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An apparatus is described which supplies sterile, air-free physiologic saline as coolant at the tip of the handpiece. The device is activated by the foot control of the dental engine and the bur is flooded with saline the very moment the rotations begin. In the same way is stops instantaneously without afterdrip and without suckback. The components are either disposable or autoclavable. Metallic components are stainless steel.
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