In a person's life, the replacement of teeth is an important symbol, which represents the process of a person's growth from infancy. When a man adds a new tooth, it means that he has entered a new stage, no longer a child, but a young man or an adult. This symbolizes his physical and mental growth and development, and he has more responsibilities and independence.

Adding new teeth also shows that he is healthy, and changing teeth is a normal physiological phenomenon. In addition, adding new teeth can also symbolize his social and career progress. He may have made some achievements or new breakthroughs in his study or work. The above answers are for reference only, please don't be blindly superstitious.