Many people nowsadays 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’ ……………..(6), for example, started to decay when they began to …………….(7) sweeeter food.
Long ago doctors did not like to ……………..(8) people’s teeth. Barbers and blacksmiths looked after people’s teeth and ………………..(9) them out when they decayed. Some people ……………..(10) toothache was a punishment from the gods.
1. wear
2. middle – age
3. decay
4. sugar
5. cause
6. teeth
7. eat
8. treat
9. pulled
10. thought
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