OSCE DENTAL HYGIENE EXAM 2024 NEWEST EXAM 340
QUESTIONS WITH DETAILED VERIFIED ANSWERS (100%
CORRECT) /ALREADY GRADED A+
Bass Method - ANSWER: Most widely used method. Bristles are angled at a 45
degree angel towards the gingiva.
Stillman's Method - ANSWER: Bristles are positioned on the gums rather than into
the pockets and directed at a 45 degree angle.
Charter's Method - ANSWER: Bristles are directed occlusally, away from the gingiva.
Useful for cleaning orthodontic brackets, prosthesis, and areas treated with
surgeries.
Fone's Method - ANSWER: Bristles are moved in large circular motion on the buccal
and lingual surfaces. Useful for children, those physically impaired, or adults who
lack manual dexterity.
Fluoride Varnish - ANSWER: -Dries immediately upon contact with saliva.
-Does not require a professional prophylaxis before hand.
-Can eat and drink immediately after.
-Avoid brushing, rigorous rinsing, or hard foods for 3 to 4 hours.
-Easier and more effective method
Fluoride is recommended for patients who: - ANSWER: -Have xerostomia
-High caries risk
-Undergoing cancer therapy
-Orthodontics
Fluoride Gel or Foam (office application) - ANSWER: -Applied onto tray and placed in
patient's mouth usually for 4 minutes (Read manufactures label).
-Do not eat, drink, or smoke for 30 minutes.
-Most popular types are 1.23% APF and 2% Neutral sodium fluoride.
Stannous Fluoride - ANSWER: -0.4% available for non-prescription use.
-1% neutral sodium fluoride gels available for prescription use.
-Can cause extrinsic staining (especially in patient's with inadequate plaque control).
Acidulated Phosphate Fluoride (APF) - ANSWER: -Do NOT use of composites,
porcelain, or sealant materials as it causing pitting and roughening.
-Also avoid on root surfaces.
Neutral Sodium Fluoride - ANSWER: Agent of choice on root caries, implants,
cosmetic restorations, and reduced salivary flow.
Second trimester - ANSWER: safest trimester for dental treatment.
,Pregnancy gingivitis - ANSWER: -Caused by an elevation of hormones estrogen and
progesterone. Hormones increase can cause exaggerated gingival response to
microorganisms.
Pyrogenic granuloma (Pregnancy tumor) - ANSWER: localized area of gingival
enlargement, typically involving interdental papilla, usually diminishes after delivery
of baby.
What category of LA can use administer to a pregnant patient? - ANSWER: Category
B (lidocaine and prilocaine)
Can you use Nitrous oxide sedation and general sedation on a pregnant patient? -
ANSWER: relative contraindication (gas interferes with the absorption of B-12 and
other nutrients).
Early Childhood Caries (ECC) index - ANSWER: -presence of 1 or more areas of decay
on a child younger than 6 years of age
Severe-Early Childhood Caries (S-ECC) index - ANSWER: -Presence of decay in a child
younger than 3 years old.
When should a child's first dental appointment occur? - ANSWER: -Within 6 months
of the eruption of the first tooth or before 1-year of age.
When should you first start brushing a child's teeth? - ANSWER: -When the first
tooth appears.
Erosion causes - ANSWER: -Anorexia Nervosa
-Bulimia Nervosa
Anorexia Nervosa - ANSWER: extreme weight loss caused by self-starvation,
excessive exercise, use of laxatives, self-induced vomiting.
Bulimia Nervosa - ANSWER: compulsive disorder that involves periods of starvation,
binging, and purging.
Signs and Symptoms of erosion - ANSWER: -dental caries from vomiting
-Perimolysis: erosion from vomiting mostly on the maxillary lingual surfaces. Raised
appearance of restoration margins.
Abrasion - ANSWER: -V-shaped notch in the gingival portion of the facial aspect of
the tooth.
-Results from forces of friction between the teeth or external objects.
-Can happen from improper brushing technique or the use of a toothpick or pipe.
Attrition - ANSWER: -Results from forces between the teeth.
, -Wear on the incised and occlusal surfaces from grinding.
Abfraction - ANSWER: -Biomechanical destruction related to fatigue, flexure, and
deformation of tooth structure.
-Can appear as a wedge-shaped lesion at the cervical third of the tooth.
What is the most effective public health measure to prevent tooth decay? - ANSWER:
Community Water Fluoridation
New recommended level of fluoride is? - ANSWER: 0.7 ppm
Old level of fluoride is? - ANSWER: 0.7-1.2 ppm
HIV can cause: - ANSWER: -Linear gingival erythema
-Kaposi Sarcoma
-Delayed healing
-Larger than usual ulcers
-Candidiasis
-Etc.
Diabetes can cause: - ANSWER: -Delayed healing
-Periodontal disease
-Candidiasis
-Etc.
ASA 1 - ANSWER: Normal, Healthy
ASA 2 - ANSWER: Pt. with mild systemic diseases.
-Allergies
-Controlled hypertension
-Asthma
-Mild obesity
-Pregnancy
-Cigarette smoking without COPD
-Diabetes without systemic effects
ASA 3 - ANSWER: Pt. with severe systemic disease and some functional limitation.
-Controlled disease of more than one body system
-Controlled CHF
-Poorly controlled hypertension
-Morbid obesity
-Respiratory Problems (COPD)
-Stable angina
ASA 4 - ANSWER: Pt with severe systemic disease that is a constant threat to life.
