 The effects of three different types of train-track will be assessed with respect to the quality of Orthodontic tooth movement produced. Furthermore, the impact of the different train-tracks on daily life of orthodontic patients will also be measured. Consequently, the investigators will be able to inform orthodontists decisions relating to the choice of train-track they recommend for their patients. In addition, should the more expensive appliances demonstrate objective or subjective advantage, a significant efficiency saving may develop. 