A 6-year-old child with a toothache and a hole in the tooth needs a resin filling, and if accompanied by pulpitis, root canal treatment is needed. 1. If your child has a toothache with a hole, you need to go to the hospital for a checkup in time. If the hole is shallow and the pulp is not injured, you can have a resin filling. 2. If the hole is deeper, or there are symptoms of pulpitis such as severe pain, spontaneous pain, night pain, you need to carry out root canal treatment to remove the infected material in the root canal as well as the nerve, sterilize and fill the root canal, and then carry out resin fillings. Children usually need to pay attention to maintain good oral habits, go to the hospital regularly for dental checkups, and deal with tooth decay in a timely manner to avoid further development.