This individual presented for a restorative evaluation and during the exam reported that his front teeth are sometimes sore. The two images below show some interesting findings. What do you see that might be the cause of his sore teeth? He also reported some muscle symptoms, especially his anterior temporalis bilaterally and posterior fibers of both masseters. What might be the cause of that? The answer is on the tops of the teeth.

Upper teeth showing the back side. Teeth are white and clean.

Upper teeth showing the back side. Teeth are blotchy with dark colors.