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CD > Quiz 1 > Flashcards

Quiz 1 Flashcards

1
Q

Resistance to vertical displacement during function

A

Retention

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2
Q

Lateral resistance to displacement during function

A

Stability

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3
Q

Resistance to vertical forces of occlusion

A

Support

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4
Q

What three things/factors impact the forces

A

Type of mucosa
Bone Contours
Muscle attachment (Frenum, tongue)

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5
Q

Have 45 cm^2 of nerves that send signals to the brain per arch. Can withstand 44 pounds of force

A

Dentate patients

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6
Q

23 cm^2 for maxilla and 12 cm^2 for mandible. Can withstand 13-16 pounds of force

A

Edentulous

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7
Q

2 physical features for denture retention

A

Max extension of the denture base

Max intimate contact of the denture base with the basal seat (using muscles to help with retention)

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8
Q

Areas of the maxillary denture

A

Labial area with labial frenum (frenulum)
Incisive papilla
Buccal Frenum (frenulum)
Buccal area
Hamular notch
Fovea palatini
Tuberosity and distobuccal area
palatal area

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9
Q

A high frenum attachment is when the attachment is close to the

A

occlusal ridge

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10
Q

A low frenum attachment is when the frenum is close to the

A

vestibule

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11
Q

Dentures need to be contoured around the

A

Frenum

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12
Q

Frenums on the maxilla

A

Labial
Buccal (one on each side)

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13
Q

Any surface bound by teeth, alveolar bone, and tissues and the other side by lips or cheeks

A

Vestibule

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14
Q

Supports the denture and presents them from twisting

A

canine eminence

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15
Q

Pressure on this point causes disruption of blood flow and impingement of nerve

A

Incisive papilla

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16
Q

Provides support to horizontal movement, needs room for 2-3 mm of space

A

Tuberosity

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17
Q

Raised area around the incisive papilla

A

Rugae

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18
Q

Helps to resist the anterior displacement for dentures

A

Rugae

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19
Q

Cleft from the tuberosity to the pterygoid muscles at the back of the tuberosity

A

Hamular notch

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20
Q

Two small pits in the posterior of the palate

A

Fovea palatinae

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21
Q

Dentures will end near or within 2mm of this landmark

A

Fovea palatinae

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22
Q

Area with keratinized tissue that can take stress

A

zygomatico-alveolar crest

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23
Q

Zygomatico-alveolar crest is a __ area

A

stress bearing

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24
Q

Primary support area for the maxillary dentures

A

hard palate (consists of 2 plates)

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25
Q

A __ palate is not good for stability

A

high vault

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26
Q

This area of the palate usually needs relief to prevent soreness

A

Midline palatal suture

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27
Q

Medial to 3rd molars, relief is not usually needed

A

Greater palatine foramen

28
Q

Mandibular areas of the denture (9)

A

Labial with labial frenum
Buccal frenum
buccal
Distobuccal
Distolingual
midlingual
sublingual or sublingual cresent
Retromolar pad
Alveolar ridge

29
Q

Groove underneath the retromolar pad that provides extra retention to the denture

A

Retromylohyoid fossa

30
Q

Frenums of the mandible

A

Labial
Buccal (one on each side)
(May need relief to prevent dentures from being dislodged)

31
Q

Primary stress bearing area in the mandibular arch

A

Buccal Shelf

32
Q

The greater access to this area the more support

A

buccal shelf

33
Q

Denture bearing area in the mandibular

A

retromolar pad

34
Q

What is done at a screening appointment

A

Medical/Dental history
Panoramic x-ray
PDI form (Determines suitability for treatment)

35
Q

What is done at a comp exam for a denture patient

A

Complete denture prosthodontics patient evaluation and mouth examination form is filled out

36
Q

What Classes of denture are okay for DMD

A

Class I and II are suitable for DMD
Class III is sometimes okay for DMD
Class IV need a referral for GPR or faculty

37
Q

If a denture case is assigned to a DMD student a __ is started

A

Step card (Must be used for each step of the procedure)

