Abstract: A method of using of an alveolar bone regeneration device including an active needle electrode covered totally or partially with insulation and an energization controller includes: inserting an electrode into the root canal of an alveolar bone and attaching a counter electrode to the mouth of a person; and performing energization between the electrode and the counter electrode using the energization controller. The energization is performed by one-shot energization using the current of a tone burst wave. Heat generated at a tip portion of the electrode sterilizes a tooth pulp, a root of a tooth, a periodontal tissue, and/or a lesion. The heat can kill bacteria at the tooth pulp, the root of the tooth, the periodontal tissue, and/or the lesion; activate osteoblasts, and regenerate an alveolar bone.