Flowable composite resins are defined as a group of dental composite resins which their low viscosity allows them to flow on a surface, so they can easily be applied with the help of a syringe. These materials have been used as filling and sealant agents for almost three decades; but despite of their popularity in the operative dentistry, to this day they have not found a place in the field of Orthodontics. Recently a few studies successfully used flowable composite resins as an adhesive for orthodontic brackets and fixed orthodontic retainers; also some orthodontists prefer to use these materials for temporary opening of the patient’s bite. The purpose of this literature review is to present an update on the use of flowable composite resins in the orthodontic treatments.
