The method of block random assignment will be divided using randomization software, using blocks of four, code A will be the intervention group (using the DPE method) and code B will be the comparison group (using the EP method) and we will make six combinations of four. Then random codes will be generated for each of these blocks, then one of these blocks will be randomly selected and based on the sequence of letters A and B in the selected block, the eligible people will be assigned to treatment or comparison groups. This process The random selection of blocks and assigning people to the intervention and comparison groups will continue until the desired sample size is reached. This method solves the problem of imbalance that may occur in simple randomization, so this study is two-sided. It is blind designed, thus the surgeon is aware of the status of assigning people to the study groups, but the data collector and analyzer as well as the patients are not aware of the status of assigning people to the study groups. For the study subjects, before random allocation, it is explained how the work process is, and they may receive one of the two treatments randomly, and the method used is not known to the subjects in advance, therefore, the patient does not know in which The group has been placed will be unaware, on the other hand, the data collectors and analysts will also be unaware of the patients' belonging to the treatment groups.