DSE OSCE STUDY GUIDE REVIEW 2026
QUESTIONS WITH ANSWERS GRADED A+
⩥ 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 beforehand. - Can
eat and drink immediately after. - Avoid brushing, rigorous rinsing, or
hard foods for 3 to 4 hours. - Easier and more effective method.
⩥ Fluoride recommendation for patients. 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
,manufacturer's 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 patients with inadequate plaque
control).
⩥ Acidulated Phosphate Fluoride (APF). Answer: - Do NOT use on
composites, porcelain, or sealant materials as it causes 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.
,⩥ Category of LA for pregnant patients. Answer: Category B (lidocaine
and prilocaine).
⩥ Nitrous oxide sedation and general sedation on pregnant patients.
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.
⩥ First dental appointment. Answer: Within 6 months of the eruption of
the first tooth or before 1 year of age.
⩥ First brushing of 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.
⩥ Community Water Fluoridation. Answer: the most effective public
health measure to prevent tooth decay.
⩥ New recommended level of fluoride. Answer: 0.7 ppm
⩥ Old level of fluoride. Answer: 0.7-1.2 ppm
QUESTIONS WITH ANSWERS GRADED A+
⩥ 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 beforehand. - Can
eat and drink immediately after. - Avoid brushing, rigorous rinsing, or
hard foods for 3 to 4 hours. - Easier and more effective method.
⩥ Fluoride recommendation for patients. 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
,manufacturer's 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 patients with inadequate plaque
control).
⩥ Acidulated Phosphate Fluoride (APF). Answer: - Do NOT use on
composites, porcelain, or sealant materials as it causes 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.
,⩥ Category of LA for pregnant patients. Answer: Category B (lidocaine
and prilocaine).
⩥ Nitrous oxide sedation and general sedation on pregnant patients.
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.
⩥ First dental appointment. Answer: Within 6 months of the eruption of
the first tooth or before 1 year of age.
⩥ First brushing of 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.
⩥ Community Water Fluoridation. Answer: the most effective public
health measure to prevent tooth decay.
⩥ New recommended level of fluoride. Answer: 0.7 ppm
⩥ Old level of fluoride. Answer: 0.7-1.2 ppm
