This course will cover basic principles of usage and interpretation of radiographic imaging modalities in two and three dimensions for diagnostic imaging of the dento-maxillofacial region covering the major disciplines in dental medicine. Current guidelines/consensus, limitations, and potential future developments in dento-maxillofacial radiology (DMFR) for extra- and intraoral imaging modalities will be presented and critically discussed including the issues related with radiation dose protection. The present MOOC has been designed to improve foundation knowledge but also to promote higher order thinking skills such as collaboration, critical thinking and problem-solving for experienced clinicians in various fields of dental medicine. The scientific leadership team and coordination of the MOOC will be based in HKU / Faculty of Dentistry. This course will feature an interdisciplinary team of the renowned clinicians in their respective fields to discuss current guidelines/consensus, trends and limitations in DMFR.