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True of false metals like copper are sometimes used to fill cavities in teeth
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True of false metals like copper are sometimes used to fill cavities in teeth

User Akhila
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True, metals (like copper) are sometimes used to fill cavities in teeth, which are called 'Metal Fillings'.
User Feng Jiang
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I'd say false because copper is what they used to drink out of in the middle ages, and it caused them to get very sick, so I doubt they would use copper in your mouth.
User Gerald Chifanzwa
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