Điền từ phù hợp từ 1 - 10
Many people nowadays have to ----(1) false teeth when they are ----(2). The reason is that tooth ----(3) increases a lot. The amount of ----(4) in our food also increases. Doctors and dentists now know that sugar is the chief ----(5) of tooth decay. Eskimos's ----(6), for example, started to decay when they began to ----(7) sweeter food.
Long ago dectors did not like to ----(8) people's teeth. Barbers and Blacksmiths looked after people's teeth and ----(9) them out when thay decayed. Some people -----(10) toothache was punishment from the gods.