PRELIMS: DIVISIONS INTO THIRDS, LINE ANGLE & POINT ANGLE

Question 1

The means of dividing a tooth into 3 parts

Answer 1

DIVISION INTO THIRDS

Question 2

How is the division into thirds divided?

Answer 2

ACCORDING TO THEIR LOCATION

~ACCORDING TO HOW IT IS DIVIDED ( HORIZONTALLY OR LONGITUDINALLY)

Question 3

What are the 2 parts of a tooth?

Answer 3

~ROOT

~CROWN

Question 4

2 Main types of division

Answer 4

~HORIZONTAL DIVISION

~LONGITUDINAL DIVISION

Question 5

Types of horizontal division

Answer 5

~CERVICAL
~MIDDLE
~OCCLUSAL FOR POSTERIOR TOOTH
~INCISAL THIRD FOR ANTERIOR TOOTH

Question 6

Types of longitudinal division

Answer 6

~FACIAL
~MIDDLE
~LINGUAL 3RD
~MESIAL
~DISTAL 3RD

Question 7

Angles formed by the junction of 2 surfaces deriving its name from the combination of the 2 surfaces that join

Answer 7

LINE ANGLE

Question 8

What are the line angles of anterior teeth?

Answer 8

~LABIOINCISAL
~LINGUOINCISAL
~MESIOLINGUAL
~DISTOLINGUAL
~MESIOLABIAL
~DISTOLABIAL

Question 9

What are the line angles of posterior teeth?

Answer 9

~MESIOOCCLUSAL
~LINGUOOCCLUSAL
~MESIOLINGUAL
~DISTOLINGUAL
~MESIOBUCCAL
~DISTOBUCCAL
~BUCCOOCCLUSAL
~DISTOOCCLUSAL

Question 10

The angle formed by the junction of 3 surfaces

Answer 10

POINT ANGLE

Question 11

What are the point angles of anterior teeth?

Answer 11

~MESIOLABIOINCISAL
~MESIOLINGUOINCISAL
~DISTOLABIOINCISAL
~DISTOLINGUOINCISAL

Question 12

What are the point angles of posterior teeth?

Answer 12

~MESIOLINGUOOCCLUSAL
~MESIOBUCCOOCCLUSAL
~DISTOLINGUOOCCLUSAL
~DISTOBUCCOOCCLUSAL