Dentition ID Systems

Question 1

Heterodont

Answer 1

dentition made up of different types of teeth. examples/ humans, fish

Question 2

Homodont

Answer 2

dentition made up of one type of tooth with the same function. examples/ reptiles, alligators

Question 3

Haplodont

Answer 3

dentition made up of molar teeth with simple conical crowns and no tubercles, ridges, or cusps

Question 4

Monophyodont

Answer 4

1 set of teeth

Question 5

Diphyodont

Answer 5

having 2 sets of teeth (like us humans)

Question 6

Polyphyodont

Answer 6

having more than 2 sets of teeth. examples/ reptiles, sharks, snakes, elephants

Question 7

Which type of teeth is not seen in primary dentition

Answer 7

Premolars

Question 8

Mixed dentition ends when…

Answer 8

the last deciduous tooth is lost

Question 9

succedaneous teeth

Answer 9

permanent teeth that replace/succeed deciduous (primary) teeth

Question 10

Nonsuccedaneous teeth

Answer 10

permanent MOLARS that do not replace/succeed deciduous (primary) teeth

Question 11

How many teeth are in each arch (maxillary and mandibular)

Answer 11

Primary: 10 in each arch
Permanent: 16 in each arch

Question 12

How many teeth are in each arch (maxillary and mandibular)

Answer 12

Primary: 10 in each arch
Permanent: 16 in each arch

Question 13

Each permanent dentition quadrant has what teeth

Answer 13

Central incisor
Lateral incisor
Canine
First and second premolar
First, second, and third molar

Question 14

Each primary dentition quadrant has what type of teeth

Answer 14

two incisors (central and lateral)
canine
first and second molar

Question 15

What is the dental formula for each dentition (primary and permanent)?

Answer 15

Primary: 2I IC 2M
Permanent: 2I 1C 2PM 3M

Question 16

How would you name/code tooth number 8?

Answer 16

Permanent (dentition) maxillary (arch) right (quadrant) central (type) incisor (class)

Question 17

List the 6 sextants

Answer 17

-Upper right posterior
-Maxillary anterior
-Upper left posterior
-Lower right posterior
-Mandibular anterior
-Lower left posterior

Question 18

Explain the Universal System of numbering

Answer 18

The numbering system for teeth that is primarily used in the US. Starting at the upper right third molar, then dropping down to mandibular left third molar and continuing to mandibular right third molar.
Permanent: numbered 1-32
Primary: lettered A-T

Question 19

Explain Palmer Notation numbering system

Answer 19

Primarily used in the UK and in orthodontics, palmer notation uses symbols and numbers with the quadrant bracket symboled with a “half box”. Starting at the central incisor, permanent teeth are numbered 1-8. Primary are lettered A-E

Question 20

Explaining the Federation Dentaire Internationale (FDI) System

Answer 20

Primarily used in countries across Europe, the FDI system uses 2 digit numbers, with the first number representing the quadrant (permanent 1-4, primary 5-8 starting at maxillary right quadrant) and the second number representing the tooth (permanent 1-8, primary 1-5, starting at the central incisor of that quadrant)