Card Set Information
Mock State Certification
Air bubbles in a mix of plaster _____ the mixture?
affects the strength of
When working with mercury, a hygiene precaution which must be followed is to?
store scrap amalgam under water
The composition of amalgam includes copper, silver?
tin and zinc
When mixing ZOE for use in a dry socket, a ____ is used?
When making a shellac baseplate, a safety precaution that must be observed is to avoid?
A Class II cavity requires a?
When seating a crown or bridge, the consistency of the cement should be?
thick enough to form a 1/2 inch strand when lifted off the slab
Plaster will emit warmth after mixing because?
of setting reaction
Construction of custom trays calls for what type of resin material?
Custom trays are constructed primarily for the purpose of?
having a tray that fits the patients mouth for final impressions
Wedges are placed to?
stabilize the matrix,insure proper contacts, separate the teeth
Shellac baseplates are used to?
form tissue area of occlusion rims
To take a preliminary impression for a full denture the material used may be?
When taking a preliminary impression, the compound heater temperature should be?
132 degrees F
In a bonding process the composite resins are used together with?
Pit and fissure sealant polymerizes as a result of?
light or self curing
Moisture contamination of amlagam results in?
delayed expansion, internal corrosion, decrease in strength
The proper time to pour alginate impressions is?
The purpose of condencing amalgam is to
strengthen the restoration, adapt materials to the cavity walls, eliminate excess mercury
A safe mercury vapor level in an 8 hour day is?
0.05 mgl m3air
The monomer of the acrylic is the?
When constructing a custom acrylic tray, placing it in warm water will?
speed up polymerization
The main ingredient(s) of reversible hydrocolloid is/are?
water and agar
The polymer of an acrylic is the?
What is a gypsum product?
plaster, stone, investment
One of plasters uses is?
The final setting time of dental stone is?
the model can be separated from the impression
The amount of water used to mix gypsum products is related to?
the irregularity of the gypsum particles
The consistency of a mixed cement is its measure or ability to?
flow under pressure
The monomers used with zinc phosphate cement powders are?
The initial setting time of plaster is?
Impression material may be classified as?
rigid, plastic, and elastic
Food, debris and bacteria is known as?
Water irrigators are used to?
stimulate oral tissues
Disclosing tablets are used to?
A vitamin deficiency that causes many periodontal problems is?
The test that is used to measure the Ph of saliva is?
The periodontal probe is placed between the tissue and tooth surface to?
measure the depth of a pocket
The Snyder test is used to estimate the count of?
A patient's proficiency in oral hygiene skills may be evaluated with a?
The main purpose of dental corrective measures s to?
restore dental health
Dental disease is caused by?
An interdental cleansing aid is?
A recommended concentration of flouride in drinking water is proximately ___ parts per million?
The most acceptable method of gingival massage tooth brushing is?
A thorough dental examination includes?
a soft tissue examination, tooth examination, a radiographic survey
The proper steps used to obtain a Snyder test specimen for a child are?
to swab the tooth surfaces with cotton, stab the swab into medium, break off the swab, cap the tube, and incubate
When measuring the gingival sulcus, the probe is placed?
between the tooth surface and the tissue
Obtaining of a diet record of a patient is to?
have the patients recognize their habits of ingesting food
A gel that is applied to the teeth and has been demonstrated by clinical studies to have a caries preventing affect on teeth contains?
acidulated phosphate flouride
Once plaque has been throughly removed, it will take ___ hours to form again?
Subgingival plaque may be controlled by using a rinse containing?
chlorhexydine gluconate 0.2%
Plaque should be removed?
A deficiency of riboflavin may cause?
Organisms that can live either in the presence or absence of oxygen are?
The most effective way to remove plaque from interproximal sufaces is?
An occlusal dental sealant would not be indicated?
when the tooth has decay
A nonbacterial structure composed of complex sugar protein molecules which are a product of the saliva are?