Abstract
In clinical dental practice based on regular check-ups by dental hygienists, intraoral standard photography is a basic integrant. In recent years, patients' awareness of oral mucosal diseases increased. Early detection is important for the appropriate treatment of the disease, and for that purpose, recording of the oral mucosa in a healthy state is an important reference for diagnosis. In this report, we summarize the standardization method of intraoral photography based on NIDCR data.