OSCE Dental Hygiene With complete solutions |
latest update 2026/2027
Bass Method - Ans Most widely used method. Bristles are angled at a 45 degree angel
towards the gingiva.
Stillman's Method - Ans Bristles are positioned on the gums rather than into the pockets
and directed at a 45 degree angle.
Charter's Method - Ans Bristles are directed occlusally, away from the gingiva. Useful for
cleaning orthodontic brackets, prosthesis, and areas treated with surgeries.
Fone's Method - Ans 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 - Ans -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: - Ans -Have xerostomia
-High caries risk
-Undergoing cancer therapy
-Orthodontics
,Fluoride Gel or Foam (office application) - Ans -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 - Ans -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) - Ans -Do NOT use of composites, porcelain, or
sealant materials as it causing pitting and roughening.
-Also avoid on root surfaces.
Neutral Sodium Fluoride - Ans Agent of choice on root caries, implants, cosmetic
restorations, and reduced salivary flow.
Second trimester - Ans safest trimester for dental treatment.
Pregnancy gingivitis - Ans -Caused by an elevation of hormones estrogen and
progesterone. Hormones increase can cause exaggerated gingival response to microorganisms.
Pyrogenic granuloma (Pregnancy tumor) - Ans 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? - Ans Category B (lidocaine
and prilocaine)
,Can you use Nitrous oxide sedation and general sedation on a pregnant patient? -
Ans relative contraindication (gas interferes with the absorption of B-12 and other
nutrients).
Early Childhood Caries (ECC) index - Ans -presence of 1 or more areas of decay on a child
younger than 6 years of age
Severe-Early Childhood Caries (S-ECC) index - Ans -Presence of decay in a child younger
than 3 years old.
When should a child's first dental appointment occur? - Ans -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? - Ans -When the first tooth appears.
Erosion causes - Ans -Anorexia Nervosa
-Bulimia Nervosa
Anorexia Nervosa - Ans extreme weight loss caused by self-starvation, excessive exercise,
use of laxatives, self-induced vomiting.
Bulimia Nervosa - Ans compulsive disorder that involves periods of starvation, binging,
and purging.
Signs and Symptoms of erosion - Ans -dental caries from vomiting
-Perimolysis: erosion from vomiting mostly on the maxillary lingual surfaces. Raised appearance
of restoration margins.
, Abrasion - Ans -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 - Ans -Results from forces between the teeth.
-Wear on the incised and occlusal surfaces from grinding.
Abfraction - Ans -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? -
Ans Community Water Fluoridation
New recommended level of fluoride is? - Ans 0.7 ppm
Old level of fluoride is? - Ans 0.7-1.2 ppm
HIV can cause: - Ans -Linear gingival erythema
-Kaposi Sarcoma
-Delayed healing
-Larger than usual ulcers
-Candidiasis
-Etc.
latest update 2026/2027
Bass Method - Ans Most widely used method. Bristles are angled at a 45 degree angel
towards the gingiva.
Stillman's Method - Ans Bristles are positioned on the gums rather than into the pockets
and directed at a 45 degree angle.
Charter's Method - Ans Bristles are directed occlusally, away from the gingiva. Useful for
cleaning orthodontic brackets, prosthesis, and areas treated with surgeries.
Fone's Method - Ans 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 - Ans -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: - Ans -Have xerostomia
-High caries risk
-Undergoing cancer therapy
-Orthodontics
,Fluoride Gel or Foam (office application) - Ans -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 - Ans -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) - Ans -Do NOT use of composites, porcelain, or
sealant materials as it causing pitting and roughening.
-Also avoid on root surfaces.
Neutral Sodium Fluoride - Ans Agent of choice on root caries, implants, cosmetic
restorations, and reduced salivary flow.
Second trimester - Ans safest trimester for dental treatment.
Pregnancy gingivitis - Ans -Caused by an elevation of hormones estrogen and
progesterone. Hormones increase can cause exaggerated gingival response to microorganisms.
Pyrogenic granuloma (Pregnancy tumor) - Ans 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? - Ans Category B (lidocaine
and prilocaine)
,Can you use Nitrous oxide sedation and general sedation on a pregnant patient? -
Ans relative contraindication (gas interferes with the absorption of B-12 and other
nutrients).
Early Childhood Caries (ECC) index - Ans -presence of 1 or more areas of decay on a child
younger than 6 years of age
Severe-Early Childhood Caries (S-ECC) index - Ans -Presence of decay in a child younger
than 3 years old.
When should a child's first dental appointment occur? - Ans -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? - Ans -When the first tooth appears.
Erosion causes - Ans -Anorexia Nervosa
-Bulimia Nervosa
Anorexia Nervosa - Ans extreme weight loss caused by self-starvation, excessive exercise,
use of laxatives, self-induced vomiting.
Bulimia Nervosa - Ans compulsive disorder that involves periods of starvation, binging,
and purging.
Signs and Symptoms of erosion - Ans -dental caries from vomiting
-Perimolysis: erosion from vomiting mostly on the maxillary lingual surfaces. Raised appearance
of restoration margins.
, Abrasion - Ans -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 - Ans -Results from forces between the teeth.
-Wear on the incised and occlusal surfaces from grinding.
Abfraction - Ans -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? -
Ans Community Water Fluoridation
New recommended level of fluoride is? - Ans 0.7 ppm
Old level of fluoride is? - Ans 0.7-1.2 ppm
HIV can cause: - Ans -Linear gingival erythema
-Kaposi Sarcoma
-Delayed healing
-Larger than usual ulcers
-Candidiasis
-Etc.
