Test 1

Question 1

What defines class 1

Answer 1

Mesiobuccal cusp of max 1st molar is centered on the buccal groove of the mandibular 1st molar

Question 2

Class II is defined by what

Answer 2

Mandibular first molar is distal to the maxillary first molar

Question 3

What defines class III

Answer 3

Mandibular first molar is mesial to maxillary first molar

Question 4

Anterior guidance:

Answer 4

Anterior teeth limit mandibular movements

Question 5

Bennett angle

Answer 5

Angle between sagittal plane and average path of non-working condyle

Question 6

Balanced articulation (occlusion)

Answer 6

Simultaneous occlusal contact of teeth in centric and eccentric positions

Question 7

Border movement:

Answer 7

Mandibular movement at the limits dictated by an atomic structures

Question 8

Border position

Answer 8

A position of the mandible when it is at the limit of active or passive movement

Question 9

Canine protected articulation (canine guidance, cuspid guidance, cuspid rise)

Answer 9

Vertical and horizontal overlap of canine teeth disengage the posterior teeth in excursive movements of the mandible

Question 10

Centric cusps (supporting cusps, functional cusps, stamp cusps)

Answer 10

Lingual of maxillary and buccal of mandibular

Question 11

Centric occlusion

Answer 11

Occlusion of opposing teeth when mandible is in centric relation

Question 12

Centric relation

Answer 12

Most retrusive position of mandible

Question 13

Condylar guidance:

Answer 13

Part on articulator that controls movement of mobile member

Question 14

Curve of spee

Answer 14

Curve from canine to molar

Question 15

Curve of wilson

Answer 15

Viewed from front lingual cusps of mandibular teeth are lower and mandibular teeth have a lingual tilt to their crowns

Question 16

Mandibular translation (Bennett movement, sideshift)

Answer 16

Mediolateral movment of mandible when viewed in frontal plane

Question 17

Mutually protected articulation:

Answer 17

Posterior teeth prevent excessive contact of anterior teeth

Anterior teeth disengage the posterior in all excursive movements

Question 18

Physiologic occlusion

Answer 18

Absent of signs and symptoms or pathosis

Question 19

Deflective occlusal contacts

Answer 19

Any tooth surface that hinders the desired occlusal contact during movement

Question 20

In lateral movement, the non working condyle moves how

Answer 20

Forward and medial

Question 21

How to find interocclusal rest distance?

Answer 21

VDR-VDO

Question 22

Anterior guidance is determined by what 2 things

Answer 22

Lingual concavities of maxillary anterior teeth

Vertical and horizontal overlap of maxillary and mandibular anterior teeth

Question 23

What are the 8 determinants of mandibular movement? (3 posterior, 2 anterior, 3 other)

Answer 23

Posterior:
Inclination of articular eminence
Medial wall of glenoid fossa
Intercondylar distance

Anterior:
Horizontal overlap of anterior teeth
Vertical overlap of anterior teeth

Other:
Occlusal plane
Curve of spee
Neuromuscular response

Question 24

Arcon vs. non arcon articulator

Answer 24

Arcon have condyles connected to lower member

Non-arcon have condyles connected to upper member

Question 25

The earbow records the relation between what

Answer 25

Maxillary arch and intercondylar axis

Question 26

Mandibular cast is related to the maxillary cast by what

Answer 26

Centric relation record

Question 27

Earbow has to be parallel to what

Answer 27

Interpupillary line

Question 28

3 ways to manipulate into CR

Answer 28

Chin point guidance Anterior deprogrammer Bilateral manipulation

Question 29

 Occlusal equilibration:

Answer 29

Selective grinding to reshape tooth surfaces that interfere with harmonious contact

Question 30

4 occlusal treatment goals

Answer 30

Direct forces along long axes MI contact is all at same time and same intensity Smooth protrusive path (posterior teeth don't get in way) Working side contacts should not be prevented by non working side interferences

Question 31

What's responsible for most failures in equilibration?

Answer 31

Improper manipulation of the mandible

Question 32

Equilibration procedures can be divided into 4 parts:

Answer 32

Reduction of occlusal tooth surfaces that interfere with centric relation Reduction of tooth structure that interferes with lateral excursions Elimination of posterior tooth structure that interferes with protrusive excursions Harmonization of the anterior guidance

Question 33

Sides to grind to eliminate anterior slide

Answer 33

MUDL

Question 34

Line of closure interferences cause the mandible to deviate ___ from the contact point to MI

Answer 34

Right or left

Question 35

When the mandible deviates toward the cheek the grinding rule is:

Answer 35

BULL

Question 36

If the mandible deviates toward the tongue while closing, the grinding rule is

Answer 36

LUBL

Question 37

T/F the vertical dimension of occlusion after equilibration at CR should be different than before adjustment

Answer 37

False, should be the same

Question 38

Lateral non-working interferences can be adjusted by using grinding rule

Answer 38

BULL

Question 39

If group function is to be achieved from working side interferences, ____ has to be done

Answer 39

Working side inclines are precisely adjusted

Question 40

To get anterior guidance on the working side the rule to use is:

Answer 40

LUBL

Question 41

To eliminate protrusive interferences, the ___ rule is used

Answer 41

DUML

Question 42

My articulator is the

Answer 42

Denar Mark 320

Question 43

In a mark 320, the protrusive adjusts from ___ to ___ ˚ and the fixed Bennett is at ___˚

Answer 43

0-60˚ | 15˚

Question 44

Which is the bigger triangle

Answer 44

Bonwill (condyles to incisors) is bigger than Balkwill (2nd molars to incisors)

Question 45

Christensen - ___ Monson - ____ Hall - ___

Answer 45

Space Denture Conical

Question 46

Occlusal harmony is balance between what

Answer 46

Elevator and depressor muscles

Question 47

THA =

Answer 47

Terminal hinge axis

Question 48

What pulls the condylar head out of the socket

Answer 48

Lateral pterygoid

Question 49

5 functions of anterior teeth

Answer 49

``` Anterior guidance Initial mastication Speech Lip support Esthetics ```

Question 50

Type pantograph does what

Answer 50

Records mandibular movements

Question 51

More HO requires ___ cusps while less allows ____ cusps

Answer 51

Shorter | Taller

Question 52

Significance of ear bow transfer

Answer 52

Relates maxillary cast to terminal hinge Orients max. Cast correctly in space Parallel to interpupillary line Permits mounting of max cast Mandibular cast can be mounted using CR

Question 53

Biting on something with anterior teeth is like a class. __ lever

Answer 53

3

Question 54

7 effects of tooth loss

Answer 54

``` Supraeruption Tilting Loss of contact Loss of posterior tooth support Loss of vertical dimension Flaring of anterior teeth Non working interferences ```

Question 55

4 things that can be done for occlusal therapy

Answer 55

Selective grinding Fixed pros Orthodontic therapy Orthgnathic surgery

Question 56

If a max tooth contacts in the third towards the fossa ___ is the treatment, in the middle third ___ is the treatment and in the cusp third ___ is the treatment

Answer 56

Selective grinding Fixed pros Orthodontic treatment

Question 57

5 things that influence treatment planning

Answer 57

``` Symptoms Condition of dentition Systemic health Esthetics Finances ```

Question 58

Selective grinding needs to be done only in the

Answer 58

Enamel

Question 59

Grinding on closing: ___, ___ and ___

Answer 59

MUDL BULL LUBL

Question 60

Selective grinding on opening: ___, ___ and ___

Answer 60

BULL LUBL DUML