The silicone stent becomes helpful because of low cost, good tolerance and easy to remove it from the airways if not necessary, so it become very popular in the treatment of tracheo-bronchial stenosis nowaday. Objective: study about the effects and safety of silicone stenting technique in the treatment of benign or malignal tracheo-broncheal stenosis in 5 hospitalized patients Method: interventional study Results: 100% successful, safe and no complication.