Patent ID: 7021933

Claim:
A reduction burr for shaping a patient's dental surface, comprising: a shank including a first end of an elongated body having a first diameter extended symmetrical about a shank axis to a second end of said shank from which a chamfered rim is angled radially inwards to a second diameter being less than said first diameter; a curved shoulder extended from said chamfered rim, said curved shoulder having a uniformly decreasing cross-sectional diameter extending to a distal end, said distal end having a circular cross-section being less than said second diameter of said chamfered rim, said curved shoulder and said chamfered rim being aligned axially with said shank axis for balanced rotation; and a burr rigidly joined at a junction with said shoulder distal end, said burr including a selected body length having a cylindrical cross-section of a third diameter extended to a burr end, said burr body length and burr end having an abrasive surface thereon of a sufficient hardness to cut tooth enamel; whereby said junction defines a stop for self-limiting a depth of penetration of said burr into the patient's dental surface during rotation of said shank and burr as said curved shoulder and said junction contact adjacent uncut tooth enamel, thereby said rotating burr is readily directed to reduce any selected dental surface of the patient's crown and lateral dental surfaces.