Introduction The impact of orthodontic forces on human pulpal tissues has been the subject of interest with an unpredictable result. These changes range from an inconsequential alteration in the pulp vasculature to a deplete in the respiration rate of the pulpal tissue. Moreover, the nature, direction and expanse of orthodontic appliances forces exerted during tooth movement, the maturity of root apices and patient’s age may all influence a change on human pulpal tissues.