-Possible risk of death
-Unstable angina
QUESTIONS WITH DETAILED VERIFIED ANSWERS (100%
CORRECT) /ALREADY GRADED A+
Bass Method - ANSWER: Most widely used method. Bristles are angled at a 45
degree angel towards the gingiva.
Stillman's Method - ANSWER: Bristles are positioned on the gums rather than into
the pockets and directed at a 45 degree angle.
Charter's Method - ANSWER: Bristles are directed occlusally, away from the gingiva.
Useful for cleaning orthodontic brackets, prosthesis, and areas treated with
surgeries.
Fone's Method - ANSWER: Bristles are moved in large circular motion on the buccal
and lingual surfaces. Useful for children, those physically impaired, or adults who
lack manual dexterity.
Fluoride Varnish - ANSWER: -Dries immediately upon contact with saliva.
-Does not require a professional prophylaxis before hand.
-Can eat and drink immediately after.
-Avoid brushing, rigorous rinsing, or hard foods for 3 to 4 hours.
-Easier and more effective method
Fluoride is recommended for patients who: - ANSWER: -Have xerostomia
-High caries risk
-Undergoing cancer therapy
-Orthodontics
Fluoride Gel or Foam (office application) - ANSWER: -Applied onto tray and placed in
patient's mouth usually for 4 minutes (Read manufactures label).
-Do not eat, drink, or smoke for 30 minutes.
-Most popular types are 1.23% APF and 2% Neutral sodium fluoride.
Stannous Fluoride - ANSWER: -0.4% available for non-prescription use.
-1% neutral sodium fluoride gels available for prescription use.
-Can cause extrinsic staining (especially in patient's with inadequate plaque control).
Acidulated Phosphate Fluoride (APF) - ANSWER: -Do NOT use of composites,
porcelain, or sealant materials as it causing pitting and roughening.
-Also avoid on root surfaces.
Neutral Sodium Fluoride - ANSWER: Agent of choice on root caries, implants,
cosmetic restorations, and reduced salivary flow.
Second trimester - ANSWER: safest trimester for dental treatment.
,Pregnancy gingivitis - ANSWER: -Caused by an elevation of hormones estrogen and
progesterone. Hormones increase can cause exaggerated gingival response to
microorganisms.
Pyrogenic granuloma (Pregnancy tumor) - ANSWER: localized area of gingival
enlargement, typically involving interdental papilla, usually diminishes after delivery
of baby.
What category of LA can use administer to a pregnant patient? - ANSWER: Category
B (lidocaine and prilocaine)
Can you use Nitrous oxide sedation and general sedation on a pregnant patient? -
ANSWER: relative contraindication (gas interferes with the absorption of B-12 and
other nutrients).
Early Childhood Caries (ECC) index - ANSWER: -presence of 1 or more areas of decay
on a child younger than 6 years of age
Severe-Early Childhood Caries (S-ECC) index - ANSWER: -Presence of decay in a child
younger than 3 years old.
When should a child's first dental appointment occur? - ANSWER: -Within 6 months
of the eruption of the first tooth or before 1-year of age.
When should you first start brushing a child's teeth? - ANSWER: -When the first
tooth appears.
Erosion causes - ANSWER: -Anorexia Nervosa
-Bulimia Nervosa
Anorexia Nervosa - ANSWER: extreme weight loss caused by self-starvation,
excessive exercise, use of laxatives, self-induced vomiting.
Bulimia Nervosa - ANSWER: compulsive disorder that involves periods of starvation,
binging, and purging.
Signs and Symptoms of erosion - ANSWER: -dental caries from vomiting
-Perimolysis: erosion from vomiting mostly on the maxillary lingual surfaces. Raised
appearance of restoration margins.
Abrasion - ANSWER: -V-shaped notch in the gingival portion of the facial aspect of
the tooth.
-Results from forces of friction between the teeth or external objects.
-Can happen from improper brushing technique or the use of a toothpick or pipe.
Attrition - ANSWER: -Results from forces between the teeth.
, -Wear on the incised and occlusal surfaces from grinding.
Abfraction - ANSWER: -Biomechanical destruction related to fatigue, flexure, and
deformation of tooth structure.
-Can appear as a wedge-shaped lesion at the cervical third of the tooth.
What is the most effective public health measure to prevent tooth decay? - ANSWER:
Community Water Fluoridation
New recommended level of fluoride is? - ANSWER: 0.7 ppm
Old level of fluoride is? - ANSWER: 0.7-1.2 ppm
HIV can cause: - ANSWER: -Linear gingival erythema
-Kaposi Sarcoma
-Delayed healing
-Larger than usual ulcers
-Candidiasis
-Etc.
Diabetes can cause: - ANSWER: -Delayed healing
-Periodontal disease
-Candidiasis
-Etc.
ASA 1 - ANSWER: Normal, Healthy
ASA 2 - ANSWER: Pt. with mild systemic diseases.
-Allergies
-Controlled hypertension
-Asthma
-Mild obesity
-Pregnancy
-Cigarette smoking without COPD
-Diabetes without systemic effects
ASA 3 - ANSWER: Pt. with severe systemic disease and some functional limitation.
-Controlled disease of more than one body system
-Controlled CHF
-Poorly controlled hypertension
-Morbid obesity
-Respiratory Problems (COPD)
-Stable angina
ASA 4 - ANSWER: Pt with severe systemic disease that is a constant threat to life.
-Possible risk of death
-Unstable angina
