colloid
is a gel or sol substance with its particle suspended in a water-based medium
border molding
is the process of using fingers to achieve a closer adaption of the edges of an impression
elastomeric
impression material has elastic properties and its made from rubber
base
a foundation or basic ingredient of a material is
centric
is to have it centered, such as a maxillary teeth centered over the mandibular teeth
agar
is a gelatin-type material derived from seaweed
syneresis
is the loss of water, which causes shrinkage
tempering
is a way of bringing a material to a desired temperature and consistency
viscosity
describes a property if fluids with a high resistance to flow
alginate
is the material of choice in dentistry for preliminary impression
hysteresis
is an transform a material from one physical state to anther
hydro-
means water
occlusal registeration
is a reproduction of someone's bite with the use of wax and elastomeric material
catalyst
is a substance that modifies or increases the rate of a chemical reaction
imbibition
is the absorption of water, which causes an object to swell
negative reproduction
an impression would be considered an
preliminary and bite registration
of the three classifications of impressions, which of theses could be an expanded function for the certified dental assistant
bite registration
which impression would be used by the dental lab tech for determining occlusal relationship
quadrant
which type of stock tray would be selected and prepared to cover half of an arch
perforated
which type of impression tray allows the impression material to mechanically lock on
custom
which type of tray is constructed to fit in the mouth of a specific patient
utility wax
would be used to extend the length of a tray to accommodate third molars
seaweed
the organic substance of hydrocolloid material is
3 scoops of powder to 3 measures of water
powder/water ratio for a maxillary preliminary impression
the patient has a strong gag reflex
why would you select a fast set alginate when taking a preliminary impression
water
hydro means
alginate
irreversible hydrocolloid material is also referred to as
mixing bowl
on or what is irreversible hydrocolloid material mixed
conditioning bath
where would a reversible hydrocolloid material be placed prior to taking the impression
final and bite registration
elastomeric materials are intended for what type of impression
paste, cartridge, and putty
how is an elastromeric material supplied
light body
which viscosity of a final impression material is applied first to the prepared tooth or teeth
rubber base
another name for polysulfide is
extruder with tip
how is the light-body impression material applied during the final impression procedure
spatula and pad
what additional method can be used to mix final impression material instead of using an extruder
baseplate wax
is the material universally used for taking a bite registration
gauze
what type of tray is most commonly selected when zinc oxide-euqenol bite registration material is used
warmed
baseplate wax is ____ before being placed in the patient's mouth for a bite registration
readying the tray with heavy-body material
while the dentist is dispensing the syringe material around the tooth, what should the dental assistant be doing during a final impression procedure
rinsed, disinfected, wrapped in a moist paper towel, and placed in a precautionary bag
a preliminary impression is ______ before being transported to the lab for pouring up
Calculus
is a hard mineralized deposit attached to the teeth
Oral prophylaxis
is the complete removal of calculus, debris, stain, and plaque from the teeth
Clinical crown
the portion of the tooth that is visible in the oral cavity
intrinsic stains
occur within the tooth structure and may not be removed by polishing
extrinsic stains
occur on the external surfaces of the teeth and may be removed by polishing
fulcrum
is a position that provides stability for the operator
rubber cup polishing
is a technique used to remove plaque and stains from the coronal surfaces of teeth
to remove stains and plaque
what is the purpose of coronal polishing
removal if calculus and debris
an oral prophylaxis includes____
to polish only teeth with stain
what is the purpose of selective polishing
extrinsic
stains that may be removed from the surfaces of the _____
intrinsic
stains that cannot be removed from the surfaces of the ______
rubber cup polishing
which is the most common technique for stain removal
pen grasp
which grasp is used to hold the hand piece
to provide stability to the head
what is the purpose of a fulcrum
not to traumatize the tissue
what precaution should be taken when one is using a bristle brush
distal surface of the most posterior
