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104 Cards in this Set

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  • Back
The stability of the implant overdenture is usually provided by the placement of the implants.
the denture provides the stability
After the implants have been placed and integrated, the healing caps are removed and you have to determine what size of prosthetic head to use. You will use a plastic peiodontal probe to measure the distance from the platform to the top of the tissue. You only want _______ mm of the tissue above the head of the platform.
When placing prosthetic implant heads, you will tighten it by hand 1st and then you will use a wrench to tighten it fully. You want to tighten it to about _____ for our implant overdenture technique.
For a mandibular overdenture, after the implants have been placed, you can place an overdenture AFTER _________ of healing
6 weeks
It has been said that the chewing efficiency for the various forms of implant treatment can be quantified. According to Dr. Faddoul, what level of chewing efficiency will be restored for a patient with 2 implants and an overdenture on the mandible?
As one of your assessments before committing to recommending that implants be placed, you must have a minimum of interocclusal space. That magic # is?
You will need to assess the depth or vertical amount of bone available for use of the implants. The minimum length of implant that we can use is?
As on criteria for success with implant placement, it is very desirable to have the surface of the implant surrounded by strong fibrous tissue.
In the clinic we are using Nobel/Biocare 4.3x13 implant. What is the minimum amount of bone that must surround the implant on all sides?
Physiologically, the endentulous oral cavity is divided into 2 types of surfaces. They are?
Myostatic (tissue fixed in place)
Myodynamic (tissue that Moves)
In selecting teeth for your patient, the most difficulty will arise from trying to select the perfect tooth for the anteriors. There are several sets of numbers on it. One is the mold number, one is the length and width of the central incisor. Below the picture of the maxillary six anteriors are 2 sets of numbers such as 47-51. This stands for?
The width of the anteriors in a straight line and the width of the anteriors curving from canine to canine
In picking out the shade for the patient, several things to look at are: the skin tone, lip color, certainly the gender, but many times what shade selection comes down to is?
Patient Preference
In selecting the posterior teeth, one method is to look at the residual ridge to help determine whether you need teeth with cusps or not. If you have severely resorbed ridge, you would probably select?
Non-Anatomic Teeth
Anatomic teeth have a cusp angulation of?
33 deg
There are two types of teeth that we use in making dentures: pocelain and plastic. The plastic teeth are actually a combination of composite of composite resin and acrylic. The base is made of:
PMMA Polymethylmethacrylic
The quality in the prosthesis which acts to resist forces of dislodgement along the path of placement is defined as?
Which material has a greater wetability?
Heat and pressure cured acrylic
What is the difference in resorption rate between maxilla and mandible?
Mandible resorbs 4x faster
Which material has a greater wetability?
Heat and pressure cured acrylic
Adhesion is the physical attraction of unlike molecules to to each other. An example of BAD adhesion is exhibited in patients with?
When teeth are in occlusion, we refer to this as?
Vertical dimension of occlusion
The physiological rest position, phonetics, esthetics, swallowing threshold and tactile sense refer to?
Physiological Methods for obtaining Vertical Dimension of Rest
When teeth are in occlusion, we refer to this as?
Vertical dimension of occlusion
The physiological rest position, phonetics, esthetics, swallowing threshold and tactile sense refer to?
Physiological Methods for obtaining Vertical Dimension of Rest
You need to make sure that you carve in the PPS. When should this be done?
Right after pouring the Master Cast (probably want to let it set up first though)
On your prescription paper to the lab everything is pretty evident. For the general instructions you have the opportunity to be specific about specific desires. Five of them were given to you to emphasize to the lab. Name them:
Do not polish lingual cusps
Call me if you have questions
For artificial occlusion function where is the primary support for dentures?

a) the peridontium
b) the buccal shelf
c) the palate and remaining alveolar ridge
d) the bone
e) b & c only
d) The BONE
When doing a set up for the denture teeth, you would like to be able to create a bilateral balance, just like with the occlusion of the natural teeth.
It is not "just like" the occlusion of the natural teeth. It is a lingualized occlusion.
Approximately 175 lbs of force can be applied to the natural dentition. With properly made dentures, this same amount of force will normally be applied and tolerated.
Usually, the greater the cusp angle and height of the denture teeth used, the lateral forces will be _______ on the denture bases.

