The bur features a unique three-tiered or multi-wheel design. Unlike standard tapered burs, this bur has calibrated diamond-coated rings separated by non-cutting horizontal grooves. When the bur is pressed against the tooth surface, it stops cutting once the non-cutting shank reaches the tooth, creating orientation grooves of an exact predetermined depth.
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Features
Predictable Reduction: Eliminates the guesswork of free-hand preparation by creating consistent grooves (typically 0.5mm, 1.0mm, or 1.5mm) that act as a guide for bulk reduction.
Safety Stop Mechanism: The non-diamond coated "spacer" between the cutting wheels prevents the bur from sinking too deep, protecting the tooth from over-reduction.
High-Speed Efficiency: Designed with a Friction Grip (FG) shank for use with high-speed air turbines, allowing for rapid and steady groove placement.
Natural Diamond Coating: The cutting wheels are bonded with high-quality diamond grit for superior durability and a sharp, clean cut into enamel or old restorations.
Concentric Construction: Precision-ground shanks ensure the bur runs smoothly without "chatter" or vibration, improving patient comfort and the accuracy of the depth cuts.