MN DASLE Questions and Answers | Latest Update

Chlorahexadine Stain -:- Found in Chewing Gum and Mouthrinses, Yellowish to green brown Endogenous Stains -:- within the tooth through developmental and systemic disturbances. CAN'T be removed Exogenous Stains -:- originate outside the tooth caused by environmental agents Extrinsic Stains -:- exterior of the tooth and CAN be removed Intrinsic Stains -:- caused by environmental source CAN'T be removed incorporated into the tooth Black Stain 2 | P a g e | G r a d e A + | 2 0 2 4 / 2 0 2 5 2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain | Excel! -:- Black line on the teeth near gingival margin, found in clean mouths. Extrinsic Tobacco Stain -:- dark brown or black stain - Extrinsic Brown or yellow stain -:- buccal surfaces of the maxillary molars and the lingual surfaces of the lower anterior Incisors Extrinsic Dental plaque agents -:- Reddish brown stain interproximal and cervical areas Caused by prescription mouth that contain chlorhexidine Extrinsic Nasmyths membrane -:- Light green or brownish stain caused by food stains on newly erupted teeth Extrinsic Natural rubber polishing cups 3 | P a g e | G r a d e A + | 2 0 2 4 / 2 0 2 5 2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain | Excel! -:- resilient and do not stain the teeth Synthetic polishing cups -:- Should be used for patients with latex allergies Zirconium Silicate -:- Good for Gold, Exposed dentin, tooth colored restorations Tin Oxide -:- Good on enamel and metallic restorations, mixed with water, alcohol, glycerin Flour of pumice -:- Remove stains from enamel, High abrasiveness Chalk -:- Mild abrasive, used in some prophy pastes and for both whitening dentin -:- Prophy Brushes should not be used on ___________ ? 4 | P a g e | G r a d e A + | 2 0 2 4 / 2 0 2 5 2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain | Excel! Pen Gras