Final Flashcards
An imaginary line around which the mandible may rotate within the sagittal plane.
Transverse Horizontal Axis
(Hinge Axis)
What must the work authorization form have on it?
Cashiers Signature, and (for this course) Stamp
Faculty Signature
What is required on the Tooth Order Form?
- As of now, we still order our own teeth
- Faculty must sign it
- Needs a Cashier’s Signature
What do you include in the Rx section of the form?
Detailed instructions and expecations for the work to be provided
What should never be the mesial-distal inclination of the canine?
NEVER Distal
Also true for the laterals
What mesial-distal angulation gives a SOFT apperance to the laterals and canines?
Mesial
What labial-palatal angulation gives a SOFT apperance to the laterals?
Labial
What should NEVER be the labial-palatal inclination of the lateral?
Palatal
What should NEVER be the labial-palatal inclination of the canine?
NEVER Labial
ALWAYS Palatal
What rotation of the centrals gives a BOLD apperance?
Distal Flare
The centrals should NEVER have what rotation?
Mesial Flare
What rotation of the laterals give the smile a softer apperance?
Mesial flare
What rotation should the Canines NEVER have?
Distal lare
What rotation of the laterals give the smile a bold apperance?
Distal Flare
The labial surface of the Max CI should be how far forward from the center of the incisive papilla?
8mm
The … you make the lateral compared to the central incisor the younger it will look?
shorter (0.5-1 mm)
When determining if you have proper incisal edge position for phonetic concerns you test which sounds?
“F” and “V” sounds and they should touch at the wet dry line of the bottom lip
How can you validate VDO, to insure that you have not violated the closest speaking space?
- Have pt say:
- “S” words
- “CH” and “J” sounds
- Validate that the facial thirds are equal
- Make note of soft tissues
What is the minimum space needed for speaking in VDO?
1 mm
How do you correct an excessive (open) VDO, assuming the maxillary is correct?
- Put the set up back on the articulator
- Reduce the pin setting 1-2mm
- Heat the wax beneath the mandibular teeth and close the articulator
The opposite is true for an inadequate (closed) VDO
What does the pt sign when all parties are satisfied with the esthetics, phonetics, and occlusion of the set up?
“Approval Declaration” on the CD Step Card (yellow card)
What is the purpose of the Posterior Palatal Seal?
To enhance retention and maintain the peripheral seal of the maxillary denture base by compensating for polymerization shrinkage of denture acrylic during processing.
What is the vibrating line the junction between?
Mobile and non-mobile portions of the soft palate
What depth is the post dam carved to on the cast?
1/2 the depth of the amount of depression you are able to make in the glandular tissue
What is the purpose of the dixie cup transfer?
Preserving your face bow articulation record, so that you have it after your casts are destroyed in the investment process
What steps should be completed prior to the delivery appointment?
- Evaluate/Adjust Processed Dentures
- Create Remount Casts
- Remount the Maxillary Cast
When you evaluate processed dentures, what do you do if you find ridges, bubbles, or spicules?
Remove them with an acrylic bur
When you evaluate processed dentures, and the denture base is too thick, which surface do you remove acrylic from?
External Surface
NOT Intaglio
When creating the remount casts, place Siltech putty on the ridge area, extending it to …
2-3mm from the denture periphery
Denture borders should seat on gypsum product, not putty.
What can be used, in conjunction with measuring (perio probe) to evaluate areas of border length?
Disclosing Wax or PIP
- Wax is placed in a syringe (monojet)
- Tempered in a water bath, and applied to the denture border
- Denture is inserted and border molding is completed in the area
- CD is removed and any pressure areas are relieved
When making the new CJRR to remount casts, it is important to ask the pt to close on the back teeth, but to not let what occur?
Do not allow the teeth to contact, it will allow the denture to lift or shift. Hold the mandibular denture in place until the Aluwax is completely set.
What is the temperature of the water bath set to?
130
Do you adjust the denture occlusion on the mounted dentures or in the pts mouth?
