The ADA will broaden its definition of porcelain/ceramic materials in its Code on Dental Procedures and Nomenclature (CDT Code) for insurance reimbursement, in response to requests from 3M ESPE and ...
Fragments of delicate Chinese porcelain, white with intricate blue swirls, make a curious contrast with other artifacts — mostly rusted metal or decayed wood — in the treasure fleet exhibit at the St.
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