Gums can be corrected in small children through myofunctional training, upper lip lift muscle disconnection, botulinum toxin injections, and gum trimming surgery. 1. Myofunctional training: When the symptom of smiling with gums is mild, it can be improved through myofunctional training, and the length of the upper lip will gradually become longer with age. 2. Upper Lip Lift Muscle Disconnection: Surgery can provide natural looking dental restorations and rejuvenation of the lips, and reshape the position of the upper lip, which can effectively improve the problem of exposure of the gums when a child smiles. 3. Botulinum toxin injection: You need to take your child to the regular hospital, through the injection of Botulinum toxin to weaken the muscle contraction ability, and with the functional training of the muscle, you can also correct the problem of the child’s smile and gum exposure. 4. Gum Trimming Surgery: If a child has the symptom of gums showing when he smiles, and if it is caused by a short crown, he can be given gum trimming surgery, which can remove the soft tissues in the gum area and suture to lengthen the crown treatment. Children smile up gums, can not blindly go to non-professional institutions to correct, it is recommended that patients go to the regular children’s hospitals or stomatology clinic, according to the club under the guidance of a professional doctor to choose the right program for themselves.