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com rem final Flashcards

(103 cards)

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1
Q

What is a trial denture

A

preliminary arrangement of denture teeth that has been prepared for placement into the pt mouth

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2
Q

during the trial denture app _____ are crude approx of positions of teeth- ____ are arbitrary

A

wax rims and contours

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3
Q

During teh trial placement is it important to determine the

A

OVD

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4
Q

physiologic rest position is ____ mm space between teeth

A

2-4

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5
Q

Stretch relax method is when you

A

put a dot on nose and chin and measure the distance between dots

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6
Q

Swallow relax method should have th pt swallow and the teeth should _____ while swallowing

A

contact

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7
Q

There should be ____ when pt says S and Ch

A

no contact of teeth

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8
Q

When determining the CR occlusion must verify the cast are….

A

mounted corretctly on articulator

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9
Q

What do you do if you have to remount the cast

A

make a new interocclusal record by remounting madnibular cast

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10
Q

To determine the anterior occlusal plane what should you do

A

determined by esthetics and is when the max incisors contact lower lip with F and V sounds

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11
Q

To determine the posterior occlusal plane…

A

mandibular molars are 2/3 up RM pads

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12
Q

What sounds can you use to dermine the OVD

A

S Ch Z T Sh

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13
Q

if teeth touch when speaking S sounds, OVD is ____-

A

too far open

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14
Q

if pt whistles on sibilant sounds

A

contour of anterior palate is too narrow

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15
Q

whens speaking F or V the incisors should

A

hit the wet/dry lip line on lip and have pt count from 50-60

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16
Q

incisal plane paralleles the ______

A

interpupillary line

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17
Q

What is the importance of protrusive record

A

records condylar inclinations
adjust condylar angles
used for balance occlusion

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18
Q

When you are mounting the teeth should _____ perfectly and there should be no space around cusps

