根据短文内容， 用方框中所给单词适当形式填空，使文章通顺，完整。（每空限填一词，每词限用一次）

Mr. Green is a dentist who cares about young men's. He has some student patients and here he gives an example to tell us that we pay attention to (注意) the students' health.

Jim is a 15-year-old boy. His parents are so that they can't look after him well. Last week they saw Jim in the bedroom and found that he had a toothache. Then they took him to the . Mr. Green checked him carefully and was to see that he had 16 cavities(蛀牙). When he heard that Jim ate too much , he suggested that he must give up eating it. He also gave another that Jim should brush his teeth every day

At last, the dentist to Jim's parents, "You must take him to see a dentist 3 months."