Tapered fissure -plaincut
To cut cavity preparation
To form angles in walls of cavity preparation
To place retention grooves in walls of cavity preparation
size (168-171)
Labortary Burs- Acrylic Bur
To cut models or trim acrylic in laboratory
Sandpaper discs
used for polishing and finishing
Carborundum discs
known as a separating disc or a Joe Dandy used to cut metal or gold
Mandrels
screw type and snap on used to hold disc's and rubber wheels for smooth polishing
Pear
To open tooth for a restoration
To remove caries
(330-333)
Inverted Cone
To remove caries
To establish retention in tooth for cavity preparation
(33 1/2-39)
Round bur
To remove caries from tooth sturcture
To open tooth for endodontic treatment
To place retention in cavity preparation
(size1/4-10)
Tapered fissure-Crosscut
To cut cavity preparation
To form angles in walls of cavity preparation
(size 699-703)
Straight Fissure - Plain cut
To cut cavity preparation
To form inner walls of cavity preparation
To place retention grooves in walls of cavity preparation
(56-58)
Straight Fissure- Crosscut
To cut cavity preparation
To form walls of cavity preparation
To place retention grooves in walls of cavity preparation
(556-558)
Finish Bur
To finish composite restoration
To finish restoration by restoring anatomy in tooth
To equilibrate or adjust occlusion
Variety of shapes and sizes
Diamond Bur- Flat-End Taper
To reduce a tooth for crown preparation when a square shoulder is needed
Diamond Bur- Flat-End Cylinder
To reduce a tooth for crown preparation when parallel walls and flat floors are needed
Diamond Bur- Flame
To reduce a tooth for crown preparation for subginagival margins
Diamond Bur- Wheel
To reduce a tooth for crown preparation on lingual aspect of anterior teeth and to reduce bulk of incesal edges
Rubber Points
Brown points (brownies)- Abrasive
Green points (greenies)- Less abrasive than brownies
White points- Polishing point
Laboratory Bur- Diamond Disc
To contour or cut models in the laboratory