a) increased
b) decreased
c) about the same as with any tooth that is used
The bilateral, simultaneous, anterior and posterior occlusal contact of teeth in centric and exxentric positions describe what?
Bilateral Balance
A processed maxillary denture has somewhat of a tendency to warp in one particular area. Besides having better contact of the actual processing procedure, what else is done to minimize this effect?
Carve the PPS into the master cast
Flat plane or monoplane occlusion does not normally have balance. However, this can be changed to a balanced occlusion by?
It has been shown that dentures with cusped teeth are much more functional than dentures with no particular occlusal form (monoplane).
Should the contour of the cameo be concave or convex?
In our school, what gypsum products do we use to make diagnostic models?
Type II gypsum (Lab Plaster)
In our school, what gypsum products do we use to make casts for processing dentures?
Type III Microstone
In our school, what gypsum products do we use to make casts for crown and bridge work?
Type IV Snap Stone or Silky Rock
In our school, what gypsum products do we use to make casts for partial denture work?
Type IV Snap Stone or Silky Rock
What material do we use to mount edentulous casts to articulator?
Mounting plaster (type I gypsum)
What is the expansion rate for silky rock?
0.09% Silky Rock expasion
What is the expansion rate for Microstone?
0.12% Microstone expansion
What is the expansion rate for Snap Stone?
0.15% Snap Stone Expansion
What is the expansion rate for Mounting Stone?
.09% Mounting Stone expansion
When you make alginate, when should you pour it?
Right away
Another name for the pterygomaxillary notch is?
Hamular Notch
The PPS is usually located near or at the fovea palatinal area. It is advisable to palpate and locate this area, even though you are making only the preliminary impression.
What gypsum product is advisable to use for your preliminary casts?
Type II gypsum
Which gypsum product that we use here at the school has the least amount of expansion?
Silky Rock
In making your preliminary impression we use the syringe and tray method. This is primarily used to capture the peripheral turn areas better than just regular tray alginate.
One such area on the maxilla is:
and the mandible is?
Maxilla: mylohyoid area
Mandible: retromylohyoid space (lateral throat form)
What should you tell your patient to do before the appointment when you have the final impression?
INFORM THE PATIENT TO LEAVE CURRENT DENTURES OUT 12 – 24 HOURS PRIOR TO NEXT APPOINTMENT. This allows the tissues to return to as natural/physiological a shape as possible. Remember that poorly fitting dentures distort the tissues. What good are new dentures that do not fit the physiologic shape of the alveolar ridges? Answer: NONE
What is the best way to combing the water and powder, when mixing alginate?
Pour powder into the water
In creating your custom tray you will place a layer of wax over the entire cast just shy of the outline of the triad base material. What is this called?
Relief Wax
What should the dimensions of the handles on the custom trays be?
2cm x 1.5cm x 0.5cm
In constructing the custom tray you are supposed to draw a blue line and a red line. What does the blue line designate?
The Peripheral Turn
tray you are supposed to draw a blue line and a red line. What does the red line designate?
The depth of the custom tray
What is the distance between the peripheral turn and the depth of the custom tray?
Typodont patient = 1mm
When trimming the triad, which line do you trim it to?
red line = depth of custom tray
In making impressions, the most common reason for having to remake the impression is:
Not Positioning the Tray Properly
What are the objectives of Border Molding?
1)To capture the physiological extent of the peripheral turn of the patient.
2)To support the light bodied impression material as it is carried into the peripheral turn
The wax spacer is placed before contouring the triad for what reason?
1) To keep the impression tray from seating all the way while border molding
2) To create enough space for the light bodied impression material
What is the intaglio surface of the tray on the denture?
The inside or supporting tissue surface
In forming the master cast, it is necessary to have an area of protection for the anatomy. This is called the land area. It should be ____ mm wide and ____mm deep from the peripheral turn to the top of the land area.
2-4mm wide
1mm deep
What is the primary stress area for the mandibular denture?
The buccal shelf
On the maxilla, what is the secondary stress bearing area?
(NOT the hard palate)
How much faster does the mandible resorb than the maxilla?
4x faster
One of the reasons we use the centric relation record is because?
It is a repeatable position
The Vertical Dimension of Occlusion is usually ____ les than the vertical dimension of rest.
What region is the vertical dimension of rest measured in?
The anterior region
After your casts have been retrieved and trimmed, you need to place remount grooves in the bases. Why do you need to place them?
For properly realigning the casts on the articulator after they are removed
When making your wax occlusal rim it is acceptable to measure 22mm on the right lateral region of teh maxillary WOR, 18 mm on the left side of your mandibular WOR.
The maxillary wax occlusal rim is contoured to give you some specific information about your patient. Two main things you are looking for are lip contour and incisal length.
What is the key theme to the neutral zone?
Equalized area where the teeth rest
Because of what we have learned about the neutral zone, you generally would want to shape the cameo surfaces of the mandibular denture to be _____ in shape.
What are the surfaces of the dentures that we need to be concerned with?
a) occlusal surface
b) intaglio surface
c) cameo surface
What is the resorption pattern of the maxilla typically?
Vertical and toward the palate
The horizontal aspect of the seal for the maxillary denture is the ______
The fovea palatinae is usually located?
Slightly anterior to the anterior vibrating line
The posterior vibrating line is usually 2-3 mm posterior to the anterior vibrating line in a class I throat form.
In setting the maxillary anterior teeth, you want to follow a guide formula generally referred to as IMG
In setting the maxillary anterior teeth, the long axis of the teeth should be exactly perpendicular to the horizontal.
In placing the Maxillary anterior teeth you want the overjet of the maxillary anterior to be about?
1.5-2 mm
In looking at the mandibular set up of the anterior you would want to see ____ of the lateral incisors when viewed from the intaglio surface.
The Mid
What are the two categories of sounds that affect our work in prosthetics the most?
After setting the anterior teeth, you have your patient in for the try in. When you have them count from 40-50, what are you looking for?
F&V sounds incisal edge touches middle of lower lip
What category are the F & V sounds
Where is an epulous fissuratum most commonly seen?
Facial aspect of the U or L anterior region
The surface of an epulous fissuratum is usually?
Although we advise our patients to remove their dentures at night, about ______% of denture patients wear them 24 hrs/day
A papillary hyperplasia usually occurs?
In the palate under the maxillary denture
Xerostomia can be caused by?
HIV patient
In setting denture teeth for esthetics and function it is desirable to have cuspid protected occlusion if at all possible
In a balanced occlusion, you ideally would like to have all the teeth touch, not only in centric occlusion but also in all excursion
In a lingualized occlusion you would want to have?
The lingual cusp of the maxillary posterior teeth in the central fossa of the mandibular posterior teeth
The compensating curve is a combination of ____ & ____
What is a monoplane tooth?
Flatter planes
Which appointment does this happen?
Clinic: Diagnosis, prognosis, treatment plan, patient evaluation. If applicable, make
Preliminary impressions in alginate. If you are going to proceed to construct dentures for your patient, make sure that they leave their existing dentures out for 12-24 hours before the next appointment. This is to ensure that the tissue will be “rested” at the time of final impressions. Record in the progress notes.

