DENTAL AMALGAM RDAEF2 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS

DENTAL AMALGAM RDAEF2 EXAM QUESTIONS AND ANSWERS

WITH COMPLETE SOLUTIONS

alloy

mixture of two metals

amalgamation

reaction when silver based alloy mixes with mercury

dental amalgam

metallic restorative material composed of silver-based alloy mixed with mercury

GV Balck

father of restorative dentistry tooth preperation

tarnish

oxidation affecting a thin layer of a metal at its surface that does not change the metal's

mechanical properties

creep

brittle phase, changes shape gradually

corrosion

breakdown of metal by chemical reaction

dimensional stability

is higher copper amalgam

Trituration

Process of mixing mercury and alloy

, Lathe-cut alloy

irregularly shaped particles formed by shaving fine particles from an alloy ingot

Spherical alloy

small spheres of alloy

Admixed alloy

mixture of lathe-cut and spherical alloys

1st Country to use amalgam

Germany 1500AD

Class I

Pits, fissures, oclussal surfaces

Class II

proximal surfaces of posterior teeth

Class lll

M/D of anterior composites

Class IV

anterior teeth involving I surface

Class V

gingival/buccal

CLass VI

cusp tip only on posterior

Composition of Aamlgam

silver, mercury, tin, copper, zinc

what reduces oxidation in amalgam