Occlusion Quiz 1: SLIDES 1-9

Question 1

Slide 1: Basic Structure of the Temporomandibular Joint

Movement is characterized by position of _____________ in ______________?

– This is the ____________ or “_________” view of the patient

Answer 1

– position of CONDYLE in GLENOID FOSSA

– This is the SAGITTAL or “SIDE” view of the patient

Not CORONOID

Question 2

Slide 2:
Ligaments Supporting the Temporomandibular Joint and the Mandible have 3 functions and purposes: What are they?
1) What do they limit?
2) What do they protect? Especially during when?
3) They are _________, _____________, and do not have _______________?

Answer 2

1. They limit mandibular movement
2. Protect the musculature, especially during extreme movement
3. They are non-elastic, non-contractile, and do not have innervation.

Question 3

Slide 3: Normal Temporomandibular Joint Anatomy:

The articular disc is attached to _________________ (of the SUPERIOR HEAD of the LATERAL PTERYGOID) at the anterior portion, but the ___________ ____________ in the posterior region.

Answer 3

The ARTICULAR DISC is attached to the MUSCULATURE ( of the superior head of the lateral pterygoid) at the anterior portion, but to the RETRODISCAL TISSUES in the posterior region.

Question 4

Slide 4: Sagittal View – Temporomandibular Ligament
(Rotational and Translational Movement Limits – Posterior Movement Limits)

What does OOP stand for and what does it limit?

Answer 4

OOP = OUTER OBLIQUE PORTION

Limits normal rotational opening movement

Question 5

Slide 4: Sagittal View – Temporomandibular Ligament
(Rotational and Translational Movement Limits – Posterior Movement Limits)

What does IHP stand for and what does it limit?

Answer 5

IHP = INNER HORIZONTAL PORTION

Limits posterior movement of condyle and disc.

Question 6

Slide 5: Articular Surface of the Condyle

• • There is a greater articular surface area on which aspect of the condyle?
• • Most of the articulation between the condyle and the ________ disc and the ________ bone will occur in the __________ aspect of the condyle?

Answer 6

• • There is a greater surface area on the posterior aspect of the condyle.
• -Most of the articulation between the condyle and the ARTICULAR disc and the TEMPORAL bone will occur in the ANTERIOR aspect of the condyle.

Question 7

Slide 6: Terminology Describing Tooth position: MAXIMUM INTERCUSPATION

– What is another termed used for MAXIMUM INTERCUSPATION that is now an obsolete term?

Answer 7

– Centric Occlusion (CO)

Question 8

Slide 6: Terminology Describing Tooth position: MAXIMUM INTERCUSPATION

– Maximum Intercuspation is commonly referred to as ___________ ________ or _________ _________ because the patient can achieve this position by “___________”

Answer 8

– Commonly referred to as HABITUAL OCCLUSION or HABITUAL CENTRIC, because the patient can achieve this position by “ HABIT”

Question 9

Slide 6: Terminology Describing Tooth position: MAXIMUM INTERCUSPATION

Maximum INTERCUSPATION describes what type of relationship/position?

Answer 9

Maximum intercuspation describes an OCCLUSAL RELATIONSHIP or TOOTH POSITION.

Question 10

Slide 6: Terminology Describing Tooth position: MAXIMUM INTERCUSPATION

The teeth are contacting in a position that the patient finds it ___________ ____________?

Answer 10

MOST COMFORTABLE

Question 11

Slide 6: Terminology Describing Tooth position: MAXIMUM INTERCUSPATION

It is easily ______________, but not always ______________, by the patient.

Answer 11

It is easily ACHIEVABLE, but not always REPRODUCIBLE, by the patient.

Question 12

Slide 7: Describing Mandibular Position: Centric Relationship

Centric Relationship is:

• • What kind of position?
• • (T/F) Does not need any tooth contact to be obtained.

Answer 12

– Condylar position

– True: DOES NOT NEED ANY TOOTH CONTACT TO BE OBTAINED

Question 13

Slide 7: Describing Mandibular Position: Centric Relationship

Centric Relationship is:
Establishes the position of the condyle in the ________ and __________ location with the disc properly INTERPOSED between the ___________ and the __________ bone.

Answer 13

Establishes the position of the condyle in a SUPERIOR and ANTERIOR location with the disc properly INTERPOSED between the condyle and the TEMPORAL bone

Question 14

Slide 7: Describing Mandibular Position: Centric Relationship

Centric Relationship is:
Articulation occurs where in mandibular position?

Answer 14

Articulation occurs on the THIN portion of the articular disc.

Question 15

Slide 7: Describing Mandibular Position: Centric Relationship

Centric Relationship is:
Described as the (LEAST or MOST) stable position of the condyle?

Answer 15

Described as the MOST STABLE position of the condyle

Question 16

Slide 7: Describing Mandibular Position: Centric Relationship

Centric Relationship is:
A position of the ____________ (maxilla or mandible) where the musculature displays ___________ tonus

Answer 16

A position of the MANDIBLE where the musculature displays MINIMAL TONUS

Question 17

Slide 8: Maximum Intercuspation Clinical Conditions:

What determines the occlusal position?

Answer 17

TEETH determines the occlusal position.

Question 18

Slide 8: Maximum Intercuspation Clinical Conditions:

What two factors, if do not coincide, will cause the patient to have a “slide”?

Answer 18

• CENTRIC RELATION and MAXIMUM INTERCUSPATION

Question 19

Slide 8: Maximum Intercuspation Clinical Conditions:

Most patients have some degree of a slide from ________ ___________ into ____________ ____________ ( It is approximately _______ mm in length)

Answer 19

Most patients have some degree of a SLIDE from centric relation into maximum intercuspation ( it is approximately 1-2mm in length)

Question 20

Slide 8: Maximum Intercuspation Clinical Conditions:

• • Maximum Intercuspation is what kind of contact?
• • Which teeth does it involve?
• • It is the “_________” of the slide

Answer 20

• Maximum intercuspation is SIMULTANEOUS contact of ALL THE TEETH and is the “ENDPOINT” of the slide

Question 21

Slide 8: Maximum Intercuspation Clinical Conditions:

All occlusal forces should be concentrated where?

Answer 21

All occlusal forces should be concentrated DOWN the LONG AXIS of POSTERIOR TEETH.

Question 22

Slide 8: Maximum Intercuspation Clinical Conditions:

What kind of position is dynamic in nature and will change throughout a patient’s life.

Answer 22

MAXIMUM INTERCUSPATION POSITION is dynamic in nature and will change throughout a patient’s life.

Question 23

Slide 9: In an IDEAL OCCLUSION ( meaning that there is no slide)

When the mandibular teeth close against the maxillary teeth:

• • There is an ___________ way for the teeth to contact each other
• • There is an ideal LOCATION for the _________ and _________ ______ to be situated
• • The musculature should be at ____________ tonus
• • Occlusal contact should be __________ (uniform or nonuniform) and (simultaneous or nonsimultaneous)

Answer 23

When the mandibular teeth close against the maxillary teeth:

• • There is an IDEAL way for the teeth to contact each other
• • There is an ideal LOCATION for the CONDYLE and ARTICULAR DISC to be situated
• • The musculature should be at MINIMAL tonus
• • Occlusal contact should be UNIFORM and SIMULTANEOUS.