38
Q

After a step card is started what is done next

A

Primary impressions are taken

39
Q

Primary impression are used to make

A

primary casts

40
Q

What are necessary to fill in the undercuts of the primary impression

A

blockouts (use the minimum amount necessary, should not fill vestibule)

41
Q

Once you have poured up our impression you mark it, explain this

A

Used to visualize where the trays will go
Must be 2-3 mm from the vestibule
Marks where the relief wax will be placed (Do not place more relief wax where there is blockout wax already)
Avoid frenum attachments (Buccal frenum needs additional horizontal leeway)

42
Q

Once you have marked your pour up, you cover the pour up with baseplate wax, explain

A

CUt out the excess base plate wax to the line drawn on the stone pour up. use a heated buffalo knife to smooth the edges of the cuts
make sure to cut out wax from the stop areas

43
Q

Once your baseplate is covered in wax, you form your custom tray, explain

A

A barrier is needed between the wax and the custom tray material (vaseline, aluminum foil)
After barrier is placed fastray is placed on top while being molded into the shape

44
Q

Fastray is sensitive to

A

light

45
Q

Explain the handle for the maxillary tray

A

15 X 15 and 5-6 mm thick
At a 15 degree angle at the tip of the tray
An indent should be placed in the middle of the handle (thumb print)

46
Q

Explain the handle for the mandibular tray

A

Handle is a long strip that spans from molar region to molar region along the top of the tray
Height should be 1/2 up the retromolar pad

47
Q

How long are the trays put into the triad

A

2 minutes

48
Q

Trimming of custom trays is done with the __ burrs leaving __ mm of clearance from the vestibule

A

Acrylic
2-3 mm

49
Q

Custom trays will only be as good as the __

A

Primary impression

50
Q

Causes of tooth loss

A

Poor Tooth care
accidents
cancer
severer wear
genetics

51
Q

Denture at ULSD steps (7)

A

Screening appointment
Medical/Dental History
Panorex x-ray
PDI form
Complete denture prosth. evaluation and mouth examination form filled out
step card is started
Primary impression trays taken

52
Q

What is the transparent material Dentures are made of

A

PMMA - Polymethyl methacrylate

53
Q

What is the monomer used to produce PMMA

A

methyl methacrylate

54
Q

PMMA is naturally compatible with

A

human tissue

55
Q

Once teeth are removed, resorption of the __ begins

A

Edentulous ridge

56
Q

The primary stress bearing structures of the mandibular denture are the __ and __

A

buccal shelf and the retromolar pads

57
Q

What are the secondary stress bearing structures of the mandibular denture

A

Residual ridges

58
Q

The buccal shelf is bordered by the crest of the ridge and the attachment of the __ muscle

A

buccinator

59
Q

The ___ is formed by the contraction of the masseter muscle and must be included in mandibular denture design

A

masseteric notch

60
Q

The buccal shelf consists of thick cortical bone and lies at right angles to

A

vertical occlusal planes

61
Q

Denture can impinge on this area and must be given relief - it is a sharp bony attachment for a muscle of the same name

A

mylohyoid ridge

62
Q

With a severely atrophic/ resorbed mandible the __ is on top of the ridge

A

mental foramen

63
Q

We DO NOT construct __ complete dentures opposing any __

A

Mandibular complete dentures
Maxillary natural teeth
(Forces of natural teeth will accelerate atrophy of mandibular ridge)

64
Q

Can we make maxillary dentures opposing mandibular natural teeth

A

YES (The palate is a much more resilient supporting structure and the maxillary ridge atrophy will not be as severe)

65
Q

What are the primary stress bearing structures for the maxillary denture

A

The horizontal portion of the hard palate and the palatal slopes of the edentulous ridges

66
Q

What are the secondary stress bearing structures of the maxillary denture

A

crests and ridges, rugae area and maxillary tuberosity

67
Q

If there is tori they are not used as a

A

Primary stress bearing area - given relief

CD (2 decks)

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