliva and passes into the mouth via the parotid duct or Stensen’s duct.

A

Parotid gland

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23
Q

: this is about the size of a walnut and is the second largest. It produces about 60-65% of the total saliva and passes via the submandibular duct or Wharton’s duct.

A

Submandibular salivary gland

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24
Q

this is the smallest of the three and provides only 10% of the total saliva. It passes saliva through the sublingual duct or Bartholin’s duct.

A
  1. Sublingual salivary gland
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25
Q

The permanent dentition is divided into four types of teeth

A
  1. Incisors
  2. Canines or cuspids
  3. Premolars
  4. Molars
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26
Q

how teeth are arranged into

A

Arches
Quadrants
Sextants

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27
Q

When the maxillary and mandibular arches are each divided into halves, there are 4 sections, which are called

A

quadrants.

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28
Q

There are three tooth numbering systems

A

Universal/National Numbering System
International Standards (FDI)
Palmer Notation System

29
Q

The teeth are made up of four main parts:

A

Enamel
Dentin
Pulp
Cementum

30
Q

Hard white covering over the tooth

31
Q

Main tissue of tooth that surrounds the pulp

32
Q

Soft tissue found in the center of tooth

33
Q

Rough tissue that covers the root of tooth

34
Q

Anatomic features of the teeth help maintain their positions in the arch and protect the tissues during mastication (chewing). These features include

A

Contours
Contacts
Embrasures

35
Q

The periodontium is made up of a variety of tissues that provide anchorage, support, and protection for the teeth in the dental arches.

A

Periodontal Ligament
Alveolar Bone
Gingiva
Cementum

36
Q

Attachment apparatus
Gingival unit

A

The periodontium is divided into 2 major units:

37
Q

are responsible for the formation of bone.

A

Osteoblasts

38
Q

cells that destroy or cause the resorption of bone tissue

A

Osteoclasts

39
Q

Is the portion of the tooth that we can see in the oral cavity

A

cementoenamel junction or cervical line

40
Q

means that the tooth is divided into two roots

A

Bifurcation

41
Q

means that the tooth is divided into three roots.

A
  • Trifurcation
42
Q

The tapered end of each root tip is known as the

43
Q

covers the anatomic crown of the tooth, and is the hardest material in the body

44
Q

enamal is formed by ?

A

ameloblasts

45
Q

what is the dentin covered by

A

enamel on the crown and by cementum on the root.

46
Q

Dentin is more yellow in the primary teeth.

A

true or false

47
Q

Dentin is formed by

A

odontoblasts

48
Q

This is also known as the reparative dentin. It acts as a protective layers against irritation tries to protect the pulp.

49
Q

: begins after the tooth is erupted and continues to grow throughout the life of the tooth and wear and tear.

50
Q

is formed before the tooth is erupted and makes up the bulk of the tooth

51
Q

The pulp is formed from

A

Fibroblasts

52
Q

The part of the pulp that is in the crown portion of the tooth

A

Pulp chamber.

53
Q

What happens to the pulp as we age?

A

it shrinks

54
Q

covers the root of the tooth

55
Q

The cementum is formed from

A

Cementoblasts

56
Q

odontogenesis.

A

The process of tooth formation

57
Q

This process can be divided into three primary periods

A

. Growth period
. Calcification period
Eruption period

58
Q

:This is also known as initiation or the beginning stages of tooth development.

59
Q

The tooth bud begins to grow and is starting to take on the appearance of a cap.

A

. Cap stage

60
Q

Also called histodifferentiation. At this stage the enamel, dentin, and pulp are being formed.

A

bell stage

61
Q

It the movement of the tooth into its functioning place in the mouth. It starts when root formation begins

62
Q

Permanent teeth that replace primary teeth is called

A

Succedaneous teeth.

63
Q

Is the normal process by which the primary teeth are lost.

A

Exfoliation or Shedding

64
Q

What is Intraoral scanning?

A

Scanning in the mouth, of the teeth and surrounding structures using a device which projects a light source, usually laser or structured light, onto the dental arches to capture a direct optical and digital impression

65
Q

How do intraoral scanners work

A

An intraoral scanner consists of a handheld wand, a computer, and software
The small wand is connected to a computer that runs custom software that processes the digital data sensed by the device

66
Q

(CAD)

A

computer aided design

67
Q

(CAM)

A

computer aided manufacturing