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Dental Anatomy Vocab 3
PCD test 1
22
Dentistry
Graduate
08/11/2013

Additional Dentistry Flashcards

 


 

Cards

Term
name the horizontal and vertical thirds of the tooth
Definition

Horizontal

  • occlusal third (posterior teeth)
  • incisal third (anterior teeth)
  • middle third
  • cervical third; gingival third

Vertical

  • mesical third
  • middle third
  • distal third
Term
What is the mid-root axis line = long axis
Definition
An imaginary line that splits the root in half (mesiodistally or faciolingually
Term
What are embrasure spaces (embrasures)
Definition
present when 2 adjacent teeth touch
Term
What are the 4 embrasure spaces
Definition
  1. Facial; buccal; labial embrasure
  2. Lingual embrasure- larger than facial embrasure
  3. Occusal or incisal embrasure (often quite small)
  4. Cervical embrasure=interproximal space (filled with gingiva)=gingival embrasure
Term
What cells create enamel
Definition
ameloblast
Term
what cells make cementum
Definition
cementoblast
Term
What cells are at the edge of the pulp, making dentin
Definition
odontoblast
Term
What are the functions of the pulp
Definition
  • Is formative-odontoblasts
  • is sensory-nerve fibers
  • is nutritive-blood vessels
  • is protective-creates new dentin as needed
Term
What makes up the pulp cavity
Definition

pulp chamber

pulp canal

pulp horn(s)

Term
What is the hole at the apex of the root (where blood enters/exits)
Definition
Apical foramen
Term
The CEJ separates what?
Definition
the anatomic crown from anatomic root
Term
What is the apex
Definition
the root tip
Term
What is the space on multirooted teeth where root base divides into separate roots?
Definition

furcal area/region=furcation; interradicular space

 

-bifurcation

-trifurcation

Term
What is abnormal formation/twisted crown and root?
Definition
dilacerations
Term
How lobes form anterior teeth?
Definition
four lobes- three facial and one lingual
Term
How many lobes form premolars?
Definition
3 facial lobes and one lobe per lingual cusp
Term
How many lobes form molars?
Definition
one lobe per major cusp
Term
What is the tooth with the longest crown
Definition
mandibular canine
Term
longest tooth overall
Definition
maxillary canine
Term
widest tooth mesiodistally
Definition
mandibular first molar
Term
narrowest tooth mesiodistally
Definition
mandibular central incisor
Term
Widest tooth buccolingually
Definition
maxillary first molar
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