Quiz 2 Terminology Flashcards
Where is enamel located and how hard is it?
It is located on the anatomical crown of the tooth and it is composed of 95% hydroxyapatite (the hardest thing in our bodies)
characteristics of cementum
located on the anatomical root, it is very thin (about the width of human hair)
weaker than enamel but stronger than bone (65% mineralized)
characteristics of dentin
the inner layer of the tooth
appears yellow
stronger than cementum
characteristics of pulp
soft nonmineralized CT
contains blood and nerve supply that comes through the apical foreman
pulp chamber
the part of the pulp closest to the crown
“bulk of the pulp”
pulp horns
exists in double-rooted teeth
root canal
this is how nutrients get to the pulp chamber (blood/nerve supply)
what is the definition of periodontium
supporting tissues(of teeth)
what is the alveolar bone
the bone that surrounds and supports the teeth
what is the gingiva and what are the two types?
gum tissue
covers alveolar bone
free and attached gingiva
what is attached gingiva
gingiva firmly fixed to the bone
what is free gingiva?
the gingiva not connected to bone
“a collar around the tooth”
sulcus/crevice should be 1-3mm
Interproximal/ Interdental papilla
gingiva that fills spaces between teeth
Periodontal Ligament (PDL)
connects bone to tooth, has to be seen on radiograph
where is the facial surface of the tooth
on anterior teeth closest to the lips
where is the buccal surface of a tooth
on the posterior teeth closest to the cheek
where is the lingual surface of the tooth located
the surface closest to the tongue
where is the occlusal surface of the tooth
the chewing surface
called incisal edge on anterior teeth
where is the mesial surface located
the proximal surface closest to the midline
where is the distal surface of the tooth located
the proximal surface further from the midline
what is a line angle?
the junction of two surfaces
how do you name a line angle
- mesial
- distal,facial, buccal or lingual
3.occusal
what is the cingulum
the buldge on the lingual of anterior teeth
where is the apex of the tooth
the tip of the root
where is the apical foreman
it is the opening in the apex that allows nerves and blood vessels to go through
where is the cervix/ cervical line of the tooth
the neck of the took
where the root and crown meet
where is the root trunk
the bulk of the root before the roots separate (like a tree trunk and its branches)
what is furcation
where the roots split in teeth with two or more roots
what are contact areas
where two adjacent teeth meet
what is a diastema
a gap or space between teeth
what is the embrasure space?
the space under the contact area between teeth that is not filled with interproximal papilla
what is the interproximal space
space between teeth
