The best time to remove double rows of teeth is usually as soon as possible after they appear, and there is no such thing as the best time or the most appropriate age. Double rows of teeth mainly appear in the 6-12 years old stage of tooth replacement, that is, in the time of tooth replacement, permanent teeth have partially or completely grown out, the milk teeth are still in the original position did not fall out, will form double rows of teeth, long time existence of double rows of teeth will lead to misalignment of the teeth, untidy, general appearance of the double rows of teeth need to be extracted in a timely manner. The removal of milk teeth that have not fallen out can leave enough space for the growth of permanent teeth to avoid malocclusion and other problems. Double rows of teeth is not a big problem, the treatment means and technology are more mature, such as temporarily do not want to extract the teeth can be stimulated by eating more hard food to stimulate its normal fall, try to be ineffective and then go to the hospital for treatment. Double rows of teeth is a relatively common problem, parents still need to pay attention, according to the doctor’s guidance to take targeted treatment.