Dental Assisting MN Licensure Exam Review
Chlorahexadine Stain Accurate Answer - Found in Chewing Gum and
Mouthrinses, Yellowish to green brown in color
Endogenous Stains Accurate Answer - Originate within the tooth
through developmental and systemic disturbances and CAN'T be removed
Exogenous Stains Accurate Answer - Those that originate outside the
tooth and are caused by environmental agents
Extrinsic Stains Accurate Answer - Are those stains that appear on the
exterior of the tooth and CAN be removed
Intrinsic Stains Accurate Answer - Are caused by environmental source
but CAN'T be removed because the stain has become incorporated into the
tooth structure
Black Stain Accurate Answer - Thin Black line on the teeth near the
gingival margin, Frequently found in clean mouths. Extrinsic
Tobacco Stain Accurate Answer - A very tenacious dark brown or black
stain - Extrinsic
Brown or yellow stain Accurate Answer - Most commonly found on the
buccal surfaces of the maxillary molars and the lingual surfaces of the lower
anterior Incisors - Extrinsic
Dental plaque agents Accurate Answer - Reddish brown stain on the
interproximal and cervical areas of the teeth. Caused by prescription mouth
princes that contain chlorhexidine - Extrinsic
Nasmyths membrane Accurate Answer - Light green or brownish stain
caused by food stains in the residue of epithelium, on newly erupted teeth -
Extrinsic
Natural rubber polishing cups Accurate Answer - More resilient and do
not stain the teeth
, Synthetic polishing cups Accurate Answer - should be used for patients
with latex allergies
Zirconium Silicate Accurate Answer - Good for Gold, Exposed dentin,
tooth colored restorations
Tin Oxide Accurate Answer - Good on enamel and metallic
restorations, mixed with water, alcohol, glycerin
Flour of pumice Accurate Answer - to Remove stains from enamel,
High abrasiveness
Chalk Accurate Answer - Mild abrasive, used in some prophy pastes
and for both whitening
Prophy Brushes should not be used on ___________ ? Accurate Answer -
Dentin
When polishing: Accurate Answer - 1)Apply light pressure so the cup
flares into sulcus 1 - 2mm
2) Go from the Gingival 3rd to the occlusal 3rd
3) overlapping strokes
What grasp is used to operate the prophy angle? Accurate Answer -
Pen grasp
Periodontal dressings Types Accurate Answer - Zinc oxide - Eugenol
(come in powder or liquid form
What instruments are used to remove periodontal dressings Accurate
Answer - Spoon excavator sickle Explorer and Surgical hoe
How to remove a periodontal dressing? Accurate Answer - Instrument
is inserted along the margin of the dressing and a lateral pressure is used to
pry dressing away from tissues
How long should topical anesthetics be left on the mucosa? Accurate
Answer - 1 min - Delmar
15-30 seconds -MDA
Chlorahexadine Stain Accurate Answer - Found in Chewing Gum and
Mouthrinses, Yellowish to green brown in color
Endogenous Stains Accurate Answer - Originate within the tooth
through developmental and systemic disturbances and CAN'T be removed
Exogenous Stains Accurate Answer - Those that originate outside the
tooth and are caused by environmental agents
Extrinsic Stains Accurate Answer - Are those stains that appear on the
exterior of the tooth and CAN be removed
Intrinsic Stains Accurate Answer - Are caused by environmental source
but CAN'T be removed because the stain has become incorporated into the
tooth structure
Black Stain Accurate Answer - Thin Black line on the teeth near the
gingival margin, Frequently found in clean mouths. Extrinsic
Tobacco Stain Accurate Answer - A very tenacious dark brown or black
stain - Extrinsic
Brown or yellow stain Accurate Answer - Most commonly found on the
buccal surfaces of the maxillary molars and the lingual surfaces of the lower
anterior Incisors - Extrinsic
Dental plaque agents Accurate Answer - Reddish brown stain on the
interproximal and cervical areas of the teeth. Caused by prescription mouth
princes that contain chlorhexidine - Extrinsic
Nasmyths membrane Accurate Answer - Light green or brownish stain
caused by food stains in the residue of epithelium, on newly erupted teeth -
Extrinsic
Natural rubber polishing cups Accurate Answer - More resilient and do
not stain the teeth
, Synthetic polishing cups Accurate Answer - should be used for patients
with latex allergies
Zirconium Silicate Accurate Answer - Good for Gold, Exposed dentin,
tooth colored restorations
Tin Oxide Accurate Answer - Good on enamel and metallic
restorations, mixed with water, alcohol, glycerin
Flour of pumice Accurate Answer - to Remove stains from enamel,
High abrasiveness
Chalk Accurate Answer - Mild abrasive, used in some prophy pastes
and for both whitening
Prophy Brushes should not be used on ___________ ? Accurate Answer -
Dentin
When polishing: Accurate Answer - 1)Apply light pressure so the cup
flares into sulcus 1 - 2mm
2) Go from the Gingival 3rd to the occlusal 3rd
3) overlapping strokes
What grasp is used to operate the prophy angle? Accurate Answer -
Pen grasp
Periodontal dressings Types Accurate Answer - Zinc oxide - Eugenol
(come in powder or liquid form
What instruments are used to remove periodontal dressings Accurate
Answer - Spoon excavator sickle Explorer and Surgical hoe
How to remove a periodontal dressing? Accurate Answer - Instrument
is inserted along the margin of the dressing and a lateral pressure is used to
pry dressing away from tissues
How long should topical anesthetics be left on the mucosa? Accurate
Answer - 1 min - Delmar
15-30 seconds -MDA
