A Clinical Risk Prediction Model Of Orthodontically Induced Root Resorption Following Fixed Appliance Therapy

Purpose: This paper aims to study the role of five variables in the susceptibility to orthodontically induced root resorption in order to obtain an integrative model to predict the occurrence of this complication following fixed appliance therapy. Materials and Methods: Pre and post treatment records of 34 patients treated with MBT 0.022 slot appliances for a minimum of one year were studied. Root resorption was measured in the four maxillary and mandibular incisors using pre and post treatment orthopantomograms and lateral cephalograms. Statistical analysis was done to assess the role of five variables in the susceptibility of orthodontically induced root resorption Results: Among the variables studied; gender, treatment duration, age and alveolar bone thickness significantly contributed to orthodontically induced root resorption. Conclusion: Among the variables studied that are potential contributors for orthodontically induced root resorption, four variables associated with root resorption were identified.