Standard metal expansion screw keys designed for use with fixed rapid palatal expansion appliances. The end easily engages the activation hole, and a simple backwards push turns the screw; the key is designed so it cannot be swallowed. Each pack contains 25 keys.
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Standard metal expansion screw keys designed for use with fixed rapid palatal expansion appliances. The end easily engages the activation hole, and a simple backwards push turns the screw; the key is designed so it cannot be swallowed. Each pack contains 25 keys.
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