Classification of Malocclusion

Question 1

When teeth are not erupted to the same level.

Answer 1

Infraclusion

Question 2

Teeth are over erupted.

Answer 2

Supraclusion

Question 3

Irregular arrangement of the teeth from lack of space.

Answer 3

Imbrications

Question 4

When teeth switch places.

Ex: The cuspid erupts in place of the lateral incisor.

Answer 4

Transposition

Question 5

The most common supernumerary.

Answer 5

Mesiodens - between the maxillary centrals.

Question 6

When a tooth has one root and two pulp chambers.

Answer 6

Gemination

Question 7

When a tooth has two root canals, and two pulp chambers.

Answer 7

Fusion

Question 8

Class in which the mandible move forward on closure.

Answer 8

Pseudo Class III

Question 9

When the maxillary teeth occlude lingually to the mandibulars.

Answer 9

Crossbite

Question 10

Vertical space between the teeth.

Answer 10

Open bite

Question 11

Overlap in the vertical direction.

Answer 11

Overbite

Question 12

Overlap in the horizontal direction.

Answer 12

Overjet

Question 13

In the Angle’s classification, which teeth do we consider fixed?

Answer 13

Maxillary first permanent molars.

Question 14

MB cusp of the maxillary first molar occludes in the buccal groove of the mandibular first molar.

Answer 14

Class I malocclusion

Question 15

Canines in Class I malocclusion.

Answer 15

Maxillary canine is half a tooth distal to the mandibular canine.

Question 16

Class II molar relationship with labially inclined maxillary incisors.

Answer 16

Class II DIvison 1

Question 17

Class II molar relationship where the maxillary centrals are retruded, but the maxillary laterals are labially inclined.

Answer 17

Class II Division 2

Question 18

This angle’s classification often has lingually inclined mandibular incisors.

Answer 18

Class II Division 2

Question 19

Angle where the lower incisors are edge to edge or labial to the uppers.

Answer 19

Class III

Question 20

Angle classification where the mandibular dentition erupts (develops) MESIAL to the maxillary.

Answer 20

Class III

Question 21

Angle’s classification with a concave profile..

Answer 21

Class III