The increased treatment time required for orthodontic therapy is one of the major causes for the increase in the risk of root resorption. Shorter duration of orthodontic treatment is the need of the hour in current practice as huge number of adult patients demand results within a short span of time. As a result, there is an increased number of studies focusing on methods that accelerate orthodontic tooth movement.

Several noninvasive or invasive techniques have been proposed clinically or experimentally for accelerating orthodontic tooth movement. The noninvasive techniques include (a) biomechanical approach such as the self-ligation brackets, (b) physiological approach such as the direct electric current stimulation, the low level laser therapy, vibration or photomodulation and (c) pharmacological approach such as the injection of prostaglandin or relaxin.

Keser and Dibart, introduced the Piezocision technique, a novel minimally invasive technique for accelerated tooth movement. One of the recently used local agents to accelerate the rate of orthodontic tooth movement is platelet-rich plasma (PRP). PRP is defined as an autologous concentration of platelets in a minute volume of plasma. Hence the study is conducted to assess and compare the amount of root resorption in Piezocision and PRP induced accelerated tooth movement.

Hence the need for the present study is to -

1.To assess the rate of root resorption with Piezocision induced accelerated orthodontic tooth movement.

2.To assess the rate of root resorption with Platelet rich plasma (PRP) induced accelerated orthodontic tooth movement.

3.To compare the rate of root resorption between Piezocision induced and Platelet rich plasma (PRP) induced accelerated orthodontic tooth movement.

4.To draw the clinical inferences from above.