Week 12 - Occlusion and TMD

Question 1

Tempromandibular disorders

Answer 1

A common subgroup of Orofacial pain disorders

Question 2

What are the types of Temporomandibular disorders

Answer 2

Myogenous TMD

Arthrogenous TMD

Question 3

Why is diagnosis of the type of TMD so important?

Answer 3

If you treat a myogenous TMD when it is actually Arthrogenous, issues will get worse

Question 4

Myogenous TMD

Answer 4

Muscle related

Question 5

Arthrogenous

Answer 5

Joint related

Question 6

What is the basis of a good TMD diagnosis?

Answer 6

History taking

Question 7

What are some ‘cardinal criteria’ to be considered when diagnosing TMD?

Answer 7

Pain
Limitation of function
Limitation of movement
Physical changes
Altered jaw relationships
TMJ sounds that have been increasing in intensity and frequency

Question 8

Etiology of TMD

Answer 8

Normal function + An Event –> Physiological tolerance –> TMD symptoms

Question 9

What are the etiological factors of TMD?

Answer 9

Predisposing factors
Initiating factors
Perpetuating factors

Question 10

Predisposing factors

Answer 10

Increase the risk for TMD

-can be systemic, occlusal, loss of posterior teeth

Question 11

Initiating factors

Answer 11

Cause TMD

-trauma, parafunctional habits

Question 12

Perpetuating factors

Answer 12

Enhance the progression of TMD

-behavioral, emotional, or social strss

Question 13

How does occlusion relate to TMD?

Answer 13

Problems binging the teeth together into MI are reflected in the muscles
Once the teeth are in occlusion, problems loading the masticatory structures are reflected in the joints

Question 14

Orthapedic stability

Answer 14

Occurs when the stable MI position of teeth is in harmony with the musculoskeletally stable position of the condyles in their fossa

Question 15

What are the types of activities of the masticatory system?

Answer 15

Functional

Parafunctional

Question 16

Functional activities of the masticatory system

Answer 16

Chewing, eating, and swallowing

Question 17

Parafunctional activities of the masticatory system

Answer 17

Diurnal parafuncitonal activities

Nocturnal parafunctional activities

Question 18

Diurnal parafunctional activities

Answer 18

Clenching and grinding
Cheek and tongue biting
Finger and thumb sucking

Question 19

Nocturnal parafuncitonal activities

Answer 19

Bruxing

Question 20

If occlusal interferences create muscle symptoms, what should occur?

Answer 20

Dentistry should be the main provider of care for most TMDs

Question 21

If occlusal interferences are not related to symptoms, what should occur?

Answer 21

Dentist should refrain from providing dental therapies

Question 22

When should prosthetic treatment of TMD patients occur?

Answer 22

After reversible therapy has resulted in relief of pain and the normalization of funciton