on which tooth surface should coronal polsihing begin
it can cause frictional heat
what damage can result from using the prophy angle at high speed
chin downward
how should the patient's head be positioned for access to the maxillary anterior teeth
periodontics
the dental specialty that deal with the diagnosis and treatment of diseases of the supporting tissues for the teeth
periodontists
is a dentist with advanced education in the specialty of periodontics
periodontal pocket
is a deepening of the gingival sulcus beyond normal, resulting from periodontal disease
periodontal dressing
a surgical dressing that is applied to the surgical site for protection, similar to a bandage, is a
mobility
movement of the tooth in its socket
bleeding index
method of scoring the amount of bleeding present
periodontal explorer
is a type explorer that is fine, thin, easily adapted around root surface
ultrasonic scaler
is a device used rapid calculus removal that operates on high-frequency sound waves
osseous surgery
is preformed to remove debris in bone
gingivectomy
is the surgical removal of diseased gingival tissues
gingivoplasty
a type of surgery in which the gingival tissues are reshaped and contoured
osteoplasty
type of surgery in which bone is added, contoured, and reshaped
ostectomy
type of surgery that involves the removal of bone
laser beam
a highly concentrated beam of light
periotomes
used to cut periodontal ligaments for atraumatic tooth extraction
furcation probe
used to measure horizontal and vertical pockets depths for multirooted teeth in furcation areas
referral by their general dentist
how do patients most often seek periodontal care
pocket readings, furcations, and tooth mobility
what information is included in periodontal charting
a slight amount
should teeth have ant mobility
bitewing
type of radiograph is especially useful in periodontics
scaler
which instrument is used to remove calculus from the supragingival surface
curette
which type of instrument is used to remove calculus from the subgingival surfaces
to provide tactile information and to locate calculus
what is the purpose of explorers in periodontal treatment
universal
a type of curette with two cutting edges is a
to mark bleeding points in the gingival tissue
what is the purpose of a periodontal pocket marker
sound waves
how do ultrasonic scalers work
patient with demineralization, narrow periodontal pockets, and exposed dentin
what oral conditions contraindicate the use of an ultrasonic scaler
no
should an ultrasonic sclaer be used on a patient with a communicable disease
prophy
what is the more common term for a dental prophylaxis
dentist and hygienist
who can perform a dental prophylaxis
gingivectomy
is a surgical periodontal treatment
tetracycline
what drug is often used for the treatment of periodontitis, juvenile periodontitis, and rapidly destructive periodontitis
Smear layer
the ____ is a very thin film of debris on newly prepared dentin
Thermal
refers to using, producing or caused by heat
Hybird
a ____ is a material that produces a similar outcome to its natural counterpart
Insulating
is a method of preventing the passage of heat or electricty
Ethching
is the process of opening or removing enamel rods with the used of an acid product
polymerization
the process of bonding two or more monomers is
eugenol
a liquid made from clove oil and selected for its soothing effect
desiccate
to _____ means to remove all moisture from an item
micromechanical
refers to minute cuttings of a preparation that allows the union of a dental material and tooth structure
obliterating
the process of complete removal
sedative
some dental materials are designed to have a _____ effect, which is soothing
protect the pulp from any type of irritation
the purpose of a dental liner is to
Dentin
calcium hydroxide is placed on what tooth structure
replaces the need for a dental sealants
is not one of calcium hydroxide's characteristics
resin
the key ingredient in varnish is
varnish
supplemental material is contraindicated under composite resin and glass ionomer restorations
desensitizer
another name for dentin sealer is
dentin tubules
what does the dental sealer seal
protect the pulp from thermal shock
an insulating base is placed to
soothing
what effect does eugenol have on the pulp
pulpal floor
a base is placed in or on the _____ in a cavity preparation
condenser
what instrument is selected to press a base into the cavity preparation
bond restorative materials to the tooth structure
the purpose of a dental bonding material is to
orthodontic brackets and sealants
is/ are an example(s) of a enamel bonding procedure
smear layer
what is removed from tooth structure before a bonding material is placed on dentin
liner, base, dentin sealer, bonding system
