Tooth Morphology Flashcards
What is diphydonty ?
Having 2 generations of teeth -
- deciduous dentition
- permanent dentition
When is the deciduous dentition present ?
6 months to 2.5 years
When is the permanent dentition present ?
Between 6 and 21 years old
What is mixed dentition ?
When some teeth are deciduous teeth and some are permanent between the ages of 6 and 14
What is heterodonty ?
Having different teeth forms -
- incisiforme
- caniniforme
- molariforme
How many teeth are in the human deciduous dentition ?
20
How many teeth are in the human permanent dentition ?
32
Which permanent teeth have no deciduous predecessors ?
Permanent molars
What is the cervical margin ?
The neck of the tooth
Where the anatomical crown meets the anatomical root
What is the anatomical crown ?
The part of the tooth which is covered by enamel
What is the anatomical root ?
The part of the tooth covered by dental cement
What are the dental tissues ?
- enamel
- dentine
- pulp chamber
- cement
What are the periodontal tissues ?
- gingiva
- cement
- periodontal ligament
What is the labial surface of a tooth ?
Adjacent to the lips
Only for incisors and canines
What is the buccal surface of a tooth ?
Adjacent to the cheeks
Only for premolars and molars
What is the palatal surface of the teeth ?
Adjacent to the palate
Only for maxillary teeth
What is the lingual surface of the teeth ?
Adjacent to the tongue
Only for mandibular teeth
What is the mesial surface of the tooth ?
Closer to the midline
What is the distal surface of the tooth ?
Away from the midline
What is the occlusal surface of the teeth ?
The biting surface
How is a tooth named anatomically ?
1) deciduous/permanent
2) maxillary/ mandibular
3) first/second/third
4) incisor/canine/premolar/molar
5) left/right
What is a point angle ?
Where 3 surfaces meet
What is a line angle ?
Where 2 surfaces meet
