Where would the dental laboratory be located in a dental office ?
Separate space or part of the sterilization center
What speciality practices might have more extensive laboratory Set up ?
Orthodontics , pediatric dentistry , and prosthodontics
What is the example of a contaminated item in the dental laboratory ?
An impression or dental appliance
What piece of equipment is used to grind away plaster or stone
Model trimmer
What piece of equipment does dentist use to determine centric relation on a diagnostic model ?
Articulator
What is the most common wax spatula size used in the laboratory ?
#7 wax spatula
What is another term for dental model
Study cast
What dental materials are used to make dental models ?
Gypsum products
What are the three forms of gypsum products ,?
Plaster , stone , high-strength stone
What is the water to powder to ratio of plater ?
100 g powder to 45-50 ml water
When mixing gypsum materials , do you add the powder to the water or water to powder ?
Powder to water
In what are gypsum materials mixed ?
Specialized rubber bowl
What Are the two parts of dental model ?
Anatomic and art portions
When pouring an impression , where in the maxillary impression do you begin to place gypsum material?
Beginning in the palatal area and the lost tooth
How long should you wait before you separate the model from impression ?
45 to 60 minutes
Which of two models ( maxillary or mandibular ) do you begin measuring and trimming first ?
Maxillary model
What are on the maxillary and mandibular model is trimmed differently ?
Anterior portion
What should be placed between the two models when one is trimming them together ?
Wax bite
Of the three types of custom trays discussed , which technique uses a hazardous material in the fabrication of the tray ?
Acrylic resin trays
Which type of custom tray is made form a vital bleaching procedure ?
Vacuum-formed tray
In which two forms is acrylic resin supplied ?
Powder and liquid
Which type of material is used for vacuum-formed custom tray ?
Thermoplastic resin
What is the purpose of a spacer ?
Create room in a tray
How are undercuts corrected on a model when custom tray is prepared ?
Filling in with wax or molding material
What type or wax could be used to form a wall around preliminary impression when pouring it up ?
Boxing wax
To extend an impression tray , what type of wax would you use ?
Utility wax
What type of wax would you use to obtain a patient's bite registration ?
Bite registration wax
What is the most common wax used to create a pattern for indirect restoration ?
Inlay casting wax