MN Licensure Exam | 200 Questions with 100% Correct Answers | Updated & Verified
Describe the motion/pressure when preforming a mechanical polish. - ANS - A quick light to moderate pressure should be used. on slow speed pushing gently and overlapped. What part of the rubber cup does the polishing? - ANS - THE OUTER EDGE DOES THE POLISHING If a line of stain or deposits appear along the gingival margin after polishing, the problem was? - ANS - the prophy cup was not flexed or adapted to the tooth. The stroke used to polish a tooth is from the ---- third to the --- edge. - ANS - gingival third to the incisal edge A mechanical polish removes what deposits and stains? - ANS - All soft deposits and extrinsic exogenous stains List the objectives of a mechanical polish? - ANS - Creates smooth surfaces easier for patient cleaning, all soft deposits extrinsic stains removed, contributes to pt. motivation. What does excessive speed during a mechanical polish cause? - ANS - Abrasion and tramuatic frictional heat
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