CBCT Diagnosis: Case #7

This patient has sinus problems on and off for the past year. He had 3 rounds of antibiotics as treatment along with nasal rinses and nasal sprays. Eventually they were referred for evaluation of his teeth. The tooth most probably became necrotic after the crown preparation but there were no perceived dental pain. He was eventually referred since the radiograph finally reveled a radio lucent finding. The CBCT shows how the sinus membrane actually has been affected. After endodontic treatment the sinus membrane usually returns to normal.