抄録
This paper reports a 35-year-old female patient with a relatively large pulp polyp in her mandibular third molar, who was referred to our department for examination of a tumor in her oral cavity. The oral examination confirmed the presence of a tumor of 30 × 20 × 7mm in her left mandibular third molar; however, its detailed observation was difficult due to mental retardation. In May 201X, the patient's oral cavity was observed under general anesthesia, revealing that the tumor was growing from the carious cavity of the left mandibular third molar. Therefore, tooth extraction was performed to remove the tumor. It was histopathologically diagnosed as a pulp polyp. The patient's difficulty in reporting her subjective symptoms due to mental retardation may have prevented early identification of the polyp, allowing its extensive growth.
