OSCE DENTAL HYGIENE STUDY GUIDE
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
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
