OSCE Dental Hygiene Exam Test With Correct Answer|| 2025/2026 Updated
BassMethod- ANSWER Mostwidelyusedmethod.Bristlesareangledat a 45 degreeangeltowardsthe
gingiva.
Stillman'sMethod- ANSWER Bristlesarepositionedon thegums ratherthaninto thepocketsand
directedat a 45 degreeangle.
Charter'sMethod- ANSWER Bristlesare directedocclusally,awayfrom thegingiva. Usefulfor cleaning
orthodonticbrackets,prosthesis,and areastreatedwith surgeries.
Fone'sMethod- ANSWER Bristlesare movedin largecircular motionon thebuccaland lingual surfaces.
Usefulfor children,thosephysicallyimpaired,or adultswho lack manualdexterity.
FluorideVarnish - ANSWER -Dries immediatelyupon contactwith saliva.
-Does not requirea professionalprophylaxisbeforehand.
-Can eatand drink immediatelyafter.
-Avoid brushing,rigorousrinsing, or hard foodsfor 3 to 4 hours.
-Easierand moreeffectivemethod
Fluorideis recommendedfor patientswho:- ANSWER -Have xerostomia
-High cariesrisk
-Undergoingcancertherapy
-Orthodontics
,FluorideGel or Foam (officeapplication)- ANSWER -Applied ontotray and placedin patient'smouth
usuallyfor 4 minutes(Read manufactureslabel).
-Do not eat,drink, or smokefor 30 minutes.
-Mostpopulartypesare1.23%APF and 2% Neutralsodiumfluoride.
StannousFluoride- ANSWER -0.4% availablefor non-prescriptionuse.
-1% neutralsodiumfluoridegelsavailablefor prescriptionuse.
-Can causeextrinsicstaining(especiallyin patient'swith inadequateplaquecontrol).
AcidulatedPhosphateFluoride(APF) - ANSWER -Do NOT useof composites,porcelain,or sealant
materialsas it causingpitting and roughening.
-Also avoid on root surfaces.
NeutralSodiumFluoride- ANSWER Agent of choiceon rootcaries,implants,cosmeticrestorations,and
reducedsalivaryflow.
Secondtrimester- ANSWER safesttrimesterfor dentaltreatment.
Pregnancygingivitis - ANSWER -Causedby an elevationof hormonesestrogenand progesterone.
Hormonesincreasecan causeexaggeratedgingival responseto microorganisms.
Pyrogenicgranuloma(Pregnancytumor) - ANSWER localizedareaof gingival enlargement,typically
involving interdentalpapilla,usuallydiminishesafterdeliveryof baby.
What categoryof LA can useadministerto a pregnantpatient?- ANSWER CategoryB (lidocaineand
prilocaine)
,Can you useNitrous oxide sedationand generalsedationon a pregnantpatient?- ANSWER relative
contraindication(gas interfereswith theabsorptionof B-12 and othernutrients).
Early Childhood Caries (ECC) index - ANSWER -presenceof 1 or moreareasof decayon a child
youngerthan 6 yearsof age
Severe-Early Childhood Caries (S-ECC) index - ANSWER -Presenceof decayin a child youngerthan 3
yearsold.
When shoulda child'sfirst dentalappointmentoccur? - ANSWER -Within 6 monthsof theeruptionof
thefirst toothor before1-yearof age.
When shouldyou first startbrushinga child'steeth?- ANSWER -When thefirst toothappears.
Erosion causes- ANSWER -Anorexia Nervosa
-Bulimia Nervosa
AnorexiaNervosa- ANSWER extremeweightloss causedby self-starvation,excessiveexercise,useof
laxatives,self-inducedvomiting.
Bulimia Nervosa- ANSWER compulsivedisorderthatinvolvesperiodsof starvation,binging, and
purging.
Signs and Symptomsof erosion- ANSWER -dentalcariesfrom vomiting
-Perimolysis:erosionfrom vomiting mostlyon themaxillarylingual surfaces.Raised
, appearanceof restorationmargins.
Abrasion- ANSWER -V-shapednotchin thegingival portionof thefacialaspectof thetooth.
-Resultsfrom forcesof friction betweentheteethor externalobjects.
-Can happenfrom improperbrushingtechniqueor theuseof a toothpickor pipe.
Attrition - ANSWER -Resultsfrom forcesbetweentheteeth.
-Wearon theincisedand occlusalsurfacesfrom grinding.
Abfraction- ANSWER -Biomechanicaldestructionrelatedto fatigue,flexure,and deformationof tooth
structure.
-Can appearas a wedge-shapedlesionat thecervicalthird of thetooth.
What is themosteffectivepublic healthmeasureto preventtoothdecay?- ANSWER Community Water
Fluoridation
New recommendedlevelof fluorideis? - ANSWER 0.7 ppm
Old levelof fluorideis? - ANSWER 0.7-1.2 ppm
HIV can cause:- ANSWER -Linear gingival erythema
-Kaposi Sarcoma
-Delayedhealing
-Larger thanusualulcers
-Candidiasis
BassMethod- ANSWER Mostwidelyusedmethod.Bristlesareangledat a 45 degreeangeltowardsthe
gingiva.
