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Lasers are widely used in most of the fields in dentistry for many years and they have recently gained popularity in orthodontic practice. Most common procedures with laser applications in orthodontics could be summarized as acceleration of tooth movement, pain reduction after force application, bone regeneration in the median palatal suture area during maxillary expansion or consolidation phase after distraction osteogenesis, enamel etching during bonding procedure, reduction of enamel decalcification, debonding of ceramic brackets, soft tissue applications such as gingival recontouring and attachment placement for impacted teeth. In this review, biostimulation effect or low level laser therapy in orthodontics will be exclusively evaluated.