WorksheetsPolishing amalgams
Total questions: 10
Worksheet time: 5mins
Why should amalgam restorations be polished?
Provides an opportunity to improve margins and check for occlusal discrepancies
Provides an opportunity to redefine anatomy if necessary
Lengthens the life of the restoration by reducing the possibility of tarnish and corrosion
Restoration is smoother and reduces plaque deposits
Well polished amalgam should:
Have smooth, flush margins without flash extending past margins
Have a surface free from pits and voids
Have well defined anatomy and proper contours
Be uniformly smooth with a mirror like finish
Precaution(s) to take during polishing:
Avoid overheating
Delay polishing
Do not polish away the proximal contact
Do not polish away the proximal contour
Amalgam can be polished using_________ __________
Pumice technique
Shofu technique
Calcium oxide technique
Titanium technique
Name this amalgam finishing bur
OS2
7404
7408
7800
Name this amalgam finishing bur
7808
OS2
OS3
7404
Select the correct sequence for polishing amalgam restorations using the Shofu technique
Finishing bur, brownie, greenie, supergreenie
Supergreenie, finishing bur, brownie, greenie
Greenie, supergreenie, finishing bur, brownie
Brownie, greenie, suoerhreenie, finishing bur
Using an explorer, the margin is rough and ragged rather than following the smooth line of the cavity preparation, there is most likely_______________present
Flash
Open margin
Ditching
Overhang
The tip of the explorer catches when moved in both directions across the margin, it indicates there is____________
Open margin
Flashing
Ditching
Overhang
Select the correct sequence for finishing and polishing amalgams using the pumice technique
Finishing bur, coarse pumice,fine pumice, tin oxide
Tin oxide, finishing bur, coarse pumice, fine pumice
Finishing bur, fine pumice, coarse pumice, tin oxide
Coarse pumice, finishing bur, fine pumice, tin oxide