Stillman'sMethod- ANSWER Bristlesarepositionedon thegums ratherthaninto thepocketsand
directedat a 45 degreeangle.
Charter'sMethod- ANSWER Bristlesare directedocclusally,awayfrom thegingiva. Usefulfor cleaning
orthodonticbrackets,prosthesis,and areastreatedwith surgeries.
Fone'sMethod- ANSWER Bristlesare movedin largecircular motionon thebuccaland lingual surfaces.
Usefulfor children,thosephysicallyimpaired,or adultswho lack manualdexterity.
FluorideVarnish - ANSWER -Dries immediatelyupon contactwith saliva.
-Does not requirea professionalprophylaxisbeforehand.
-Can eatand drink immediatelyafter.
-Avoid brushing,rigorousrinsing, or hard foodsfor 3 to 4 hours.
-Easierand moreeffectivemethod
Fluorideis recommendedfor patientswho:- ANSWER -Have xerostomia
-High cariesrisk
-Undergoingcancertherapy
-Orthodontics
,FluorideGel or Foam (officeapplication)- ANSWER -Applied ontotray and placedin patient'smouth
usuallyfor 4 minutes(Read manufactureslabel).
-Do not eat,drink, or smokefor 30 minutes.
-Mostpopulartypesare1.23%APF and 2% Neutralsodiumfluoride.
StannousFluoride- ANSWER -0.4% availablefor non-prescriptionuse.
-1% neutralsodiumfluoridegelsavailablefor prescriptionuse.
-Can causeextrinsicstaining(especiallyin patient'swith inadequateplaquecontrol).
AcidulatedPhosphateFluoride(APF) - ANSWER -Do NOT useof composites,porcelain,or sealant
materialsas it causingpitting and roughening.
-Also avoid on root surfaces.
NeutralSodiumFluoride- ANSWER Agent of choiceon rootcaries,implants,cosmeticrestorations,and
reducedsalivaryflow.
Secondtrimester- ANSWER safesttrimesterfor dentaltreatment.
Pregnancygingivitis - ANSWER -Causedby an elevationof hormonesestrogenand progesterone.
Hormonesincreasecan causeexaggeratedgingival responseto microorganisms.
Pyrogenicgranuloma(Pregnancytumor) - ANSWER localizedareaof gingival enlargement,typically
involving interdentalpapilla,usuallydiminishesafterdeliveryof baby.
What categoryof LA can useadministerto a pregnantpatient?- ANSWER CategoryB (lidocaineand
prilocaine)
,Can you useNitrous oxide sedationand generalsedationon a pregnantpatient?- ANSWER relative
contraindication(gas interfereswith theabsorptionof B-12 and othernutrients).
Early Childhood Caries (ECC) index - ANSWER -presenceof 1 or moreareasof decayon a child
youngerthan 6 yearsof age
Severe-Early Childhood Caries (S-ECC) index - ANSWER -Presenceof decayin a child youngerthan 3
yearsold.
When shoulda child'sfirst dentalappointmentoccur? - ANSWER -Within 6 monthsof theeruptionof
thefirst toothor before1-yearof age.
When shouldyou first startbrushinga child'steeth?- ANSWER -When thefirst toothappears.
Erosion causes- ANSWER -Anorexia Nervosa
-Bulimia Nervosa
AnorexiaNervosa- ANSWER extremeweightloss causedby self-starvation,excessiveexercise,useof
laxatives,self-inducedvomiting.
Bulimia Nervosa- ANSWER compulsivedisorderthatinvolvesperiodsof starvation,binging, and
purging.
Signs and Symptomsof erosion- ANSWER -dentalcariesfrom vomiting
-Perimolysis:erosionfrom vomiting mostlyon themaxillarylingual surfaces.Raised
, appearanceof restorationmargins.
Abrasion- ANSWER -V-shapednotchin thegingival portionof thefacialaspectof thetooth.
-Resultsfrom forcesof friction betweentheteethor externalobjects.
-Can happenfrom improperbrushingtechniqueor theuseof a toothpickor pipe.
Attrition - ANSWER -Resultsfrom forcesbetweentheteeth.
-Wearon theincisedand occlusalsurfacesfrom grinding.
Abfraction- ANSWER -Biomechanicaldestructionrelatedto fatigue,flexure,and deformationof tooth
structure.
-Can appearas a wedge-shapedlesionat thecervicalthird of thetooth.
What is themosteffectivepublic healthmeasureto preventtoothdecay?- ANSWER Community Water
Fluoridation
New recommendedlevelof fluorideis? - ANSWER 0.7 ppm
Old levelof fluorideis? - ANSWER 0.7-1.2 ppm
HIV can cause:- ANSWER -Linear gingival erythema
-Kaposi Sarcoma
-Delayedhealing
-Larger thanusualulcers
-Candidiasis
