Teeth

Question 1

Mammals and many other vertebrates are ________– “different teeth”

Answer 1

heterodont

Question 2

Mammals and some other vertebrates are also described as ____

Answer 2

“thecodont”

Question 3

Human teeth may be (1) _______ (deciduous, milk, temporary) – seen in children, or (2) _______ (adult, permanent)

Answer 3

primary; secondary

Question 4

There are 3 stages of human dentition:

Answer 4

1. Primary dentition stage: only primary teeth are present
2. Mixed or transitional dentition stage: starts when first permanent tooth appears, usually at age 5 or 6
3. Permanent dentition stage: occurs after last primary tooth is shed (exfoliation), usually at age 10 to 12

Question 5

3 macroscopic parts of a tooth:

Answer 5

• Crown
• Neck
• Root(s)

Question 6

gum = ______

Answer 6

gingiva

Question 7

teeth are classified by their _____ and ______

Answer 7

morphology; function

Question 8

starts with appearance of first permanent molar at about 5 or 6 years and continues until last primary tooth is lost, usually at about age 10 12 years

Answer 8

mixed dentition stage

Question 9

Type and functions of teeth:
• Incisors =
• Canines =
• Premolars and molars =

Answer 9

incisors = cut
canines = hold, tear
premolars and molars = grinding

Question 10

_____ of a tooth is that part of a tooth which projects beyond gum (gum = gingiva)

Answer 10

crown

Question 11

the crown is covered with _____

Answer 11

enamel

Question 12

the ____ of a tooth is encircled by gingiva

Answer 12

neck

Question 13

true or false; both the neck and root of a tooth is covered by cementum

Answer 13

true

Question 14

the dentin is covered by ____ on the exposed parts, and covered by _____ on the parts in the alveolar process

Answer 14

enamel; cementum

Question 15

the pulp cavity forms _____ which forms _____

Answer 15

pulp; dentin

Question 16

Dental DNA is often used to study _____ ___

Answer 16

human evolution

Question 17

Each tooth root is contained within a bony socket (____) form joint called a _____

Answer 17

alveolus; gomphosis

Question 18

how many adult teeth are there in total?

Answer 18

32

Question 19

maxillary and mandibular dental arch are also called ____ _____

Answer 19

dental arcade

Question 20

true or false; right maxillary is quadrant 1, left maxillary is quadrant 2, left mandibular is quadrant 3, and right mandibular is quadrant 4

Answer 20

true

Question 21

true or false; Each tooth is numbered by using two
numbers: the individual tooth is first, then
the quadrant number is second

Answer 21

false; the quadrant number is first, then the individual tooth number is second

Question 22

3rd molar can also be called ___ ____ ____

Answer 22

18 year molar

Question 23

Dental formula

Answer 23

a numerical description of the number of teeth of

each type in each dental quadrant

Question 24

what is the ideal formula for an adult human with a complete dentition?

Answer 24

2123

Question 25

true or false; deciduous teeth have no premolars

Answer 25

true

Question 26

if paediatric age group is specified, what is the dental formula of a child?

Answer 26

212

Question 27

International numbering system for deciduous teeth:

Answer 27

right maxillary quadrant is 5, left maxillary quadrant is 6, left mandibular quadrant is 7, right mandibular quadrant is 8 (next slide)

Question 28

Order of deciduous dental

eruption from first to last is

Answer 28

1,2,4,3,5: medial incisor,
lateral incisor, 1 st molar,
canine, 2 nd molar;

Question 29

permanent teeth

that replace deciduous teeth

Answer 29

succedaneous teeth or successional teeth

Question 30

centred contact position of the occlusal surfaces of the mandibular teeth with occlusal surfaces of maxillary teeth

Answer 30

centric occlusion

Question 31

The point where two proximal surfaces abut (touch) each other is a ____ _____

Answer 31

contact point

Question 32

individuals with no teeth are said to be

Answer 32

edentulous