THE VEHICLE IN FRONT OF ME CAME TO A STOP WITH A DEFECTIVE BRAKE LIGHT, SO WE WERE IN TRAFFIC SO I WASN'T GOING MORE THAN 5 MPH, SO APPLIED THE BRAKES. UNFORTUNATELY I STILL BUMPED THE BUMPER OF THE VEHICLE IN FRONT OF ME WHICH CAUSED THE AIR BAG TO DEPLOY. WHEN THE AIR BAG DEPLOYED IT CAUSED DAMAGE TO MY ARM AND FACE LOOSENING 6 TEETH WHICH HAS SINCE HAD TO BE PULLED OUT. THERE WAS NOTHING WITH THE ACCIDENT THAT SHOULD HAVE CAUSED THE WINDSHIELD TO BE COMPLETELY SMASHED, BUT IT WAS COMPLETELY SHATTERED. THE EMT KEPT ASKING ME IF I HIT MY HEAD ON THE WINDSHIELD AND I REPEATEDLY SAID "NO". I CAN ONLY EAT SOFT FOOD OR SMOOTHIES NOW SINCE LOSING MY TEETH. I DON'T REMEMBER ANYTHING ONCE THE AIR BAG DEPLOYED LEADING THE EMT PERSONNEL TO FEEL I LOST CONSCIOUSNESS. DUE TO THE DAMAGE THE AIR BAG CAUSED TO MY VEHICLE ALONG WITH ACCELERATING ONCE THE AIR BAG HIT ME IN THE FACE CASUED MY VEHICLE TO BE A TOTAL LOSS BY MY INSURANCE ADJUSTOR USAA.