Check the listing for details. Dental Orthodontic Nola Cheek Retractor Dry Field System Mouth Opener Parts S/L. Condition: New. Listed at 6.64 USD. Dental Ortho Nola Cheek RetractorQuantity:1 Set(1 Kit including :Tongue Guard*1 ，support frame*1，check retractor*2，suction tube *2，T-pipe*1) Color:White as picture Material:Plastic Size:Large/Small Suction tube--Autoclavable 135℃Other parts--Autoclavable 121℃ How to use:1.Before operation, dentists need to put the retarctors on both sides of patient’s lips to maintain the mouth opening so that patient will not feel too tired. Meanwhile the tongue guard can effectively restrict the activities of the tongue. 2.The mouth bottom is just below the suction area, which can maximize the absorption of the saliva and prevent moisture. This product can create a relatively dry environment for dentists. It’s mainly used for orthodontic treatment. Features:1.Dry Field System keeps the mouth dry while isolating arches from tongue and cheeks. 2.Combined into each appliance is an adjustable cheek retractor, saliva ejector, tongue guard and low-volume suction connection. 3.Inlets are shielded for uninterrupted evacuation. 4.Specially designed not to cover occlusal surfaces of the teeth. 5.Great for sealants, ortho bonding, and posterior restorations. 6.High-heat plastic and silicone construction autoclavable to 280F/134℃. Simple assembly required FDA Statement:The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. If so, do not bid on this item unless you are an authorized purchaser. If the item is subject to FDA regulation, I will verify your status as an authorized purchaser of this item before shipping of the item.