HOSA DENTAL STUDY EXAM GUIDE 2025/2026 QUESTIONS
AND ANSWERS GRADED A+
✔✔palpation - ✔✔act of feeling with the hand or fingers
✔✔infusion - ✔✔therapeutic introduction of a fluid into a vein
✔✔distention - ✔✔a state of dilation
✔✔leverage - ✔✔mechanical use of a lever
✔✔penetration - ✔✔ability of radiation to extend down into and go through substances
✔✔activate - ✔✔to adjust an appliance so that it will exert effective force on the teeth
and jaws
✔✔malposed - ✔✔in an abnormal position
✔✔radiation - ✔✔process of radiant energy emission
✔✔current - ✔✔a measure of the number of electrons per second that pass a given
point on a conductor
✔✔broach - ✔✔an instrument used to engage dental pulp for extirpation
✔✔canine - ✔✔one of the four pointed teeth in humans; cuspids
✔✔adhesion - ✔✔condition in which a material sticks to itself or another material
✔✔germicide - ✔✔substance capable of killing a wide variety of microorganisms
✔✔ostectomy - ✔✔excision of all or part of a bone
✔✔respirator - ✔✔a device for giving artificial respiration
✔✔foramen - ✔✔a natural opening in a bone or structure
✔✔articulate - ✔✔to place in a connected sequence
✔✔ligate - ✔✔to bind or tie with a suture
✔✔addiction - ✔✔the state of being addicted
,✔✔allergy - ✔✔a hypersensitivity reaction of the body to an allergen
✔✔mortality - ✔✔death rate
✔✔linkage - ✔✔connection between two or more objects
✔✔inspirator - ✔✔a form of inhaler or respirator
✔✔duct - ✔✔a small passage
✔✔palsy - ✔✔synonym for paralysis; e.g., cerebral palsy
✔✔sedation - ✔✔the act or process of calming
✔✔temperature - ✔✔the degree of sensible heat or cold
✔✔Cassette - ✔✔A lightweight container in which x-ray films are placed for exposure to
radiation
✔✔Stimulant - ✔✔Agent that causes increased activity
✔✔Lingual - ✔✔Pertaining to the tongue
✔✔Biteplane - ✔✔A removable appliance that covers the occlusal surface of the teeth
to prevent twit articulation
✔✔fabrication - ✔✔construction; making a restoration
✔✔gangrene - ✔✔death of tissue en masse
✔✔incisal - ✔✔relating to the cutting edge of the anterior teeth, incisors or canines
✔✔porosity
(po-ros' i-te) - ✔✔presence of pores with a structure
✔✔template - ✔✔a pattern or mold
✔✔phobia - ✔✔a specific hysterical fear
✔✔dilation - ✔✔the act of stretching or dilating
✔✔astringent - ✔✔an agent that limits the secretions of glands
, ✔✔humectant - ✔✔substance that prevents moisture loss
✔✔operatory - ✔✔the room in which the dentist performs professional services
✔✔prescription
(pre-skrip'shun) - ✔✔treatment plan or medical recipe
✔✔minim - ✔✔an apothecary unit of volume
✔✔embrasure - ✔✔space between the curved proximal surfaces of teeth
✔✔hemisection - ✔✔complete sectioning through the crown of a tooth
✔✔silica - ✔✔quartz; used to make up dental porcelain
✔✔ejector - ✔✔a device used to remove debris and fluids; an aspirator
✔✔extrusion - ✔✔movement of teeth beyond the natural coronal plane
✔✔lipoma - ✔✔a benign fatty tumor
✔✔refractory - ✔✔pertaining to the ability to withstand high temperatures used in
certain dental laboratory procedures
✔✔stomatitis - ✔✔inflammation of oral soft tissues
✔✔deviation - ✔✔turning from a regular course
✔✔emulsion - ✔✔a colloidal dispersion of one liquid in another
✔✔microorganism - ✔✔minute living organisms
✔✔sensory - ✔✔pertaining to sensation
✔✔surfactant - ✔✔a surface-active agent
✔✔vasomotor - ✔✔causing expansion or contraction of blood vessel walls
✔✔necrosis - ✔✔death of a cell or group of cells
✔✔function - ✔✔the normal or special action of a part
✔✔flexion - ✔✔bending of a joint; opposite of extension
