There are three major benefits of seeing a dentist every six months: Save money: the cost of treating a tooth can range from a few dozen dollars (for shallow caries) to a few hundred dollars (for deep caries) or even thousands of dollars (for endodontitis, apical inflammation), again depending on whether or not we treat the tooth as early as possible. Save time: the time to treat a tooth can vary from a few minutes (shallow caries) to a few minutes (deep caries) to a few hours (pulpitis, apical inflammation), again depending on whether we treat it early or not.