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Denture reading exam 1 > Sweep 1 > Flashcards

Sweep 1 Flashcards

1
Q

These are just from the lectures - they pretty much are the slides that I didn’t know put into flashcards.

A

The fact that I have so damn many cards is why I can’t have nice things…

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2
Q

set the remaining

maxillary anterior teeth on

A

a clear glass or plastic

slab is positioned on the mandibular record base to represent the plane of occlusion.

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3
Q

Cuspids need

A

distal inclination from perpendicular with incisal edge touching occlusal plane.

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4
Q

Note how the cervical and incisal edges of the cuspid are aligned

A

vertically (yellow line).

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5
Q

The facial surface of the cuspid however, is canted

A

inward and appears “toed

in” (red line) due to the prominence of the cervical area of the tooth (yellow arrow).

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6
Q

When viewed facially, only the ———– plane of the canine should be visible

A

mesial

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7
Q

Wedesiretominimizethe forces applied to the mandibular and maxillary

-Horizontal and vertical overlap

A

anterior ridges in centric occlusion. - no contact.

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8
Q

Horizontal and vertical overlap: also done to allow for

A

Createtheappropriate relationship of the maxillary and mandibular anterior teeth during the production of sibilant speech sounds.

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9
Q

For most patients, labial surface of mand incisor should be roughly perpendicular to

A

occlusal plane.

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10
Q

Class II patients mandible travels

A

further anteriorly - need more horizontal overlap

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11
Q

The the cervical of the mand. canines are in the

A

towed out position.

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12
Q

The the cervical of the mand. canines are in the

A

towed out position.

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13
Q

When measuring patient’s existing dentures:

A

– Select best match to shape & size (height, width) of central incisor
– Measure circumference of the six
maxillary anterior teeth
– Use mould guide to select
corresponding mandibular anterior and posterior moulds

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14
Q

Measuring existing dentures exact direction

A

Measure distal of canines to mesial of central incisor. -Measure mesial of 1st PM to distal of 2nd M

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15
Q

Anterior Tooth Placement considerations

A

-Pattern of maxillary ridge resorption
• Average values
• Phonetics
• Smile line- follow contour of lower lip

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16
Q

Average Values: Anteroposterior position

A

On average, the distance from the center of the incisive papillae to the labial surface of the central incisor is 8-10 mm.

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17
Q

Average Values:

Midline & Canine Cusp Tips

A

The incisive papilla can also be used to help locate midline of dental arch.

A line drawn passing in the posterior extent of the papilla will define where cusp tips of canines should be placed

Between the anterior-posterior line and papilla line, it will look like a cross.

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18
Q

Phonetic Determination

A

• Labiodental Sounds “F” & “V” sounds aid in the correct anterior- posterior positioning of the central incisors.

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19
Q

The upper lip contacts the

A

the wet-dry line of the lower lip during speech production of “f” and “v” sounds.

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20
Q

Phonetic malpositioning:

A

F sounds like V or vice versa.

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21
Q

Center of posterior residual ridge:

A

Maxillary lingual cusps should be centered over this line
• Ensures denture stability
• Reduces fulcruming forces during
function

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22
Q

Mand anterior teeth should not

A

be placed beyond the center of the vestibule

• Positioned beyond this point will result in denture instability and undesirable cantilever forces.

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23
Q

Severe arch discrepancies (Class II and Class III-reverse articulation)
•Poor residual ridges (flabby ridges)

both can indicate

A

for non-anatomic teeth.

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24
Q

Posterior Tooth Selection - match size and shade to

A

anteriors.

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25
Q

Posterior teeth - select

A

Select by determining distance from distal

of canine to ascending ramus

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26
Q

Posterior teeth should

A

• Should approximate cervico-incisal height of anteriors selected

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27
Q

• B-L width of teeth can affect

A

tongue space

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28
Q

MAXILLARY blockout areas

A 
-labial surfaces of anterior ridge
 •Frenum areas
•Rugae
•Lateral areas of tuberosities
 •Redundant tissue areas
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29
Q

Mandible blcokout areas

A
  • Retromylohyoid fossa
  • Frenum areas
  • Facial surface of anterior ridge
  • Buccal and lingual regions of residual ridge
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30
Q

As viewed from the lateral perspective the wax rim should project

A

anteriorly to just beyond the outer edge of the land of the cast

31
Q

Wax rim Lingual contours must not

A

impinge on the tongue space

32
Q

The occlusal portion of the wax rim should have the following thicknes

A

a) Molar region - 8 mm
b) Premolar region - 6 mm
c) Anterior region - 3 mm

33
Q

Max width of occlusion wax:

A

Anteirorly 22mm, posteriorly 8mm from deepest part. - roughly 12mm of wax over triad. 15 degree tilt anterior, 45 degree tilt over posterior.

34
Q

The rim should be

A

centered over the crest of the ridge to maximize STABILITY

35
Q

Mand width of occlusion wax:

A

18mm, up to 2/3rds height of RMP. 15degree tilt over anteiror.

36
Q

Amount of max wax showing -

A

women - 1-3mm, men 0-1 mm.

37
Q

Use dental adhesive if

A

tray is slightly loose (can’t do phonetic tests otherwise)

38
Q

Ideal nasolabial angle

A

95deg, with vermillion border showing.

