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Maximum Permissible Dose (MPD) - correct answer highest rate of radiation exposure
Roentgen (R) - correct answer basic unit of exposure to radiation; C/kg
Rad (radiation absorbed dose) - correct answer unit of absorbed radiation; Gy
Rem (roentgen equivalent measure) - correct answer unit of radiation needed to produced
same biological effect of one R; Sv
Erythema Dose - correct answer radiation overdose that produces redness of the skin
Dosimeter - correct answer device to measure the amount of stray/secondary radiation
Lead Barriers, Shields - correct answer device that blocks out scattered radiation
Phantom - correct answer device used for practice in learning radiation-exposure techniques;
Dexter
Express Contract - correct answer Verbal or written words that are agreed on in an established
contract
Liner applicator - correct answer To place calcium hydroxide or glass ionomer in cavity
preparation.
Amalgam plugger - correct answer used to pack amalgam into tooth
Sterilize - correct answer the process where ALL forms of life are completely destroyed. This
includes all microorganisms; bacteria, fungi, viruses and bacterial spores. (Eg - autoclave,
chemical vapor sterilization and dry heat sterilization)
Disinfect - correct answer the process where SOME forms of microorganisms are destroyed. it
does not destroy spores and resistant viruses.
Sanitize - correct answer the process that cleans and destroys FEW microorganisms
Distal - correct answer farthest from the midline
Root Canal Therapy - correct answer process of removing pulp of a tooth and filling it with an
inert material.
palate - correct answer hard and soft tissue forming the roof of the mouth
Broad-spectrum activity - correct answer capable of killing a wide variety of microbes
Bioburden - correct answer any visible organic debris, blood saliva and other body fluids
Unerupted tooth - correct answer a tooth that has not pushed through the gum and assumed
its correct position in the dental arch
quadrant - correct answer 1/2 of one dental arch
,Dental Terminology HOSA 2025 Update |Complete Exam Set Questions And Verified Answers
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abfraction - correct answer loss of tooth surface in cervical area
ameloblast - correct answer enamel forming cells
angle of the mandible - correct answer area from which the ramus ascends on the lower border
of the mandible
apex - correct answer root end of tooth
biteblock - correct answer device used to hold radiation film in mouth for exposure
biteloop - correct answer encircles periapical film
buccinator - correct answer principal cheek muscle
cnaliculi - correct answer small channels or canals may be present in cementum
candidiasis - correct answer infection of mouth, thrush
cantilever bridge - correct answer only one side of device attatched
cheilosis - correct answer inflammation of lips
cingulum - correct answer smooth, convex, or rounded bump on lingual of maxillary anteriors
clasp - correct answer extension of partial appliance that grasps surrounding teeth for support
commisure - correct answer corner of the mouth where the lips meet
complex cavity - correct answer decay involving more than two surfaces of a tooth
compound - correct answer nonelastic impression material used in edentulous impressions
condyloid - correct answer posterior growth on ramus of the mandible
coping - correct answer thin covering placed over remaining tooth surface
core buildup - correct answer use of synthetic material to enlarge tooth core area to provide
support for a crown
cortical plate - correct answer outer bone layer growth of alveolar bone
crepitus - correct answer grinding, joint abrasion
cuspid - correct answer third tooth posterior of the midline, also called canine, eye tooth
cuticle - correct answer tissue layer covering tooth surface
Nasmyth's membrane - correct answer tissue layer covering tooth surface
denticle - correct answer small tooth growth, pulp stone
embrasure - correct answer v-shaped tooth gap between contact area and gingival crest
,Dental Terminology HOSA 2025 Update |Complete Exam Set Questions And Verified Answers
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fontanel - correct answer baby's soft spot literally "little fountain"
genioplasty - correct answer plastic surgery of the chin or cheek
gnarled enamel - correct answer enamel rods twisting and curving within enamel tissue
gomphosis - correct answer holding and anchoring action of a tooth in its socket
Hawley appliance - correct answer orthodontic appliance to maintain space after correction
heterodont - correct answer teeth of various shapes
hyoid - correct answer small bone in neck area "Adam's apple"
incipient caries - correct answer beginning decay
incisor - correct answer cutting, anterior tooth
lacuna - correct answer small open space in cementum
lamellae - correct answer developmental imperfections of the enamel extending to the dentin
Maryland bridge - correct answer bridge cemented to adjacent teeth
masseter - correct answer muscle of mastication that closes the mouth
mentalis - correct answer chin muscle that moves chin tissue and raises the lower lip
parotid - correct answer largest salivary gland located near the ear
pontic - correct answer artificial tooth part of a bridge
prophy - correct answer professional tooth cleaning
ptosis - correct answer drooping or sagging of organ, "witch's chin"
resin - correct answer plastic type material used for dental appliances
resorption - correct answer removal of hard tooth surface and degeneration of root tissues
retromolar
Sharpey's fibers - correct answer periodontal ligaments that attatch and hold the tooth
simple cavity - correct answer decay on only one surface
smile line - correct answer amount of tooth space viewed when patient is smiling
symphysis - correct answer center of mandible
denture - correct answer an artificial substitute for missing natural teeth
inventory - correct answer an itemized compilation of materials on hand
, Dental Terminology HOSA 2025 Update |Complete Exam Set Questions And Verified Answers
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dosage - correct answer the amount of a medicine administered
stable - correct answer bone and soft tissue closing the space encompassedby the upper
alveolar arch
crevice - correct answer a narrow opening due to a fissure or crack
intubation - correct answer insertion of a tube
mulling - correct answer final step of mixing dental amalgam
infusion - correct answer therapeutic introduction of a fluid into a vein
distention - correct answer a state of dilation
leverage - correct answer mechanical use of a lever
penetration - correct answer ability of radiation to extend down into and go through
substances
malposed - correct answer in an abnormal position
current - correct answer a measure of the number of electrons per second that pass a given
point on a conductor
germicide - correct answer substance capable of killing a wide variety of microorganisms
respirator - correct answer a device for giving artificial respiration
ligate - correct answer to bind or tie with a suture
inspirator - correct answer a form of inhaler or respirator
astringent - correct answer an agent that limits the secretions of glands
hemisection - correct answer complete sectioning through the crown of a tooth
ejector - correct answer a device used to remove debris and fluids; an aspirator
extrusion - correct answer movement of teeth beyond the natural coronal plane
stomatitis - correct answer inflammation of oral soft tissues
deviation - correct answer turning from a regular course
emulsion - correct answer a colloidal dispersion of one liquid in another
sensory - correct answer pertaining to sensation
vasomotor - correct answer causing expansion or contraction of blood vessel walls
flexion - correct answer bending of a joint; opposite of extension