Improved dental bur

Details Improved dental bur Improved dental bur

A - Human Necessities

61

C

A61C 3/02 (2006.01) A61C 5/02 (2006.01)

Patent

CA 2500644

A dental bur (10A) structure including a rotatable shaft (12) turned by a motor (14). The shaft (12) possesses a proximal portion having a fluted surface (32). The bur also possesses a distal portion with a smooth surface tip (22) which generates heat to melt a composite post matrix upon activation of the shaft. The fluted surface (32) removes a composite material while the smooth tip (22) serves as a guide for the bur.

L'invention concerne une structure de fraise dentaire comprenant une tige rotative actionnée par un moteur. La tige possède une partie proximale présentant une surface cannelée. Ladite fraise possède également une partie distale possédant un embout de surface lisse qui produit de la chaleur de manière à faire fondre un tenon en matériau composite après activation de la tige. La surface cannelée élimine le matériau composite alors que l'embout lisse fait office de guide pour ladite fraise.

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