A patient presented with a cavity as shown circled in red on his X-ray.
Without the X-ray, the cavity would not have been noticed at first glance.
Once through the outer harder layer (enamel) the inner softer layer (dentin) is shown to be soft, dark, and decayed.
The cavity is cleaned out until the remaining tooth structure is healthy and hard, and a band and wedge are placed to help restore the tooth.
Once the filling is placed, a light is used to harden it and the band and wedge are removed.
The patient then bites on marking paper to show any high areas and the filling is adjusted until their bite feels normal again.