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Rem Pros > Full Dentures > Flashcards

Full Dentures Flashcards

1
Q

The RVD changes depending on whether you’re dentate or edentulous

True or false

A

False. RVD does not change.

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2
Q

When doing two stage extractions, you should keep the premolars for:

A

Maintaining stability of occlusal vertical dimension

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3
Q

If doing extractions in two stages, how long should be allowed between exos?

A

6 weeks

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4
Q

5 surgical risk related contra-indications for full dentures

A
  1. Radiation therapy or bisphosphonates
  2. Bleeding disorders
  3. Medically compromised patients, debilitating diseases
  4. Excessive surgical reduction of the alveolar processes required
  5. Large cysts/abscesses that need drainage after surgery
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5
Q

List 3 psychological contraindications for full dentures

A
  • Diminished psychological capacity
  • Poor attitude
  • Unrealistic expectations
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6
Q

What is a possible idea when you need to take impressions but teeth are mobile:

A

Splint with composite - don’t etch

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7
Q

What are 3 advantages of beading and boxing

A
  • Superior hardness of cast surface
  • Preserves borders of impression (accurate width of sulcus)
  • Minimises trimming
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8
Q

Why is it a good idea to draw pocket depth on casts?

A

Gives idea of where bone is, which helps determine shrinkage

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9
Q

Where should casts be trimmed in the maxilla?

A

Buccal and vertical

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10
Q

Where should casts be trimmed in the mandible?

A

Vertically only

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11
Q

What is the technique where pencil lines indicate pocket depth to help with cast trimming:

A

Jerbi

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12
Q

If you go to insert the final denture and it’s too small, what has likely happened?

A

The casts have been over-trimmed

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13
Q

When might a shorter flange be indicated?

A

Signiicant labial undercut

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14
Q

Key anatomical contributors to retention for full dentureS:

A
  • Sulcus depth
  • Tongue (sits against lingual flange)
  • Masseter and buccinators retention on buccal
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15
Q

Why is a vaulted palate not ideal?

A

Limits contact area

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16
Q

Why are V shaped palates not ideal?

A

Can have undercut

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17
Q

5 sequelae of wearing complette dentures:

A
  • Residual ridge resorption
  • Changes in intra-oral structures
  • Decreased masticatory function
  • Loss of facial support and muscle tone
  • Psycho-social effects
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18
Q

Most RRR occurs in the first months following exos

A

6-24 months

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19
Q

The maxilla resorbs 4x faster than the mandible

True or false

A

FALSE

Mandible 4x faster!

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20
Q

What is the most ideal bone type?

A

Type 2

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21
Q

3 systemic factors for RRR:

A

Osteoporosis, Osteomalacia, Osteopenia

22
Q

People with a square jaw are less likely to have significant RRR

True or false

A

True

23
Q

RVD - OVD =

A

Freeway Space

24
Q

Condition with severe anterior maxillary resorption, combined with hypertrophic and atrophic changes in different quadrants of the maxilla and mandible.

Lack of support due to distance between bone and mucosa.

A

Combination Syndrome.

Commonly seen in patients with a completely edentulous maxilla and partially edentulous mandible with preserved anterior teeth

25
Q

Which statement is false:

a) Retention is mostly associated with Physiologic comfort
b) STability is mostly associated with physiologic comfort
c) Supprt is mostly associated with longevity
d) Retention is mostly associated with psychologic comfort

A

a)

26
Q

5 contributors to full denture retention:

A
  • Saliva viscosity and quantity
  • Border seal (peripheral seal)
  • Large area of coverage by base
  • Close tissue adaptation
  • Neuromuscular control
27
Q

Why is neuromuscular control important in lower dentures in particular?

A

Tongue pushes up while eating to prevent seal breaking

28
Q

Tongue position affects stability and retention of complete denture. What position is better?

A

Anterior.

29
Q

Common condition characterised by mild inflammation and redness of the oral mucosa beneath a denture. Candida is involved in 90% of cases.

A

Denture-related stomatitis

30
Q

What Newtons Classification of denture stomatitis is this:

Localised Inflammation or pinpoint hyperemia

A

Type I

31
Q

What Newtons classification fo Denture-related stomatitis is this?

“More diffuse erythema involving part or all of the mucosa which is covered by the denture”

A

Type 2

32
Q

What Newtons Classification of denture related stomatitis is this:

“Inflammatory nodular/papillary hyperplasia usually on the central hard palate and ridge”

A

Type 3

33
Q
A
34
Q

How thick should a special tray be at the

a) periphery
b) everywhere else

A

a) 2-3mm
b) 1-2mm

35
Q

There needs to be at least how many mm of freeway space

A

2mm

36
Q

What are the five factors affecting occlusl balance, and which 3 can be controlled by the dentist

A
  1. Condylar inclination
  2. Occlusal plane inclination
  3. Incisal guidance
  4. Cuspal inclination
  5. Compensating curve

Last three can be controlled by dentist

37
Q

In completel dentures is incisal guidance ideally maximised or minimised

A

Minimize incisal guidance to prevent tipping

38
Q

What is the most common occlusal scheme:

A

bilateral balanced occlusion

39
Q

In order to achieve bilateral balanced occlusion with non-anatomic teeth, what needs to be used:

A

Balancing ramps or manipulation of compensating curve

40
Q

Do bilateral balanced teeth on full dentures have group function or canine guidance?

A

Neither.

41
Q

5 indications for ingualised occlusion

A
  • High aesthetic demands
  • Severe mandibular ridge atrophy
  • Displaceable supporting tissues
  • Malocclusion
  • Previous successful denture with lingualised
42
Q
A
43
Q

In lingualised occlusion, on lateral excursions there should be at least points of contact bilateral balance.

A

3

44
Q

What is the main limitation of neutro-centric occlusion?

A

Similar to monoplane occlusion. Pt has to chomp, not chew.

45
Q

How thick should palatal acrylic be?

A

2-3mm

46
Q

Bilateral balance in lateral excursions is an ideal outcome with full on full dentures

True or false

A

true

47
Q

When is clinical remount normally performed?

A

Delivery of denture

48
Q

Which is located more anteriorly

a) Pear shaped pad
b) Retromolar pad

A

a) pear shaped pad. Is keratinised and attached.

Retromolar pad just distal is non-keratinized and free moving

49
Q

A class I denture set up should feature vertical and horizontal overlap of mm.

A

1-2mm

50
Q
A

Rem Pros (2 decks)

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