39
Q

Lip length 10-20mm

A

incisal display - 3-4mm

40
Q

Lip length 20-25 mm

A

2mm

41
Q

Lip length 26-30mm

A

1mm

42
Q

Lip length - 30 or greatermm

A

0

43
Q

• Edge of rim touches

A

“wet-dry” junction of lower lip when ‘F’ or ‘V’ sounds

44
Q

Anterior portion of rim must be parallel to

A

inter pupillary line - mesiolateral dimension

45
Q

Transfer midline scribed on maxillary rim to the

A

mandibular rim

- 1-2 mm horizontal overlap b/w maxillary wax rim and mandibular wax rim

46
Q

• Patient is instructed to: (VDR)

A

-“gently bring their lips together, and softly hum”
• “gently lick lips and swallow”

These actions bring the elevator and depressor muscles in equilibrium and the condyles in a neutral, unstrained position.

47
Q

Determining VDR using Phonetics

A

say “mmmmm, emma”

48
Q

IN VDR, there should bve

A

2-4mm space between both rims.

49
Q

Establishing ovd

A

‘Closest Speaking Space’

• Measure difference between VDO & VDO • Sibilant sounds (“s”, “z”, sh”, ch”)

50
Q

Wax rims: occlusion, you want

A

even contact along rims in centric position

51
Q

CR

A

def: maxillomandibular relationship in which the condyles articulate with the thinnest avascular portion of their respective discs with the complex in the anterior-superior position against the shaped of the articular eminencies

52
Q

CR is

A

independent of tooth contact

53
Q

When mounting on articulator,

A

Increase incisal pin +2 to compensate for thickness of centric record

54
Q

Lateral displacement and rotation during function

A

stability

55
Q

Vertical displacement

A

retention

56
Q

vertical placement

A

support

57
Q

Draping of the cheeks over the buccal flanges

A

is essential for peripheral seal. Loss of muscle tonicity & overlapping is common

58
Q

Retromolar pad helps

A

Create peripheral seal

59
Q

Finger stops on mand. impression trays should be

A

20mm by 10mm

60
Q

Maxillary Impression Borders action 1

A

Action: Ask the patient to create suction around a finger and the impression tray handle.
Effect: Labial and Buccal Frena, Labial & Buccal Vestibule

61
Q

Maxillary Impression Borders action 2

A

Action: Ask the patient to create suction around a finger, pucker or pooch their lips and produce a maximal smile line
Effect: Labial and Buccal Frena, Labial & Buccal Vestibule

62
Q

Maxillary Impression Borders action 3

A

Action: Ask the patient to open their mouth wide and then move their mandible side to side to stretch the pterygomandibular raphe and allow the coronoid processes to shape the impression

63
Q

Maxillary Impression Borders action 4

A

Action: Pinch the patient’s nostrils closed and ask the patient to attempt to blow air through their nose. Make sure that the tongue is held down using a mouth mirror. Mark the hard-soft palate junction. OR**

Have the patient pronounce the word “aah” or cough to locate the vibrating line so it can be marked, thereby
identifying the area between the vibrating line and hard palate- soft palate junction

64
Q

Mandibular Impression Borders: actions 1-3

A

Action #1: Ask the patient to create suction around a finger and
the impression tray handle
Action #2: Pucker or pooch their lips and produce a maximal smile line
Action #3: Pronounce the word “Christmas” and the letters “Q” and “U” & pull the lower lip and cheek superiorly over the
impression tray

Effect: Labial, Buccal and Lingual frena, Lip musculature, Buccinator and Masseter muscle

65
Q

Mand impression borders action 4

A

Action: Place a finger on the top of each side of the

impression tray and ask the patient to close the mandible against resistance using one second intervals of applied force

66
Q

Mand impression borders action 5

A

Action: Ask the patient to raise their tongue to the roof of
the mouth, then anterior to vermilion border, and then to the corners of their mouth. Ask patient to swallow (if possible)

67
Q

Class III s sound

A

no retrusion afterward - teeth stay incisor-incisor.

68
Q

• Angle Class II patients:

A

posteriors have similar to class I but anteriors are set with more overbite to match skeletal reality

69
Q

o Angle Class II Div I: may need

A

setup with the same generous overbite/overjet relationship to restore their facial form, dental esthetics and speech

70
Q

Angle class II Div II:

A

with prominent maxilla and generous overbite with a minimal overjet and shortened dental arch will need same as div I setup

71
Q

• Inclination of anterior teeth are vertical or retruded to best match

A

mandibular incisors

72
Q

• Angle Class III combo of prominent long mandible with small retruded maxillae setup

A

entirely different: mandibular incisors incline lingually and distally back from the larger mandible to meet upper teeth which incline outward from small and retruded upper arch
o Set anteriors end-to-end with very light occlusion
o Due to flaring of max incisors, they put too much tension on upper lip musculature and might need to crossbite the posteriors with max buccal cusps positioned lingual to mandibular teeth and enhanced lateral occlusal curvature (Wilson) to accommodate small maxilla/large mandible
o Anteriors are also placed crossbite or underbite

73
Q

The Lingual Look Test

A

• Test to check if teeth fully touch in the lingual/palatal area
o Check on articulator
o Common to have to lift mandibular lingual cusps up and pull max lingual cusps down to achieve desired max lingual cusp to mand central fossae occlusal contacts

74
Q

Completing the Wax-Up For the Try-in Appointment

A

• Tooth set up works best with minimum amt of wax
• Overlooked wax that is not cleaned off will screw everything up
• After bases are fitting fully and accurately, add gingival contours
o Flow molten wax in slight excess to build up secondary gingival and mucosal contours
o Teeth above gingiva need to be clean and free of all wax in order to be held securely and accurately during processing but avoid groove that will trap calculus
o Finish contours with clean lab toothbrush
o Polish with cold soapy gauze

Denture reading exam 1 (3 decks)

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