Permanent Dentition and Overview of Comparative Dental Anatomy Lecture

Question 1

Name the steps of naming the angles of teeth

Answer 1

1. Start with position i.e. mesial or distal
2. Then labial/buccal or lingual/palatal
3. Then incised or occlusal

e.g. distolabioincisal or disto-bucco-occlusal

Question 2

What are the roots of the tooth made of

Answer 2

dentin and cementum

Question 3

Is pulp bigger in permanent or deciduous teeth

Answer 3

bigger in deciduous

Question 4

What is the marginal ridge of the tooth

Answer 4

The strip of enamel on the lingual side of the anterior teeth that form a V shape
On posterior teeth its the mesial and distal strips of enamel on the occlusal surface

Question 5

Point out the cervical, middle and apical regions of the crown and root of a tooth

Answer 5

Cervical = top of root, bottom of crown
Middle = middle
Apical = top of crown, bottom of root

Question 6

What is a cusp tip

Answer 6

major elevations on the masticatory surface of posterior teeth and canines

Question 7

Name the 4 cusp tips found posterior teeth

Answer 7

Distolingual
Mesiolingual
Distobuccal
Mesiobuccal

Question 8

What is a ridge on a tooth

Answer 8

Linear elevation on a tooth crown

Question 9

What is the transverse ridge

Answer 9

Linear elevation crossing occlusal surface of any molar

Buccal –> Palatal

Question 10

What is the oblique ridge

Answer 10

Linear elevation diagonally crossing occlusal surface or maxillary molar
More developed than transverse, with lesions for strength

Question 11

Just a likkle note

Answer 11

teeth with one root can have 2 canals

Question 12

Why is one of the cusps on the 2nd maxillary molar higher than normal

Answer 12

It is further from where it needs to reach than other cusps