Removable - Sheet1

Question 1

What is occlusion?

Answer 1

Occlusion is the static contact between opposing teeth while the mandible is stationary.

Question 2

What is articulation?

Answer 2

Articulation refers to the contact between opposing teeth when the mandible is in motion.

Question 3

Name the four key functional requirements of complete dentures.

Answer 3

Stability, support, retention, and appearance.

Question 4

How important is stability to dentures ?

Answer 4

Stability provides resistance to displacement during functional and parafunctional mandibular movements.

Question 5

What is the role of support in dentures?

Answer 5

Support ensures proper base fitting against the oral tissues.

Question 6

Why is retention important for dentures?

Answer 6

Retention ensures the denture stays securely in place under functional forces.

Question 7

How does occlusion impact the stability of dentures?

Answer 7

Proper occlusion enhances stability by balancing forces during mandibular movements.

Question 8

What are the two main categories of occlusal concepts?

Answer 8

Occlusion in centric position and occlusion in eccentric positions.

Question 9

Define point centric occlusion concept.

Answer 9

The cusp tips fit precisely into the opposing fossae with defined incisal overlap.

Question 10

What percentage of the population naturally has centric occlusion coinciding with centric relation?

Answer 10

10%

Question 11

What is a “slide in centric”?

Answer 11

A discrepancy where centric occlusion and centric relation positions differ due to wear or dental issues.

Question 12

Define long centric occlusion concept.

Answer 12

It provides freedom in centric occlusion by creating a flat area between centric relation and centric occlusion.

Question 13

How is freedom in centric achieved in long centric occlusion?

Answer 13

By altering the fossae of the teeth anteroposteriorly and mediolaterally.

Question 14

What is balanced occlusion?

Answer 14

Simultaneous and smooth gliding contacts of upper and lower teeth from centric to eccentric positions.

Question 15

Name a factor influencing eccentric occlusal balance that is not under the dentist’s control.

Answer 15

Condylar guidance.

Question 16

What is incisal guidance?

Answer 16

The relationship and angle of the anterior teeth during mandibular movements.

Question 17

What role do compensating curves play in occlusal balance?

Answer 17

They enhance stability by aligning with natural mandibular trajectories.

Question 18

Define bilateral occlusal balance concept.

Answer 18

Stable simultaneous contact of teeth in centric relation with smooth transitions to eccentric positions.

Question 19

What minimal vertical overlap is used in bilateral occlusal balance?

Answer 19

0.5 to 1 mm.

Question 20

What are the advantages of bilateral occlusal balance?

Answer 20

Improves masticatory efficiency and enhances denture stability.

Question 21

Name one disadvantage of bilateral occlusal balance.

Answer 21

It is labor-intensive and requires frequent maintenance.

Question 22

What is the lingualized occlusion concept?

Answer 22

It directs occlusal forces lingually to enhance lower denture stability.

Question 23

What teeth are used in the lingualized occlusion concept?

Answer 23

Maxillary anatomical teeth and mandibular non-anatomical teeth.

Question 24

What is the primary occlusal contact in lingualized occlusion?

Answer 24

Palatal cusps of maxillary teeth occlude with mandibular fossae.

Question 25

Name one advantage of lingualized occlusion.

Answer 25

Better chewing efficiency than monoplane occlusion.

Question 26

Name one disadvantage of lingualized occlusion.

Answer 26

Requires grinding to achieve cusp-fossa contacts.

Question 27

What is the monoplane occlusion concept?

Answer 27

It uses cuspless teeth with flat occlusal surfaces set on a single plane.

Question 28

What is the recommended overbite and overjet in monoplane occlusion?

Answer 28

Minimal overbite and overjet.

Question 29

Why is monoplane occlusion suited for patients with ridge resorption?

Answer 29

Its flat plane adapts to anatomical changes over time.

Question 30

Name one advantage of monoplane occlusion.

Answer 30

Simplifies jaw records and tooth arrangement.

Question 31

Name one disadvantage of monoplane occlusion.

Answer 31

Reduced masticatory efficiency.

Question 32

What is the purpose of balancing ramps in non-anatomical teeth arrangement?

Answer 32

To maintain occlusal balance during excursions.

Question 33

How do compensating curves assist non-anatomical teeth arrangements?

Answer 33

They align teeth for stability and functional harmony.

Question 34

What is the curve of Spee?

Answer 34

An anteroposterior curve in the occlusal plane to enhance functional efficiency.

Question 35

What is the curve of Wilson?

Answer 35

A mediolateral curve to improve occlusal stability.

Question 36

Name an advantage of using compensating curves with non-anatomical teeth.

Answer 36

Prevents destabilizing forces during mandibular movements.

Question 37

What is the key disadvantage of using ramps or curves in setup?

Answer 37

Requires precise laboratory setup.

Question 38

Name the three most common concepts of eccentric occlusion.

Answer 38

Bilateral occlusal balance, monoplane occlusion, and lingualized occlusion.

Question 39

Why is bilateral occlusal balance challenging to maintain?

Answer 39

Frequent base adjustments are needed as dentures settle.

Question 40

How do compensating curves affect anterior tooth aesthetics?

Answer 40

They allow a more natural overlap of anterior teeth.

Question 41

What is the main focus of lingualized occlusion?

Answer 41

Stability of the lower denture through lingual force distribution.

Question 42

What is the role of anterior teeth in bilateral occlusal balance?

Answer 42

To ensure smooth transitions with minimal overlap and overjet.

Question 43

How does monoplane occlusion handle lateral stresses?

Answer 43

It eliminates them, reducing mucosal irritation.

Question 44

Why are flat teeth used in monoplane occlusion?

Answer 44

To adapt to variable occlusal relationships caused by ridge resorption.

Question 45

What is the main determinant of success in occlusal concepts?

Answer 45

Matching the patient’s anatomical and functional needs with the appropriate occlusal scheme.