Quiz 2 Terminology

Question 1

Where is enamel located and how hard is it?

Answer 1

It is located on the anatomical crown of the tooth and it is composed of 95% hydroxyapatite (the hardest thing in our bodies)

Question 2

characteristics of cementum

Answer 2

located on the anatomical root, it is very thin (about the width of human hair)
weaker than enamel but stronger than bone (65% mineralized)

Question 3

characteristics of dentin

Answer 3

the inner layer of the tooth
appears yellow
stronger than cementum

Question 4

characteristics of pulp

Answer 4

soft nonmineralized CT
contains blood and nerve supply that comes through the apical foreman

Question 5

pulp chamber

Answer 5

the part of the pulp closest to the crown
“bulk of the pulp”

Question 6

pulp horns

Answer 6

exists in double-rooted teeth

Question 7

root canal

Answer 7

this is how nutrients get to the pulp chamber (blood/nerve supply)

Question 8

what is the definition of periodontium

Answer 8

supporting tissues(of teeth)

Question 9

what is the alveolar bone

Answer 9

the bone that surrounds and supports the teeth

Question 10

what is the gingiva and what are the two types?

Answer 10

gum tissue
covers alveolar bone
free and attached gingiva

Question 11

what is attached gingiva

Answer 11

gingiva firmly fixed to the bone

Question 12

what is free gingiva?

Answer 12

the gingiva not connected to bone
“a collar around the tooth”
sulcus/crevice should be 1-3mm

Question 13

Interproximal/ Interdental papilla

Answer 13

gingiva that fills spaces between teeth

Question 14

Periodontal Ligament (PDL)

Answer 14

connects bone to tooth, has to be seen on radiograph

Question 15

where is the facial surface of the tooth

Answer 15

on anterior teeth closest to the lips

Question 16

where is the buccal surface of a tooth

Answer 16

on the posterior teeth closest to the cheek

Question 17

where is the lingual surface of the tooth located

Answer 17

the surface closest to the tongue

Question 18

where is the occlusal surface of the tooth

Answer 18

the chewing surface
called incisal edge on anterior teeth

Question 19

where is the mesial surface located

Answer 19

the proximal surface closest to the midline

Question 20

where is the distal surface of the tooth located

Answer 20

the proximal surface further from the midline

Question 21

what is a line angle?

Answer 21

the junction of two surfaces

Question 22

how do you name a line angle

Answer 22

1. mesial
2. distal,facial, buccal or lingual
   3.occusal

Question 23

what is the cingulum

Answer 23

the buldge on the lingual of anterior teeth

Question 24

where is the apex of the tooth

Answer 24

the tip of the root

Question 25

where is the apical foreman

Answer 25

it is the opening in the apex that allows nerves and blood vessels to go through

Question 26

where is the cervix/ cervical line of the tooth

Answer 26

the neck of the took where the root and crown meet

Question 27

where is the root trunk

Answer 27

the bulk of the root before the roots separate (like a tree trunk and its branches)

Question 28

what is furcation

Answer 28

where the roots split in teeth with two or more roots

Question 29

what are contact areas

Answer 29

where two adjacent teeth meet

Question 30

what is a diastema

Answer 30

a gap or space between teeth

Question 31

what is the embrasure space?

Answer 31

the space under the contact area between teeth that is not filled with interproximal papilla

Question 32

what is the interproximal space

Answer 32

space between teeth