A

interdigitate

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19
Q

PMMA- acrylic resin is a

A

coloreless, transparent solid

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20
Q

what are the advantages of acrylic

A

ease in processing
excellent esthetics
adequate strength
low water sorption

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21
Q

When do you use heat activated denture base

A

used in fabrication of all dentures

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22
Q

_____ is a technique to process denture resins with heat activation

A

compression molidng

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23
Q

Internal porosity is caused by

A

temp rise above 100 celcius and is monomor boils

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24
Q

_______ have the same compositions as the denture base resin except for pigmentation to produce tooth shades

A

resin denture teeth

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25
In resin denture teeth the teeth and base are
chemically bonded to each other
26
what is the difference between autopolymerization and heat activated resins
autopolymerization uses benzyl peroxide
27
heat activation has a greater degree of _____
polymerization
28
Chemically activated or autopolymerization has
less shrinkage and shorter working time
29
What is the purpose a tissue conditioner
lining the intaglio surface of the denture with conditioners improves retention and stability
30
tissue conditioners allow the pt to keep wearing dentures when the _____
tissues continue to heal
31
What are the uses for tissue conditioner
prevent denture soreness stabilize temp record base stabilzie immediate denture healing final impression material
32
When is metal base dentures used
for repeated fracture of a conventional dentures
33
what is a disadvantage of metal denture
hard to reline
34
what is the purpose to reline a denture
to produce an intaglio surface which fits the mucosa accurately without affecting OVD
35
What are reasons you would reline
tissue changes caused by stress, hereditary factors, defects in dentures
36
relining is the replacing of the intaglio surface with
new resin
37
rebasing is replacing the ______ with new resin
entire denture base
38
what errors do you want to avoid with relining
dont increase OVD dont let max denture move forward during relin impression step
39
Diff between function impression and static impressions with relining
functional- leave in 1-2 hrs static- closed mouth technique and removed moments later not hrs
40
when do you place the posterior palatal seal when reling
before processing
41
most common situation in a single denture
max arch is edentuoulous and mand has natural teeth
42
_____ routine resorption following extraction of teeth results in smaller maxilla
centripetal resorption
43
_____ is when the max CD oppsoing mandibular naterior natural teeth
combination syndrome
44
effects of combination syndrome
max anterior tissue is mobile inflammatory palatal hyperplasia maxillary tuberosities enlarged mandibular resorption mand anterior teeth supraerupted
45
______ will help prevent rapid bone loss
overdentures
46
manibular anterior resorbs ____ as fast as max anterior
4x
47
what are the advantages of overdentures
dentures support stability improved stress distribution psychological benefit
48
When to use overdenture
combination syndrome conventional denture would have a poor prognosis
49
What is the most frequent tooth used for an abutment
canine
50
the maxilla resorbs ___ and
up and inward
51
biting force of natural dentition is ____ that of a denture
5x
52
What are the sources of occlusal error
-inaccurate max-man records -ill fitting temporary record bases -change of OVD on articular -incorrect arrangement of post teeth -failure to close flask during processing -too much pressure in closing the flask -resin shrinkage upon polymerization -heat generated when polishing
53
What is the goal of the insertion appointment
the process of eliminating errors
54
patients should leave out old dentures for at least ____ prior to insertion appointment
24 hrs
55
what cast do you remount for clinical remount
mandibular
56
what is PIP used for
used on itaglio surface to detect undercuts/ accuracy of tissue contact
57
After applying PIP and placing it in mouth, what do you remove
islands of pink
58
what is disclosing wax used for
check for overextension of denture borders
59
what can cause problems with phonetics
thickness of max palate re-evalulate position of max ant teeth open OVD
60
What can cause gagging
palate is too thick palate extension too long lack of tongue space
61
Dentist should ______ exist and work to find it
assume errors
62
when do you do a clinical remount
prior to making the reocrd
63
Process of clinical remount
place 2 cotton rolls between post teeth to deprogram muscles make interocclusal records remount dentures on articulator and refine occlusion
64
What are the advantages of clinical remont
reduces pt participation dentist sees better stable working foundation absence of saliva
65
Lab remount=
still on master cast, straight out of processing
66
clinical remount=
on articulator
67
what is the desired occlusion
simultaneous contact of all posterior teeth
68
NO contacts on _____ teeth
anterior
69
ALl pt with dentures should be seen ____ after insertion of denture
24-48 hrs
70
patients who are seen in 24-48 hrs do _____-
better with dentures
71
adjust the ____ surface first, then adjust _____
intaglio then the occlusion and outside
72
most crucial time in a patients perception of success of dentures is the ______
adjustment period
73
When is the time to remedy esthetic problems
trial placement period
74
what can cause tissue irritations
overextension trauma from occlusion pressure from base tissue abrasion
75
possible causes of loss of retention are
occlusion base contours teeth not in neutral zone posterior palate seal over/under extended salivary flow
76
soreness in vestibule caused by
overextended border of flange
77
sore on crest of ridge caused by
occlusion error
78
soreness at frenum caused by
frenal notch too shallow or sharp
79
soreness of tissue overlying coronoid process caused by
too much thickness at distobuccal corner
80
numbess or burning in anterior palate caused by
pressure on incisive papilla
81
numbness or burning in lower premolar area caused by
pressure over mental nerve
82
teeth contact during speaking then the
OVD too far open
83
If the dentures loosen after 3-4 hrs after the first insertion then there is
an occlusal error
84
max CD dislodges when yawing then
DB corner too thcik
85
smiling causes max CD to dislodge then
denture flange too thick posterior to buccal frenum
86
max CD dislodges when eating then
suspect post palatal seal or occlusion
87
Conventional denture is to
reline the immediate denture after healing and ridge stable (6months) fabricated prior to extracting teeth
88
what are the 2 phases of conventional immediate denture
phase 2- remove post teeth, alveoplasty, tuberosity reduction phase 2- extract ant teeth
89
Interim immediate dentures is ued for
short period then is replaced by a new set after healing
90
In immediate dentures a ____ is not possible
anterior try in so ethetics may be unpredictable
91
denture should be worn _____ without being removed by the patient
24 hours
92
what are the benefits of a 2 phase surgery
simplifies clinical procedures reduces post placement care improves denture comfort
93
complete denture therapy is not a
definitive treatment
94
ridge resorbs ___ on mand than max
4x
95
Description of traumatic ulcers
common with new dentures can be caused my occlusal issues or overexteneded
96
Description of inflammatory papillary hyerplasia
combination syndrome related to wearing ill fitting denture candida present
97
angular cheilitits description
is inflamattion of lips with redness radiating from angles of mouth assosciated with candida decreased OVD and vitamine def
98
descrption of fibrous hyperplasia aka epulis fissuratum
little lip f tissue caused by ill fitting dentures. NOT APART of combination syndrome found on labila vestibule not on lingual
99
description of canida
most common on max arch HIV and diabetes are presisposing conditions
100
3 presentations with HIV are
angular cheilitis erythematous candidiasis pseudomembranous canidia
101
What is the occlusion desired
simultaneous contact of all posterior teeth in CR No anterior contact No inferferenecs in eccentric movements
102
a disadvantage to immediate dentures is that there is a lack of
a trial dentures so cant determine the anterior esthetics
103

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