Hi perry9508. The nasal bridge is made up of bone in the top 1/3 of your nose and cartilage in the middle 1/3 of the nose. A dent in the nasal bridge could be either a depression in the cartilage or the bone. There are two types of nasal valves: internal nasal valve and external nasal valve. The nasal valves control airflow from the environment into your nasal passage, and are dynamic structures. The internal nasal valve is deeper in your nose and is bordered by the cartilage of your septum, nasal sidewall and turbinate. A dent in the middle of your nasal bridge could lead to blockage of the internal nasal valve on that side. The external nasal valve is closer to your nostril and entry point to your nose, and is unaffected by depressions in the nasal bridge. In rhinoplasty, form accompanies function. Therefore, depressions can cause nasal airway and breathing issues. Seek the consultation of a facial plastic surgeon for evaluation. Good luck. Best, Dr H.