 The advantage of self-ligating brackets on periodontal health has yet to be determined. In addition, the utilization of tongue scraping as an adjunct to traditional oral hygiene measures has yet to be studied in orthodontic patients. The aim of this study is to evaluate the effect of bracket type on plaque accumulation and also the impact of the appliance on oral malodor. In addition, the effect of tongue scraping on halitosis will be studied in patients undergoing orthodontic treatment. 