Prostho Dentmat Preboards Study Guide Rated A+

When a removable partial denture is completely seated, the retentive terminals of the retentive clasp arms should be {Ans: Passive and applying no pressure on teeth}A base metal partial denture alloy is RESISTANT to tarnish and corrosion because of its {Ans: Passivity}Repeated fracture of a porcelain fused to metal restoration is due primarily to {Ans: An inadequately designed framework}For posterior abutments with acceptable crown root ratios, average crown length and normal esthetic requirements, the retainer if choice is a ___ crown {Ans: Partial veneer}In recording centric relation, the mandible can be retruded by having the patient {Ans: Relax jaw muscles while dentist manually manipulates the chin up and down, protrude and retrude the mandible repeatedly, turn the tongue backward the posterior border of the palate, make repeated swallowing movements}Discolored, corroded, superficial layer frequently seen on the surface of amalgam is most likely {Ans: Sulfide}