OCCLUSION

Question 1

Which tooth has the greatest inclination

facially (faciolingual tilt)?

Answer 1

Maxillary Central incisors

followed by max. lats and then mand. incisors

Question 2

Which teeth have the least tilt of all teeth and are called the straightest in the mouth?

Answer 2

Premolars

Question 3

All teeth tilt facially, thus their roots are lingual EXCEPT

Answer 3

mand. 2nd premolars and molars

Question 4

All teeth tilt mesially EXCEPT

Answer 4

max. central incisors and the mand. central and lateral incisors

Question 5

Which tooth has the greatest mesial tilt?

Answer 5

Maxillary canines

Question 6

Mandibular posterior roots are inclined ________ thus crowns inclined _______

Answer 6

Facially, lingually

Question 7

Maxillary posterior roots are inclined ________ thus crowns inclined _______

Answer 7

Lingually, facially

Question 8

Supporting/holding cusps of posterior teeth

Answer 8

MAXILLARY LINGUAL (UL) 
MANDIBULAR BUCCAL (BL)

Question 9

What do supporting/holding cusps occlude with?

Answer 9

They contact fossa or marginal ridges of the opposing arch

Question 10

Guiding cusps of posterior teeth

Answer 10

• a. Buccal of the upper (BU)
• b. Lingual of the lower (LL)
• c. Together BU+LL=BULL (a way to remember this)

Question 11

What do guiding (non functional) cusps occlude with?

Answer 11

Lie in embrasures or grooves of the opposing arch

Question 12

ML cusps of all max. molars occlude with…

Answer 12

CENTRAL FOSSA OF OPPOSING TOOTH

Question 13

DB cusp of mand. 1st molar occludes in…

Answer 13

central fossa of max. 1st molar

Question 14

D cusp of mand. 1st molar occludes in…

Answer 14

distal triangular fossa of max. 1st molar

Question 15

DB cusp of mand. 2nd molar occludes in…

Answer 15

central fossa of max. 2nd molar

Question 16

Where does the lingual cusp of a 1st max. premolar contact?

Answer 16

the distal marginal ridge (DMR) of the mand. 1st

premolar and the mesial marginal ridge (MMR) of the mand 2nd premolar

Question 17

Where does the lingual cusp of a 2nd max. premolar contact?

Answer 17

the DMR of the mand 2nd mand. Premolar and

the MMR of mand. 1st molar.

Question 18

Where does the DL cusp of a 1st max. molar contact?

Answer 18

DMR of the mand. 1st molar. and the MMR of the

mand. 2nd molar

Question 19

Where does the DL cusp of a 2nd max. molar contact?

Answer 19

the DMR of the mand. 2nd molar and MMR of the

mand. 3rd molar

Question 20

Where does the buccal cusp of a 1st mand. premolar contact?

Answer 20

MMR of the max. 1st premolar and slightly out

of contact with the DMR of the max. canine.

Question 21

Where does the buccal cusp of a 2nd mand. premolar contact?

Answer 21

the MMR of the max. 2nd premolar and the DMR

of the max. 1st premolar

Question 22

Where does the MB cusp of a 1st mand. molar contact?

Answer 22

MMR of the max. 1st molar and the DMR of the

max. 2nd premolar

Question 23

Where does the MB cusp of a 2nd mand. molar contact?

Answer 23

MMR of 2nd max. molar and the DMR of max.

1st molar

Question 24

Where does the buccal cusp of a 1st max. premolar contact?

Answer 24

facial embrasure between the 1st and 2nd mand.

premolars.

Question 25

Where does the buccal cusp of a 2nd max. premolar contact?

Answer 25

facial embrasure between the mand 2nd premolar | and the mand. 1st molar

Question 26

Where does the MB cusp of a 1st max. molar contact?

Answer 26

the MB groove of the mand. 1st molar

Question 27

Where does the DB cusp of a 1st max. molar contact?

Answer 27

in the DB groove of the mand. 1st molar

Question 28

Where does the MB cusp of a 2nd max. molar contact?

Answer 28

lies in the B groove of the mand. 2nd molar

Question 29

Where does the DB cusp of a 2nd max. molar contact?

Answer 29

the facial embrasure between the mand 2nd and 3rd | molar

Question 30

Where does the lingual cusp of a 1st mand. premolar contact?

Answer 30

L cusp is non-functional, but lies in the lingual | embrasure of the max. canine and max. 1st premolar

Question 31

Where does the lingual cusp of a 2nd mand. premolar contact?

Answer 31

the lingual embrasure between the max. | 1st and 2nd premolar

Question 32

Where does the ML cusp of a 1st mand. molar contact?

Answer 32

the lingual embrasure between the max. 2nd premolar | and the max. 1st molar

Question 33

Where does the DL cusp of a 1st mand. molar contact?

Answer 33

lies in the lingual groove of the max. 1st molar

Question 34

Where does the ML cusp of a 2nd mand. molar contact?

Answer 34

lies in the lingual embrasure between the max. 1st and 2nd molar.

Question 35

Where does the DL cusp of a 2nd mand. molar contact?

Answer 35

lies in the lingual groove of the max. 2nd molar

Question 36

Max. central incisors occludes with

Answer 36

overlap mand. central & lateral incisors

Question 37

Max. lateral incisors occludes with

Answer 37

overlap mand. lateral incisors & canines

Question 38

Max. canine occlude with

Answer 38

lies in the facial embrasure between the mand. | Canine and 1st premolar

Question 39

Mand. central Incisors occlude with

Answer 39

MI angle opposes max. central incisor | MMR & DI angle opposes max. central’s lingual fossa

Question 40

Mand. lateral incisors occlude with

Answer 40

MI angle opposes DMR of max. central | incisor & DI angle opposes lingual fossa of max. lateral incisor

Question 41

Mand. Canine occlude with

Answer 41

lies in the lingual embrasure between the | max. lateral incisor and canine

Question 42

Centric Occlusion

Answer 42

TOOTH GUIDED POSITION 1. maximum intercuspation 2. habitual position 3. acquired position

Question 43

Centric Relation

Answer 43

LIGAMENT GUIDED POSITION 1. most retruded position of the mandible 2. terminal hinge position 3. non-funtional

Question 44

Physiological Rest Position

Answer 44

MUSCLE GUIDED POSITION 1. position when teeth are NOT in contact 2. position from which all movements originate and return 3. postural position

Question 45

In lateral movement on the WORKING SIDE, the MAX 1st molar ML cusp passes through what?

Answer 45

LINGUAL GROOVE OF MANDIBULAR 1ST MOLAR