Dentures can be used for CT examination, but metal dentures can show metal artifacts when doing maxillofacial CT examination, affecting the examination results, so it is best to remove the metal dentures when doing maxillofacial CT examination or follow the radiologist’s instructions for treatment. Dentures commonly used clinical materials include all-ceramic teeth, metal porcelain teeth and resin teeth. General all-ceramic teeth do not contain metal components, in the CT examination will not produce artifacts, so it will not affect the shooting CT; if it is a metal porcelain teeth, because the main components are made of metal and ceramic materials, the intrinsic metal materials in the maxillofacial CT examination, due to X-ray irradiation, the metal can be in the process of the examination of metal artifacts. Generally radiolucent artifacts, the observation of the surrounding organs appear to have an impact on the imaging diagnosis may have some impact, if you do maxillofacial CT examination should comply with the radiologist’s instructions will be the metal dentures need to be dealt with or not; if the resin braces, does not contain metal components, but the connectors are generally metal components, so it is best to remove the movable dentures in the CT examination of the maxillofacial region.