The following quiz is taken from The Buccal Object Rule by Albert Richards.

The principles of the BOR have been explained and illustrated. However, there may be a difference between the author's explanation of the principles and the reader's comprehension and his application to radiographic interpretation. Some practical uses of the BOR will help to give the reader experience.

A test has been devised to provide the reader with some typical clinical conditions in which the BOR would be of great assistance. Although links to the answers are provided below each question, the reader is encouraged to take the test first before looking at the answers.

INSTRUCTIONS FOR TAKING QUIZ

TR-1

BuccallyLinguallyin the same plane

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-1

TR-2

BuccalLingualin the same plane

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-2

TR-3

AB

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-3

TR-4

AB

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-4

TR-5

DistobuccalDistolingual

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-5

TR-6

BuccallyLingually

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-6

TR-7

AB

BuccalLingual

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-7

TR-8

AB

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-8

TR-9

BuccallyLingually

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-9

TR-10

A is MesiobuccalMesiolingual

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-10

TR-11

BuccalLingual

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-11

TR-12

DistobuccallyDistolingually

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-12

TR-13

BuccallyLingually

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-13

TR-14

BuccalLingual

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-14

TR-15

A. BuccalLingual

B. BuccalLingual

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-15

TR-16

BuccalLingual

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-16

TR-17

BuccallyLingually

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-17

TR-18

BuccallyLingually

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-18

TR-19

BuccallyLingually

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-19

TR-20

AB

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-20

TR-21

BuccallyLingually

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-21

TR-22

BuccallyLingually

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-22

TR-23

Lateral incisorCentral incisor

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-23

TR-24

Up Down Mesial Distal

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-24

TR-25

BuccallyLingually

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-25

TR-26

BuccalLingual

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-26

TR-27

LabialLingual

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-27

TR-28

BuccallyLingually

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-28

TR-29

BuccalLingual

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-29

TR-30

MesiobuccalMesiolingual

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-30

TR-31

Up Down Mesial Distal

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-31

TR-32

BuccalLingual

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-32

TR-33

BuccalLingual

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-33

TR-34

BuccalLingual

Which BOR clues can be used to solve this?

1 2 3 4 5 6

7 8 9 10 11 12

ANSWERS TR-34

This concludes the quiz.