Remove a small amount of Tooth-Fil. Place onto tooth which requires filling and gently bite using moderate pressure. The paste will set when it comes into contact with saliva. Make sure tooth is not overfilled and then leave for one minute, after which rinse mouth with warm water and spit out. Avoid further biting or applying further pressure on the filling for at least 15 minutes. Seek Dentist advice as soon as possible. For difficult lost fillings, where you cannot reach, use the spatula enclosed to pack TOOTH-FIL into cavity. For very large or painful fillings seek dental advice. Tooth-Fil does not stick to teeth, it will only be retained inside of cavity.