AND ANSWERS GRADED A+
✔✔palpation - ✔✔act of feeling with the hand or fingers
✔✔infusion - ✔✔therapeutic introduction of a fluid into a vein
✔✔distention - ✔✔a state of dilation
✔✔leverage - ✔✔mechanical use of a lever
✔✔penetration - ✔✔ability of radiation to extend down into and go through substances
✔✔activate - ✔✔to adjust an appliance so that it will exert effective force on the teeth
and jaws
✔✔malposed - ✔✔in an abnormal position
✔✔radiation - ✔✔process of radiant energy emission
✔✔current - ✔✔a measure of the number of electrons per second that pass a given
point on a conductor
✔✔broach - ✔✔an instrument used to engage dental pulp for extirpation
✔✔canine - ✔✔one of the four pointed teeth in humans; cuspids
✔✔adhesion - ✔✔condition in which a material sticks to itself or another material
✔✔germicide - ✔✔substance capable of killing a wide variety of microorganisms
✔✔ostectomy - ✔✔excision of all or part of a bone
✔✔respirator - ✔✔a device for giving artificial respiration
✔✔foramen - ✔✔a natural opening in a bone or structure
✔✔articulate - ✔✔to place in a connected sequence
✔✔ligate - ✔✔to bind or tie with a suture
✔✔addiction - ✔✔the state of being addicted
,✔✔allergy - ✔✔a hypersensitivity reaction of the body to an allergen
✔✔mortality - ✔✔death rate
✔✔linkage - ✔✔connection between two or more objects
✔✔inspirator - ✔✔a form of inhaler or respirator
✔✔duct - ✔✔a small passage
✔✔palsy - ✔✔synonym for paralysis; e.g., cerebral palsy
✔✔sedation - ✔✔the act or process of calming
✔✔temperature - ✔✔the degree of sensible heat or cold
✔✔Cassette - ✔✔A lightweight container in which x-ray films are placed for exposure to
radiation
✔✔Stimulant - ✔✔Agent that causes increased activity
✔✔Lingual - ✔✔Pertaining to the tongue
✔✔Biteplane - ✔✔A removable appliance that covers the occlusal surface of the teeth
to prevent twit articulation
✔✔fabrication - ✔✔construction; making a restoration
✔✔gangrene - ✔✔death of tissue en masse
✔✔incisal - ✔✔relating to the cutting edge of the anterior teeth, incisors or canines
✔✔porosity
(po-ros' i-te) - ✔✔presence of pores with a structure
✔✔template - ✔✔a pattern or mold
✔✔phobia - ✔✔a specific hysterical fear
✔✔dilation - ✔✔the act of stretching or dilating
✔✔astringent - ✔✔an agent that limits the secretions of glands
, ✔✔humectant - ✔✔substance that prevents moisture loss
✔✔operatory - ✔✔the room in which the dentist performs professional services
✔✔prescription
(pre-skrip'shun) - ✔✔treatment plan or medical recipe
✔✔minim - ✔✔an apothecary unit of volume
✔✔embrasure - ✔✔space between the curved proximal surfaces of teeth
✔✔hemisection - ✔✔complete sectioning through the crown of a tooth
✔✔silica - ✔✔quartz; used to make up dental porcelain
✔✔ejector - ✔✔a device used to remove debris and fluids; an aspirator
✔✔extrusion - ✔✔movement of teeth beyond the natural coronal plane
✔✔lipoma - ✔✔a benign fatty tumor
✔✔refractory - ✔✔pertaining to the ability to withstand high temperatures used in
certain dental laboratory procedures
✔✔stomatitis - ✔✔inflammation of oral soft tissues
✔✔deviation - ✔✔turning from a regular course
✔✔emulsion - ✔✔a colloidal dispersion of one liquid in another
✔✔microorganism - ✔✔minute living organisms
✔✔sensory - ✔✔pertaining to sensation
✔✔surfactant - ✔✔a surface-active agent
✔✔vasomotor - ✔✔causing expansion or contraction of blood vessel walls
✔✔necrosis - ✔✔death of a cell or group of cells
✔✔function - ✔✔the normal or special action of a part
✔✔flexion - ✔✔bending of a joint; opposite of extension
