Missing teeth in the primary and mixed dentition may result from various causes. Removable prosthesis for primary or mixed dentition should be designed and fabricated according to its individual condition. In addition to provide the masticatory function and restore esthetics, removable prosthesis also keeps the stomatognathic system in a functional status so that the growth and development of the lower face and temporomandibular joint will not be limited. However, adequate treatment plan before treatment and periodic follow-up adjustment are needed in order to insure a favorable result.