###Human: Please advice regarding management of tooth pain in a child. ###Assistant: Hi. The first molar of the lower jaw of both the left and right side are having cavities. Go for X-ray for both the tooth. In the X-ray, the dentist can see where infection (caries) has reached (to the pulp or not). If caries has reached the pulp, you have to go for pedodontic root canal treatment (pulpectomy). If not, then you have to go for a tooth filling. This will solve your problem.