A litre of teacan contain up to 9mg of fluoride, which in excess can cause skeletal fluorosis, reducing bone quality and causing pain and stiffening of the ligaments.
一升茶树含有高达9毫克的氟化物，过量会导致氟骨症，降低骨骼质量，导致疼痛和韧带僵硬。
2
Use professional cold light to whiten and treat acheomycin teeth, dental fluorosis, teeth staining.
运用专业冷光美白技术治疗四环素牙、氟斑牙、染色牙。
3
The endemic fluorosis is a kind of endemic disease around the rord.