Recognition of Malocclusion in the Mixed Dentition with Angle’s Class and Baume’s Method

Question 1

The mixed dentition occlusion is undergoing continual change due to…

Answer 1

(1) loss of primary teeth
(2) eruption of permanent teeth
(3) growth of the face

Question 2

The AP relations of the upper and lower permanent first molars 3/30 & 4/19 are described by the…

Answer 2

Angle Classification

Question 3

The AP relations of the second primary molars A/T & J/K are first described by…

Answer 3

Louis J. Baume

Question 4

If the permanent 1st molars are Class I, they will remain _________ or could become ___ in the permanent dentition

Answer 4

Class I
SI

Question 5

If the permanent 1st molars are Class II, they will remain _______ in the permanent dentition.

Answer 5

Class II

Question 6

If the permanent 1st molars are Class III, they will remain _______ in the permanent dentition

Answer 6

Class III

Question 7

The distal surfaces of the Upper and Lower Primary Second Molars are named…

Answer 7

Terminal Planes (TP)

Question 8

When the terminal planes of A&J are distal to the terminal planes of T&K, it is a ________ step (in the AP direction of Angle’s _________)

Answer 8

mesial
Class I and Class III

Question 9

When the terminal planes of A&J are mesial to the terminal planes of T&K, it is a ________ step (in the AP direction of Angle’s _______)

Answer 9

distal
Class II

Question 10

When the terminal planes of A&J are vertically coincident or straight, it is a ______________ terminal plane.

Answer 10

flush or straight

Question 11

If the terminal plane of the upper primary molar is 3+mm distal to the terminal plane of the lower primary molar, and the permanent 1st molars are End on, the occlusion in the permanent dentition may become ________.

Answer 11

Class I

Question 12

If the terminal plane of the upper primary molar is flush or mesial to the terminal plane of the lower primary molar, and the permanent 1st molars are End on, the AP molar relation in the permanent dentition will be ______

Answer 12

Class II

Question 13

the adult 1st molars in this case may be either…

Answer 13

class I or class III

Question 14

the adult 1st molars in this case will be…

Answer 14

class II

Question 15

the adult 1st molars in this case may be either be…

Answer 15

class I or class II

Question 16

Generally the canine and premolars are slightly _______ than the deciduous teeth

Answer 16

narrower

Question 17

Primary molars in a distal step leads to a permanent…

Answer 17

class II or end-end

Question 18

Primary molars in a mesial step leads to a permanent…

Answer 18

class I or class III

Question 19

Primary molars in a flush terminal plane leads to a permanent…

Answer 19

end-end or class I