Dental X-rays (radiographs) are images of the teeth that a dentist uses to evaluate oral health. They are made with low levels of radiation to capture images of the interior of teeth and gums. This can help a dentist to identify problems, like cavities, tooth decay, and impacted teeth.
Dentistry students at the University of Groningen are provided with a digital handbook for their radiology practicals. Part of that handbook is a series of models, which I was asked to make. I loved working n the instruments and adding them to anatomy model of the head and neck to show their positioning. Each model depicts the positioning for an x-ray. These x-rays show details of one area of the mouth.
The positioner depicted in the models below is positioned for a pericapical x-ray of the teeth of the upper jaw. It shows the whole tooth: from crown to beyond the rooth where the tooth attaches into the jaw. Each periapical x-ray shows all teeth in one portion of either the upper of lower jaw. Periapical x-rays detect any unusual changes in the root and surrounding bone structures.
This models below depict the positioning for a bite-wing x-ray. These x-rays show details of the upper and lower teeth in one area of the mouth. Each bite-wing shows a tooth from its crown (the exposed surface) to the level of the supporting bone. Bite-wing x-rays detect decay between teeth and changes in the thickness of bone caused by gum disease. Bite wing x-rays can also help determine the proper fit of a crown (a cap that completely encircles a tooth) or other restorations (eg, bridges). It can also see any wear or breakdown of dental fillings.
View all of the models embedded in the digital handbook here.
Curious to see more?
Click on the images below to have a look at more interactive 3D models I worked on.