Lab: Pour impressions in Type II gypsum (lab plaster)
Fabricate Custom impression trays.
1st appt
Which appointment does this happen?
Clinic: Border mold maxillary and mandibular custom impression trays. Make final
impressions in appropriate impression material. Record the Posterior Palatal Seal area in maxillary impression.

Lab: Disinfect the impressions before beading, boxing, and pouring the final impressions.
Pour in Type III stone (Microstone).
Trim and index casts.
Fabricate record bases and wax occlusal rims.
Construct face-bow mounting jig & attach bite fork.
2nd appt
What appt does this happen?
Clinic: Do facebow transfer & mount upper cast on articulator, OR mount lower cast on Stratus articulator with horizontal guide.
Shape maxillary wax occlusal rim for lip contour and incisal length.
Measure VDR, VDO.
Shape mandibular rim.
Register Centric Relation with interocclusal recording material (Regisil, etc.)
Select Anterior teeth (shape, size and shade) Posterior teeth may be selected after casts are mounted.
Have your patient arrange to bring in relative or close friend for next appointment. (VERY IMPORTANT!)

Lab: Mount opposing cast to existing mounted cast.
Select posterior teeth.
Set upper anterior teeth first, then lower anterior teeth.
Refine wax ready for try in with patient.
3rd appt
What appt does this happen?
Clinic: Try in of upper and lower anterior teeth. Include patient’s friend / relative in
decision process. Listen to comments and alter set up where appropriate. If another appointment will be needed for the final try in, make sure that trusted friend / relative will return with your patient for final judgment before denture processing.

Lab: if time permits, set lower and upper posterior teeth and complete try in (Usually this
is not the case and setting the posteriors will need to be done in preparation for the next appointment).
Complete posterior set-up, refine wax for final try in at the next appointment.
4th appt
What appt does this happen?
Clinic: Final try in of dentures. Final O.K. for processing from both your patient and
his/her “critiquer”.

Lab: Refine waxing, prepare laboratory prescription, send to lab for processing.
When case returned, check over thoroughly before you see your patient.
5th appt
What appointment does this happen?
Clinic: Place and adjust dentures.
Give “patient instructions”, what to expect, how to care for them, etc.
Make 24 hour check appointment
6th appt
What appt does this happen?
Clinic: Check for “sore spots”, occlusion, speech, etc.
Make 1 week check appointment, but advise your patient that if they need to see you before then, to call and come in.
7th appt
What appt does this happen?
Clinic: Check for everything. If all O.K…..move on to your next project.
Make tentative follow-up appointment for approximately 1 year.
8th appt