EFDA 2023 Exam Questions with Correct Answers
Coronal Polishing is a technique:
a. that is a substitute for an oral prophylaxis.
b. used to remove calculus, debris, stain, and plaque from teeth.
c. used to remove plaque and stains from the coronal surfaces of the teeth.
d. that can be performe...
EFDA 2023 Exam Questions with Correct Answers Coronal Polishing is a technique: a. that is a substitute for an oral prophylaxis. b. used to remove calculus, debris, stain, and plaque from teeth. c. used to remove plaque and stains from the coronal surfaces of the teeth. d. that can be performed by any dental assistant. - ANSWER c. used to remove plaque and stains from coronal surfaces of the teeth. Exogenous stains are caused by environmental sources and are classified into subdivisions, including which of the following? a. Intrinsic stains b. Endogenous stains. c. Extrinsic stains. d. Both a and c. - ANSWER A and C Which of the following choices represents an endogenous stain? a. An excessive amount of fluoride during the development of the tooth. b. blueberries c. dental amalgam that has been incorporated into tooth structure. d. coffee - ANSWER coffee Air-powered polishing is used to remove: - ANSWER Disclosing agent can be used for: - ANSWER Revealing Home care . The air -polishing technique uses a specially designed handpiece, with a nozzle that delivers a high -pressure stream of warm water and: - ANSWER Air. Polishing cups: a. remove stain from the clinical crowns of teeth. b. are made from gutta -percha. c. should be rotated rapidly to remove stains from teeth. d. are available in a synthetic material for patients with latex allergies. - ANSWER remove stain from the clinical crowns of teeth. When using a bristle brush, the brush should be: a. rotating rapidly before touching the tooth surface. b. applied lightly to the tooth surface while revolving at the lowest speed. c. placed on the tooth while not rotating, and then rotating slowly. d. placed on the tooth while not rotating, and then rotated in a reversed direction. - ANSWER Rotating rapidly be for touching the surface of the tooth. Recommended polishing pastes have _____ polish and ____ abrasion levels. a. high; high b. high; low c. low; high d. low; low - ANSWER High, Lo w Luting Cement - ANSWER Adhesive Cementing provisionals - ANSWER Temporary cements Zinc phosphate - ANSWER Gives off exothermic reaction. Mix on glass slab Loading provisionals and cast restorations with cement - ANSWER Lightly lined to cover walls (both) Polycarboxylate cement uses and appearence. - ANSWER Looks glassy. Stringy/weblike Types of glass ionomer cements and users - ANSWER 1-Luting, 2 -
Restorative/erosion Class V, 3 - Etched and b onded Composite resin cement - ANSWER Tooth colored, free of plaque and debris, etched and bonded Leaving excess cement behind - ANSWER irritates tissues Influencing factors of cementation - ANSWER Humidity, temp and mixing time Steps to follow before dispensing cement powder - ANSWER " Fluffing" (shaking) Glass Ionomer cement characteristics and appearance - ANSWER Releases fluoride Types of ZOE and uses - ANSWER Type 1 used for provisionals Removing excess cement - ANSWER Don't pull down Use of dental lathe - ANSWER when impressions
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