UNMOUNTED STONES

By Dr. Vishaal Bhat on Friday 28 January 2011 with 0 comments



Unmounted stones are provided with a hole in the center to facilitate use with a mandrel.

HEATLESS STONE
·         Very coarse stone used for grinding metal or porcelain, but quite dirty because the surface of the stone pulverizes when being used.
·         As a crude grinding stone .it reduces material rapidly.
·         Excellent for grinding extracted teeth.


CARBORUNDUM DISC:  (Joe dandy)
This disc is the basic tool for grinding, cutting or disking in the laboratory or chair side. Although it may be convex, it is usually flat & has a common diameter of 7/8² & a thickness of 0.5 –0.6 mm. In its best form, coarse grit is present on one side & fine grit on the other. These discs fracture rapidly, but are quite inexpensive.

ULTRATHIN SEPERATING (CARBORUNDUM ) DISK

·         Very fragile & must be mounted on a large headed mandrel.
·         When thin saw like cuts are needed, this disc is effective in parting metal or porcelain.

PORCELAIN GRINDING WHEEL (BUSCH SILENT STONE)

·         This very fine grit stone is used exclusively for grinding porcelain
·         Thickness – 2mm

Category: Conservative and Endodontics Notes , Conservative Dentistry Notes , Dental Materials Notes , Endodontics Notes , Featured

POST COMMENT

0 comments:

Post a Comment