With a spill-proof feature, the sippy cup is a great design for toddlers who are learning how to use cups. It brings a lot of convenience to both parents and young children. However, frequently using of the sippy cup may result in tooth decay, similar to the development of bottle caries. Therefore, parents should cut short the time of their children using that sort of cup and make sure that there is mere water inside the cup if the children like to go to bed together with it. 

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