mottling of teeth 中文意思是什麼
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Fluoride, for example, is an important component in bone and tooth structure. too low a level of fluoride increases the incidence of dental caries, but an elevated level of fluoride causes mottling of the teeth as well as skeletal fluorosis
例如，氟化物是骨骼及牙結構的重要成分攝取氟化物不足會增加患蛀牙的機會，但攝取過量的氟化物卻會導致牙產生斑點，甚至引致骨骼氟中毒。
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