Used to remove air from the mix of plaster or stone and to aid in the flow of material when a diagnostic model is poured.
What is a vibrator used for?
100
Study Casts
What is another term for a dental model?
100
-Tray must be sufficiently rigid to hold and support materials during placing and removal.
- Tray must fit and adapt well to the arch and must maintain patient comfort without impinging on surrounding tissues.
- Tray must provide accurate adaptation to an edentulous or a partially edentulous arch.
What are some criteria for creating custom impression trays?
100
_ Pattern
_ Processing
_ Impression
Classification of waxes?
100
The vertical indicator rod must be align with the patient's facial midline.
When taking a Face-Bow Registration how should be align the vertical indicator rod?
200
Used for the repair of crowns, dentures and appliances, as well as for the cementation of crowns, bridges, and inlays.
What is a sandblaster used for?
200
- Diagnosis for planning a fixed o removable prosthetic device.
- Diagnosis of orthodontic treatment.
- Visual presentation of dental treatment?
- Creation of orthodontic appliances.
- Making of mouth guards.
Dental models are used for?
200
Vacuum-Formed Thermoplastic Resin
Which type of custom tray is made for a vital bleaching procedure?
200
Casting Wax
What is the most common wax used to create a pattern for an indirect restoration?
200
Preparing the models by soaking them in a a bowl of water for at least 5 minutes.
What is the first step when trimming dental models?
300
# 7
What is the most common wax spatula size used in the laboratory?
300
100 g -------------- 45 to 50 ml water
What is the water-to-powder ratio of plaster?
300
Filling the undercuts with wax or other molding material.
What is the first step in cast preparation (creating a custom impression Tray)?
300
Boxing Wax
What type of wax could be used to form a wall around a preliminary impression when pouring it up?
300
Use a gentle stream of air to remove excess moisture from the impression.
What is the first step when preparing an impression to be poured?
400
Face Bow
What piece of equipment does the dentist use to determine centric relation on a diagnostic model?
400
The mix will be thin and runny and will take longer to set. this creates a model that is considerably weaker.
What happens when too much water is used?
400
Used to prevent the tray from seating too deeply onto the arch or quadrant. An edentulous tray requires a minimum of four.
What are spacer stops used for?
400
Used to record the occlusal rims for the initial arch form, for setting denture teeth, and for denture wax-up.
What is Baseplate wax used for?
400
No longer than 2 minutes is the the mixing time.
How long should be the mixing and vibration process of the plaster?
500
Model Trimmer
What piece of equipment is used to grind away excess plaster or stone?
500
Dental Plaster. Produces the weakest of the three forms of study model.
Which gypsum material require the greatest quantity of water? What does this mean?
500
It is hard and can no longer be shaped, and the heat has diminished.
What happens when the self-curing resin has reached final set?
500
Mouth guard
When constructing a ___________, you will use a heavier-gauge, flexible plastic that does nos require a spacer but does require an attachment for the strap?
-- impression tray
-- provisional coverage
-- mouth guard
500
Diagnostic model
Thermoplastic resin material
crown and bridge scissors
Vacuum former
What Custom Tray Procedure use these equipment and supplies?
- Light-Cured
- Acrylic Resin
- Vacuum-Formed