On the mounted dentures
When out of the mouth dentures should be where?
in water
What is the ideal palatal thickness?
2.5 - 3mm
What step must be done to allow the acrylic to reproduce what we created with the border molding and impression, after processing?
Seal Baseplate to Cast
How long are the flasks placed into boiling water (212F or 100C)?
5 mins
Do not want to liquefy the wax
What is applied to all gypsum surfaces of the flasked halves, so that the denture base resin does not adhere to the stone or plaster?
Tinfoil Substitute
Avoid the teeth!
What denture base resin do we use?
Lucitone 199
The press is closed to how many pounds of pressure?
3,500 lbs
What area of the mandibular denture aids in its retention?
The concave contour of the flanges
How deep should indexes on the casts be?
2-3 mm
How much space should be between the sides of the impression tray and the tissue?
4 mm
The finished base of the primary casts should be how thick at its thinnest area?
12-13 mm
Trim the vertical walls of the cast to … from the impression surface?
3-4 mm
How wide should the land area be? how high?
2-3mm wide
1-2mm high
The maxillary custom tray should extend laterally … above the depth of the vestibule?
2-3mm
How many layers of baseplate relief wax should be added?
1 layer
What should the thickness of the custom tray be?
2 mm
What should the maxillary custom tray handle be?
- Mimic incisors
- 12-15 degrees
The mandibular custom tray should extend distally to …
cover the retromolar pad
The mandibular custom tray should extend laterally to the …
external oblique line
How much compound should you heat at a time?
1/2 - 3/4 of an inch
How long do you temper the compound in the water bath for, to ensure you don’t burn the pt?
3-5 seconds
What motion do you use when border molding to capture the buccal frenum?
Down/back/forward in a circular motion
What motion do you use when border molding to capture the facial vestibule?
- Pulling the lip down and side-to-side
- “Fish lips” or apply suction
What motion do you use when border molding to capture the Masseteric Notch area (around the retromolar pad)?
Try to close while you push and resist them - this activates the masseter muscle.
What motion do you use when border molding to capture the sublingual crescent areas?
Keep pressure on the stops while asking the pt to “stick out their tongue, lick your upper lip corner to corner.”
What motion do you use when border molding to capture the mandibular lingual areas?
- Keep pressure on the stops
- Touch their tongue as far back and side to side as they can
- Use your finger as a target
How long does the tray adhesive need to dry?
Minimum 10-15 mins
When box molding the master impression the wax should be … below the peripheral roll?
2-3 mm
Boxing wax should be … from the tallest point on the impression.
15 mm
Why do we index our casts?
Laboratory remount - adjust occlusion prior to divesting after processing
Are we trying to capture the muscles in an active or passive state when border molding?
Active
The master impression should have the muscles in a passive state
The Record Base is an interim or permanent (Processed) denture base used to … used for…
support a rim material
Recording and transferring patient records
When making the maxillary occlusal rims where should the mass of wax posteriorly be?
Slightly buccal to the crest of the ridge
Not past more than 1/2 of the width of the vestibule
What are the measurements of the maxillary occlusal rims in the anterior?
Height = 22mm
Width = 4-6mm
What are the measurements of the maxillary occlusal rims in the posterior?
Height = 20-22mm
Width = 8-10mm
What is the angle of the maxillary occlusal rims?
12-15 degrees
When making the mandibular occlusal rims where should the mass of wax be?
Directly centered over the crest of the ridge
Where should the occlusal plane be on the mandibular occlusal rims?
No more than 1/2 - 2/3 up the retromolar pad
What are the measurements of the anterior mandibular occlusal rims?
Height = 18mm
Width = 4-5mm
What are the measurements of the posterior mandibular occlusal rims?
Height = 18mm
Width = 8-10mm
How much incisal edge shows at repose?
2mm
The A-P plane should be parrallel to the …
Ala-Tragus line
Estimated Occlusal Vertical Dimension in an endentulous pt averages between … than the Vertical Dimension of Rest.
2-3mm less
VDR - OVD = Interocclusal Rest Space