Abstract
A case of trismus caused by glass fragments buried in the temporal region is reported. A 45-year-old man was referred to our clinic because of a limited range of opening, persisting for 2 months after sustaining a facial injury caused by fighting. A scar was found in the left temporal region, and mouth opening was limited to 15 mm. Radiographic examination showed a radiopaque mass in the temporal muscle medial to the zygomatic arch. On operation, three buried pieces of glass located medially to the zygomatic arch were removed. One piece measured 30×25×5 mm, and the other two measured 5×4×4 mm and 3×2×2 mm. The postoperative course has been uneventful for 3 years.