sequence recommended for the application
restoration
the dentist will place a direct ____ to replace decayed tooth structure
cavity wall
is an internal surface of a cavity preparation
retention form
the dentist will place ____ within a cavity preparation to help retain and support the restorative material
diastema
an open space between tooth #8 and #9 is termed what
Veneer
is a thin layer of restorative material used to correct the facial surface of a tooth
Cavity
another term for decay
convenience form
is the cavity preparation step that allows the dentist easier access when restoring a tooth
pulpal wall
is an internal wall of the cavity preparation that is perpendicular to the long axis of the tooth
outline form
is the design and specific shape of the cavity preparation used by the dentist to restore a tooth
operative dentistry
common term used to describe restorative and esthetic dentistry
line angle
junction of two walls in a cavity preparation forms
axial wall
is an internal wall of a cavity preparation that runs parallel to the long axis of the tooth
operative dentistry
restorative dentistry is referred to as
cavity
another term for decay
cavity preparation
process of removing decay is known as
pulpal floor
which wall of the cavity preparation is perpendicular to the long axis of the tooth
occlusal surface, buccal pit of posterior teeth, lingual pit of anterior teeth
where would you find a Class I restoration in the mouth
two
what is the minimum number of surfaces a class II restoration could involve
tooth #13
which tooth could receive a class II restoration
composite resin
what restorative material would be set out for a class IV restorative procedures
dental dam
what kind of moisture control is recommended for class III and IV procedures
older adults
what population has a higher incidence of class V lesions
health of a tooth, waiting for a permanent restoration, financial reasons
why might an intermediate restoration be placed
facial
what tooth surface would receive a venner
direct composite resin and indirect porcelain
types of veneers placed are
extrinsic strains, aged teeth, and intrinsic strains
indications for tooth whitening are
a thermoplastic tray
is used to hold tooth-whitening gel on the teeth
hydrogen peroxide
the major component of a tooth-whitening strip is
hypersensitivity
what adverse effect may a patient experience during tooth whitening
Class II
what classification of tooth preparation is an MOD on tooth #14
Class I
what classification of a tooth perparation is a lingual pit on a tooth #8
Class II and III
which classification would require the use of a matrix system
Galvanic
a(n) ______ reaction is the effect of an electrical shock that results when two metals touch
Ceramic
a type of dental restorative material that is nonmetallic, is resistant to heat and corrosion, and resembles clay is ______
Cured
for a material to become hardened or set, it is said to be_____
Palladium
is a soft, silvery white metallic chemical element that resembles platinum
Restorative
is a term used to bring a tooth or teeth back to their natural appearance
Pestle
an object within the amalgam capsule used for pounding or pulverizing
Porcelain
is a solid white, translucent ceramic material made by firing pure clay and then glazing it
Esthetic
an artistically pleasing and attractive appearance is said to be ______
Gold
is a soft, yellow, corrosion-resistant metal used in the making of indirect restorations
Viscosity
the property of a liquid that prevents it from flowing easily is the _____
Amalgam
is a mixture of alloys triturated with mercury to produce a restorative material
Auto cured
refers to how a dental material hardens or sets by means of a chemical reaction
Microleakage
a(n) _____ is a minute area where moisture and contaminants can enter
Alloy
a(n) _____ is a combination of two or more metals
Retention
is the means of preparing a tooth surface for retaining or holding something in place
Spherical
something that is said to be round
Strain
is the distortion or change produced by stress
Stress
an internal resistance to an externally applied by force is referred to as ____
Adhere
to bond or attach two items together is to ____
Filler
is an inorganic material that adds strength and other characteristics to composite resins
ADA
which professional organization evaluates a new dental material
Compressive stress
what type of reaction does a dental material undergo when a person is chewing
Contraction and expansion
what happens to a dental material when it is exposed to extreme temperatures of hot and then cold
Salt within saliva and touching of two metals
which is an example of how galvanic action can occur
By chemical reaction
how does an auto-cured material harden or set?
