No abstract available
MeSH terms
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Adolescent
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Ascorbic Acid*
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Child
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Child, Preschool
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Clinical Trials as Topic
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Dental Prophylaxis*
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Female
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Humans
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Male
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Periodontal Diseases / prevention & control*
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Placebos
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Vitamin B Complex*
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Vitamins*
Substances
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Placebos
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Vitamins
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Vitamin B Complex
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Ascorbic Acid