EMPLOYEE WAS INSTALLING TRUSS RODS WHEN HE SLIPPED ON THE BOLTER. HE TRIED TO CATCH HIMSELF FROM FALLING. IN DOING SO HE HIT HIMSELF IN THE MOUTH WITH A TORQUE WRENCH. HE CUT HIS LIP AND BROKE ABOUT 1/3 OF HIS FRONT TOOTH OFF. HE RECEIVED MEDICAL TREATMENT TO REPAIR THE TOOTH.