Dental Burs: Names and Functions

Round Bur

Initial entry into tooth structure, extends preparation, removes decay, provides retention
(¼, ½, 1–8, 10)

Pear Bur

initial entry into tooth structure, extends preparation

(330–333, 331L)

Inverted Cone Bur

removes decay, establishes retentive grooves

(33½, 34–39, 36L, 37L)

Straight Fissure - Plain cut

initial entry into tooth, helps form internal walls of the preperation
(55–60, 57L, 58L)

Tapered fissure -Plaincut

provides angles to the walls of the prepared tooth
(169–172)

Straight Fissure- Crosscut

helps form internal walls of the preparation, removes decay more efficiently
(556–560, 567L, 568L)

Tapered fissure-Crosscut

provides angles to the walls of the prepared tooth
(699–703, 699L, 700L, 701L)

End Cutting Bur

Initial entry into tooth structure, creates a shoulder for the margin of a crown preparation

(957–958)

Diamond Bur- Wheel

quick reduction

Diamond Bur- Football

quick reduction

Diamond Bur- Round

quick reduction

Diamond Bur- Flame

quick reduction

Flame Finishing Bur

finishes and smooths restorations

Round Finishing Bur

 finishes and polishes restorations

Bullet Finishing Bur

contours and finishes restorations