Dr. Sanbo, a dentist in Shijiazhuang, pointed out that the purpose of taking dental films is to find lesions that cannot be observed by the naked eye. The X-ray film of teeth is called dental film for short, and it is also called intraoral standard film. A digital dental tablet can display 2-3 teeth. Teeth show a white mask image on dental film. Among them, enamel is the strongest, and dentin and cementum are lower than enamel. The pulp cavity is black and transparent, and the image from the root canal orifice to the apical foramen gradually becomes thinner.

Dental radiograph is the most widely used examination method in stomatology, and it is also the most necessary, because it is helpful for the diagnosis and treatment before, during and after dental treatment. It is helpful to find the focus before treatment; In the treatment, pin photography can be used to understand the root swelling. Observe the curative effect after treatment. In clinic, dental tablets are used to diagnose and treat dental hard tissue diseases, pulp diseases, periapical diseases and periodontal diseases. In addition, dental tablets are also used to check and diagnose impacted teeth, embedded teeth and replacement teeth.