The Effect of Platelet-rich Plasma on the Rate and Type of Orthodontic Tooth Movement

The PRP will be prepared according to a well-established technique and then injected into the palatal mucosa of the upper anterior teeth before retraction.

The anterior teeth will be moved backward in an en-masse retraction way using a frictionless method. The anterior teeth will be manipulated as one block. Coil springs will be stretched between the power arms (in the anterior area) to the miniscrews placed in the posterior area bilaterally.