Supernumerary teeth are extra teeth or tooth-like structures which may have either erupted or unerupted in addition to the 20 deciduous teeth and the 32 permanent teeth. Clinicians sometimes confront unerupted supernumerary teeth where implants would be placed. Many clinicians consider immediate placement of implant into an extracted socket as an effective technique compared to the conventional method of waiting several months for bone healing, because of the advantages such as reduction of treatment period, preservation of alveolar bone and soft tissue, etc. We could hardly find the case of immediate placement of implant after extraction of impacted supernumerary teeth and permanent teeth together. Therefore we report the case of immediate implantation following extraction of impacted supernumerary teeth and poor periodontal conditioned permanent teeth.