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15 May, 2019
fluor hóa nước uống có vẻ góp phần giảm sâu răng ở trẻ em, nhưng không có đủ chứng cứ khoa học là nó có tác dụng tương tự đối với người lớn,
ngày càng nhiều nha sĩ nghi ngờ việc nhổ răng khôn,
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the case for fluoridation is also weak by modern standards–questioning fluoridation has been a taboo (điều cấm kỵ) in American society since anti-fluoridation activists were branded as far-right conspiracy theorists (người tin vào thuyết âm mưu) in the 1950s.
The Cochrane organization, a highly respected arbiter of evidence-based medicine, has conducted systematic reviews of oral-health studies since 1999….most of the Cochrane reviews reach one of two disheartening conclusions: Either the available evidence fails to confirm the purported benefits of a given dental intervention, or there is simply not enough research to say anything substantive one way or another.
Fluoridation of drinking water seems to help reduce tooth decay (sâu răng) in children, but there is insufficient evidence that it does the same for adults. Some data suggest that regular flossing, in addition to brushing, mitigates (giảm thiểu) gum disease, but there is only “weak, very unreliable” evidence that it combats plaque. As for common but invasive dental procedures, an increasing number of dentists question the tradition of prophylactic wisdom-teeth (răng khôn) removal; often, the safer choice is to monitor unproblematic teeth for any worrying developments. Little medical evidence justifies the substitution of tooth-colored resins for typical metal amalgams to fill cavities. And what limited data we have don’t clearly indicate whether it’s better to repair a root-canaled tooth with a crown or a filling. When Cochrane researchers tried to determine whether faulty metal fillings should be repaired or replaced, they could not find a single study that met their standards.
Tags: health
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