Dental Assisting MN Licensure Exam Review Already Passed

Dental Assisting MN Licensure Exam Review Already Passed Chlorahexadine Stain Found in Chewing Gum and Mouthrinses, Yellowish to green brown in color Endogenous Stains Originate within the tooth through developmental and systemic disturbances and CAN'T be removed Exogenous Stains Those that originate outside the tooth and are caused by environmental agents Extrinsic Stains Are those stains that appear on the exterior of the tooth and CAN be removed Intrinsic Stains Are caused by environmental source but CAN'T be removed because the stain has become incorporated into the tooth structure Black Stain Thin Black line on the teeth near the gingival margin, Frequently found in clean mouths. Extrinsic Tobacco Stain A very tenacious dark brown or black stain - Extrinsic Brown or yellow stain Most commonly found on the buccal surfaces of the maxillary molars and the lingual surfaces of the lower anterior Incisors - Extrinsic Dental plaque agents Reddish brown stain on the interproximal and cervical areas of the teeth. Caused by prescription mouth princes that contain chlorhexidine - Extrinsic Nasmyths membrane Light green or brownish stain caused by food stains in the residue of epithelium, on newly erupted teeth - Extrinsic Natural rubber polishing cups More 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 to Remove stains from enamel, High abrasiveness Chalk Mild abrasive, used in some prophy pastes and for both whitening Prophy Brushes should not be used on ___________ ? Dentin When polishing: 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? Pen grasp Periodontal dressings Types Zinc oxide - Eugenol (come in powder or liquid form What instruments are used to remove periodontal dressings Spoon excavator sickle Explorer and Surgical hoe How to remove a periodontal dressing? 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? 1 min - Delmar 15-30 seconds -MDA Where would you place topical prior to a nasalopalatine nerve block? Lingual tissue adjacent to the incisive papilla Where would you place topical prior to the mental nerve block? Anterior to the mental foramen between the apices of the roots of the mandibular premolars Where would you place topical prior to the mandibular nerve block? Posterior to the Retro molar pad below and anterior to the mandibular foramen Allergic reactions can occur from topical. Some clinical manifestations are... Swelling, redness, ulcerations, difficulty swallowing