说对了,我正在用含氟牙膏。几乎所有的牙医学教科书都会提到“氟”对预防龋齿的积极作用,加拿大持牌牙医都会向病人提倡ADA,FDA认可的含氟牙膏,洗牙师也依法用高氟凝胶预防龋齿。
诚然,反对氟的人群也不少,诸如小葡萄,有的甚至只喝不含氟纯净水。加拿大含氟自来水的覆盖率达到45%。不辛的是,在抵制含氟自来水的魁省,幼儿园孩子虫牙患病率比大范围实用含氟自来水的安省,高出40%. 对于抵制氟的小葡萄们,尽管我们苦口婆心,也难以阻挡她们“无齿”的结局。
来看官方报导:
A study of the oral health of children between 1990 and 1999 found that kindergarten children in Quebec had 40% more cavities than children in Ontario and the United States, and that tooth decay affects 56% of Quebec children in Grade 2.
Estimates of Community Water Fluoridation Coverage (2007)
Province/TerritoryPercentage of population
with fluoridated water
British Columbia3.7%
Alberta74.7%
Saskatchewan36.8%
Manitoba69.9%
Ontario75.9%
Quebec6.4%
New Brunswick25.9%
Nova Scotia56.8%
Prince Edward Island23.7%
Newfoundland/Labrador1.5%
Nunavut0.0%
Northwest Territories56.4%
Yukon0.0%
Canada45.1%
Source:
Office of the Chief Dental Officer