Dental Materials and Lab Procedures Final

What causes air bubbles in a model

Which type of reversible hydrocolloid material is the most viscous

What are the three curing stages of impression materials

Which portion of the maxillary impression tray should be seated in the mouth first

Which impression material is used when an extremely accurate final impression is essential

How is alginate impression disinfected

Which of the following gypsum products has the lowest powder to water ratio

Which instructions would be given to a patient obtaining a bite registration

Impression trays should be deep enough to allow __mm of material between the tray and the teeth

Elastomeric materials use automix. Extruder gun insert is dual cartridge with catalyst and base

When constructing custom trays it is best to remove excess material with a __after it has cured

Which item is used to polish/trim custom trays, dentures, and indirect restorations

Which type of elastomeric material has the highest viscosity

Why would a dentist request preliminary impressions

Impression trays are rigid for all of the following reasons except to

Which type of baseplate wax is softest

What is the purpose of the calcium sulfate in impression alginate

What should be done to an impression before pouring

In minutes, how long should one wait before removing a model from an impression after pouring

After fabrication when can a self cured resin custom tray be used

How will water temperature of 80° F affect an alginate mix

Which of the four types of elastomeric materials has the best dimensional stability

Custom impression tray should maintain __mm of impression material between itself and the teeth

What is working time of normal set alginate impression material

Which type of wax is preformed with a thin sheet of aluminum foil between the layers

Water should be running through a model trimmer

Which of the following impression materials can be referred to as bite registration

Taking a facebow registration, the vertical indicator rod should be aligned with which landmark

What position should EFDA use while taking mandibular and maxillary impressions

How many milliliters of water should be mixed with 100 grams of high strength dental stone

Light cured resin can be used to make trays for which types of impressions

Which material is the most durable for occlusal bite registration

How is a stock impression tray prepared for an elastomeric impression

Alginate impressions must be poured within __so that distortion does not occur

The __is the measurement of where the teeth are positioned when the joins are aligned correctly

A trimmed maxillary model will be __at the anterior and __at the mandibular anterior

What are three classifications of impressions used in dentistry

How should the patient bite when positioning the bite fork during a face bow registration

Which irreversible hydrocolloid material is used most widely for preliminary impressions

An advantage of having lab equipment and trained personnel in a dental office

Where should alginate and elastomer impressions be disinfected

How are alginate impressions removed from the mouth

What does the term syneresis mean as it relates to alginate impression

Which material is one of the most popular impression materials used for bite registration

The shelf life of alginate material is approximately __months

What type of impression tray is required with reversible hydrocolloid impressions

Legally, who can take final impressions

The first step in making a custom tray is to

Which form of gypsum product is used for the creation of dies

What can be done to alleviate the gag reflex when taking alginate impressions

What percent relative humidity is preferred for storing impressions

What are preliminary impressions used to make

Used to extend the length or depth of the borders of an alginate impression tray

Which technique listed would be incorrect when pouring an impression

How should alginate material be loaded into a maxillary impression tray

What device holds the maxillary and mandibular models in an occlusal relationship

A model consists of the __portion, represents the teeth and the __portion which forms the base

An impression is positive reproduction. The model created from the impression is negative.

Which factor should be examined when evaluating the quality of an alginate impression

Which listed criteria would not be acceptable on an alginate impression

When would a light gauge, vacuum formed resin material be used

How should light-cured resin tray material be cured

How should a plaster mix not be manipulated

What term is used when an alginate impression takes up water

Vacuum former is utilized to conform a sheet of which of the following types of resin material

Material that should be used if a durable impression material is needed for bite registration

Which type of impression tray covers the anterior portion of the dental arch

How will gypsum material be affected if additional powder is added after mixing has begun

How are elastomeric impression materials mixed

Before constructing a light cured tray, what would be painted on the model