The trepan burs 227B permit the preparation of bone cylinders with a diameter of 2.9 to 8.9 mm for transplantation or pathological examination.
The instruments with a smaller diameter are also ideally suited for the preparation of bone lids in the course of an apical ectomy.
Advantages:
• The openings in the working area of the bur not only permit better vision on the surgical site but also facilitate ejection of the bone cylinders
• The stainless steel trepan burs feature a high-efficiency toothing specially suited for cutting bone and assure non-traumatic treatment
• Indication of the respective inner and outer diameter on the instrument shank assures easy identification
Recommendations of use:
• Recommended speed: Optimal speed: 800 – 1,000 rpm Maximum speed: 6,000 rpm
• To be used in the green contra-angle (reduction at least 10:1) under constant external cooling with sterile physiological saline solution


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