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Quiz 1 Flashcards

(67 cards)

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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
A __ palate is not good for stability
high vault
26
This area of the palate usually needs relief to prevent soreness
Midline palatal suture
27
Medial to 3rd molars, relief is not usually needed
Greater palatine foramen
28
Mandibular areas of the denture (9)
Labial with labial frenum Buccal frenum buccal Distobuccal Distolingual midlingual sublingual or sublingual cresent Retromolar pad Alveolar ridge
29
Groove underneath the retromolar pad that provides extra retention to the denture
Retromylohyoid fossa
30
Frenums of the mandible
Labial Buccal (one on each side) (May need relief to prevent dentures from being dislodged)
31
Primary stress bearing area in the mandibular arch
Buccal Shelf
32
The greater access to this area the more support
buccal shelf
33
Denture bearing area in the mandibular
retromolar pad
34
What is done at a screening appointment
Medical/Dental history Panoramic x-ray PDI form (Determines suitability for treatment)
35
What is done at a comp exam for a denture patient
Complete denture prosthodontics patient evaluation and mouth examination form is filled out
36
What Classes of denture are okay for DMD
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
If a denture case is assigned to a DMD student a __ is started
Step card (Must be used for each step of the procedure)
38
After a step card is started what is done next
Primary impressions are taken
39
Primary impression are used to make
primary casts
40
What are necessary to fill in the undercuts of the primary impression
blockouts (use the minimum amount necessary, should not fill vestibule)
41
Once you have poured up our impression you mark it, explain this
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
Once you have marked your pour up, you cover the pour up with baseplate wax, explain
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
Once your baseplate is covered in wax, you form your custom tray, explain
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
Fastray is sensitive to
light
45
Explain the handle for the maxillary tray
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
Explain the handle for the mandibular tray
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
How long are the trays put into the triad
2 minutes
48
Trimming of custom trays is done with the __ burrs leaving __ mm of clearance from the vestibule
Acrylic 2-3 mm
49
Custom trays will only be as good as the __
Primary impression
50
Causes of tooth loss
Poor Tooth care accidents cancer severer wear genetics
51
Denture at ULSD steps (7)
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
What is the transparent material Dentures are made of
PMMA - Polymethyl methacrylate
53
What is the monomer used to produce PMMA
methyl methacrylate
54
PMMA is naturally compatible with
human tissue
55
Once teeth are removed, resorption of the __ begins
Edentulous ridge
56
The primary stress bearing structures of the mandibular denture are the __ and __
buccal shelf and the retromolar pads
57
What are the secondary stress bearing structures of the mandibular denture
Residual ridges
58
The buccal shelf is bordered by the crest of the ridge and the attachment of the __ muscle
buccinator
59
The ___ is formed by the contraction of the masseter muscle and must be included in mandibular denture design
masseteric notch
60
The buccal shelf consists of thick cortical bone and lies at right angles to
vertical occlusal planes
61
Denture can impinge on this area and must be given relief - it is a sharp bony attachment for a muscle of the same name
mylohyoid ridge
62
With a severely atrophic/ resorbed mandible the __ is on top of the ridge
mental foramen
63
We DO NOT construct __ complete dentures opposing any __
Mandibular complete dentures Maxillary natural teeth (Forces of natural teeth will accelerate atrophy of mandibular ridge)
64
Can we make maxillary dentures opposing mandibular natural teeth
YES (The palate is a much more resilient supporting structure and the maxillary ridge atrophy will not be as severe)
65
What are the primary stress bearing structures for the maxillary denture
The horizontal portion of the hard palate and the palatal slopes of the edentulous ridges
66
What are the secondary stress bearing structures of the maxillary denture
crests and ridges, rugae area and maxillary tuberosity
67
If there is tori they are not used as a
Primary stress bearing area - given relief

CD (2 decks)

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