1) A rock used by dentist to scrub teeth.
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Pumice is a light gray, highly siliceous material produced by volcanic activity. The flour of pumice is a very finely grounded derivative which is used for polishing of tooth enamel, gold foil, dental amalgam and acrylic resins.
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Answer:
Pumice is a light gray, highly siliceous material produced by volcanic activity. The flour of pumice is a very finely grounded derivative which is used for polishing of tooth enamel, gold foil, dental amalgam and acrylic resins...
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Anonymous:
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