IRCT20171108037316N1 IRCT 2018-01-12 Deputy of Research of Tabriz University of Medical Sciences Effect of platelet rich plasma on osteogenesis Effect of platelet rich plasma (PRP) on the quantity of the osteogenesis after the removal of odontogenic cysts 2015-10-23 anticipated 26 Complete https://irct.ir/trial/27644 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Simple randomization is used to randomize patients into control and experiment groups. To do this, random number table is used to produce disorganized numbers in order to assign patients to one of the groups. Reading method is up to down. Odds and even numbers are assigned to patients in control and experiment groups, respectively. For allocation concealment, due to patients selection from two sites, central randomization is used to prevent acknowledgement about groups before patients’s assignment, Blinding description: Double-blind method will be used to blind patients and researchers. Also, health stuffs will not be aware of classification of patients. For this, digital codes produced by a computer will be used to hide the real identity of the patients. 2-3 Odontogenic cysts. Intervention 1: Intervention group: Odontogenic cyst enucleation and PRP injection to the site.45 milliliters of whole blood with Citrate-phosphate-dextrose is drawn into a sterile tube and centrifuged for 12 minutes at 2400 rpm and 5600 rpm for PRP preparation then is injected to the surgical site. Intervention 2: Control group: Odontogenic cyst enucleation without PRP injection to the site. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is No further information has been provided.