chapter 1

Question 1

what is ala

Answer 1

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

Question 2

where is the philtrum located ?

Answer 2

center external surface of the upper lip

Question 3

where is symphysis located

Answer 3

in the center of the mandible forms the chin.

Question 4

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

Answer 4

1. Vestibule.
2. Oral Cavity Proper

Question 5

what is the vestibule area

Answer 5

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

Question 6

where does the oral cavity begin and end

Answer 6

begins at the teeth and extends to the palatine tonsils.

Question 7

what is the frenum

Answer 7

is a narrow band of tissue that connects two
structures.

Question 8

what is the labial frenum

Answer 8

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

Question 9

what is the buccal frenum

Answer 9

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

Question 10

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

Answer 10

Incisive papilla

Question 11

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

Answer 11

Palatal rugae

Question 12

runs posteriorly from the incisive papilla at the midline.

Answer 12

Palatine raphe

Question 13

Palatal glands

Answer 13

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

Question 14

the movable softer part at the back of the palate.

Answer 14

The Soft Palate

Question 15

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

Answer 15

the palatoglossal arch.

Question 16

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

Answer 16

palatopharyngeal arch.

Question 17

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

Answer 17

Circumvallate

Question 18

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

Answer 18

Filiform

Question 19

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

Answer 19

Fungiform

Question 20

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

Answer 20

Foliate

Question 21

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

Answer 21

crown.

Question 22

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.

Answer 22

Parotid gland

Question 23

: 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.

Answer 23

Submandibular salivary gland

Question 24

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.

Answer 24

3. Sublingual salivary gland

Question 25

The permanent dentition is divided into four types of teeth

Answer 25

1. Incisors 2. Canines or cuspids 3. Premolars 4. Molars

Question 26

how teeth are arranged into

Answer 26

Arches Quadrants Sextants

Question 27

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

Answer 27

quadrants.

Question 28

There are three tooth numbering systems

Answer 28

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

Question 29

The teeth are made up of four main parts:

Answer 29

Enamel Dentin Pulp Cementum

Question 30

Hard white covering over the tooth

Answer 30

Enamel

Question 31

Main tissue of tooth that surrounds the pulp

Answer 31

Dentin

Question 32

Soft tissue found in the center of tooth

Answer 32

pulp

Question 33

Rough tissue that covers the root of tooth

Answer 33

Cementum

Question 34

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

Answer 34

Contours Contacts Embrasures

Question 35

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

Answer 35

Periodontal Ligament Alveolar Bone Gingiva Cementum

Question 36

Attachment apparatus Gingival unit

Answer 36

The periodontium is divided into 2 major units:

Question 37

are responsible for the formation of bone.

Answer 37

Osteoblasts

Question 38

cells that destroy or cause the resorption of bone tissue

Answer 38

Osteoclasts

Question 39

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

Answer 39

cementoenamel junction or cervical line

Question 40

means that the tooth is divided into two roots

Answer 40

Bifurcation

Question 41

means that the tooth is divided into three roots.

Answer 41

- Trifurcation

Question 42

The tapered end of each root tip is known as the

Answer 42

Apex

Question 43

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

Answer 43

Enamel:

Question 44

enamal is formed by ?

Answer 44

ameloblasts

Question 45

what is the dentin covered by

Answer 45

enamel on the crown and by cementum on the root.

Question 46

Dentin is more yellow in the primary teeth.

Answer 46

true or false

Question 47

Dentin is formed by

Answer 47

odontoblasts

Question 48

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

Answer 48

Tertiary

Question 49

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

Answer 49

Secondary

Question 50

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

Answer 50

Primary

Question 51

The pulp is formed from

Answer 51

Fibroblasts

Question 52

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

Answer 52

Pulp chamber.

Question 53

What happens to the pulp as we age?

Answer 53

it shrinks

Question 54

covers the root of the tooth

Answer 54

Cementum

Question 55

The cementum is formed from

Answer 55

Cementoblasts

Question 56

odontogenesis.

Answer 56

The process of tooth formation

Question 57

This process can be divided into three primary periods

Answer 57

. Growth period . Calcification period Eruption period

Question 58

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

Answer 58

Bud stage

Question 59

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

Answer 59

. Cap stage

Question 60

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

Answer 60

bell stage

Question 61

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

Answer 61

Eruption

Question 62

Permanent teeth that replace primary teeth is called

Answer 62

Succedaneous teeth.

Question 63

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

Answer 63

Exfoliation or Shedding

Question 64

What is Intraoral scanning?

Answer 64

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

Question 65

How do intraoral scanners work

Answer 65

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

Question 66

(CAD)

Answer 66

computer aided design

Question 67

(CAM)

Answer 67

computer aided manufacturing