Silver, Tin, Copper, and Zinc
Select the correct makeup of the alloy powder in amalgam
Esthetics
Why is dental amalgam not placed in anterior teeth
Strength and Corrosion resistance
most amalgams have a high copper content. What does copper provide to amalgam restorations?
Down the sink
Where are amalgam scraps disposed of
Amalgamator
What is used to triturate capsulated dental materials
BIS-GMA
the term commonly used to refer to dimethacrylate is____
Macrofilled
Which filler type of composite resin has the strongest makeup and has been used most commonly for posterior restorations
Depth or extent of restoration
in light-curing of composite resins, which factor can affect curing time of the material
Shade guide
what is used to determine the color of composite resin material for a procedure
use of a rubber cup and polishing paste
the final step in finishing a composite resin is ____
intermediate restorative material
the acronym IRM stands for
IRM
what temporary restorative material would be selected for a class II cavity preparation
Acrylic resin
which material would be selected for the fabrication of provisional coverage
gold, palladium, and platinum
the three noble metals used in making indirect restorations
indirect restorations
what type of restorations is always made in
a dental lab setting
...
Celluloid and mylar
_____ and _____ are names for a clear plastic strip that is used to provide a temporary wall for the restoration of an anterior tooth
Overhang
improper placement of the wedge can cause excess restorative material to extend beyond the cavity margin, resulting in a/an _____
Cupping
is a term used when restorative material becomes concave from improper wedge placement and not being contoured properly
Wedge
a(n) ____ is place in the embrasure of a Class II, III, and IV preparation to provide the contour needed when being restored
Matrix band
a(n) ____ acts as a temporary wall for a tooth structure during restoration of the proximal contours and contacts to their normal shape and function
Sectional matrix
a(n) _____ is a small, oval matrix system made of a polished stainless steel that can be used for posterior amalgam and composite materials
Auto matrix
the ___ is a matrix system designed to establish a temporary wall without the use of a retainer
Tofflemire retanier
the ___ is commonly used to hold a matrix band in placed during a Class II restoration
II
which classification would require the use of a matrix system
matrices
the plural would for matrix is ____
universal retainer
which item would be used to hold a posterior matrix band in position
gingival
in what direction is the smaller circumference of the posterior matrix band positioned when placed properly
Burnisher
which instrument would be selected to thin and contour a matrix band for placement
Wedge
what additional item is placed in a posterior matrix system to reestablish proper interproximal contact of the newly placed material
AutoMatrix
which would be an alternative to the universal retainer/ matrix system
cupping and overhang
improper wedge placement can result in
Celluloid and Mylar strip
another term for a clear matrix is_____
Dental sealant
resin material applied to the pits and fissure of teeth is a(n) ____
polymerization
is the process of changing a simple chemical into another substance that contains the same elements
Self-cure
a type if material that is polymerized by chemical reaction is ____
light-cured
a type of material that is polymerized by a curing light is ____
microabrasion
a technique used to open fissures before sealant placement is ___
unfilled resin
is a sealant material that does not contain filler particles
microleakage
is microscopic leakage at the interface of the tooth structure and the sealant or restoration
acrylate
is a salt or ester of acrylic acid
sealant retention
the sealant firmly adheres to the tooth surface because of _____
prevent decay in pits and fissure of teeth
the purpose of dental sealants is to ______
fluoride is less effective in these areas and these areas are difficult to clean
why are pits and fissures susceptible to caries
No
are sealants the only preventive measure used
polymerization, light curing, and self curing
ways for sealant materials to harden
it is more difficult to evaluate
why is clear sealant material less desirable
there is no difference
what is the difference between filled or unfilled sealants with regard to retention rates
in pits and fissure
sealants are placed____
18 to 36 months
what is the range of shelf life of sealant materials
keep the etchant off the soft tissue and have the patient wear eye wear
what patient safety precautions should be considered when one is placing etchants
moisture control
main cause of sealant failure