🦷 How many sets of teeth do humans usually have over an entire lifetime? When should children first visit a dentist? And is it true that all old people lose their teeth? Those are just some of the questions we asked in April. https://dentavox.dentacoin.com...
🦷 人类一生中通常有多少副牙齿？孩子们应该什么时候第一次看牙医？所有老年人都会掉牙，这是真的吗？这些只是我们在四月份提出的一些问题。https://dentavox.dentacoin.com...