Randomization will be done as follows: initially 10 patients will be selected to be evaluated by a blinded evaluator and by the end of the evaluation, the patient will randomly choose a paper folded into 2 parts, which will be inside a plastic bag. Inside this bag there will be 10 paper folded in the same way and with the same color and size, where in three of them will say "A", two of them written in "B", three of them written in "C" and two of them "D" . Patients were drawn papers written "A" and "D" will be selected for group 1 and patients to raffle papers written "B" and "C" will be selected for group 2. After the drawing paper, the same can not be placed back in the bag. Randomization will be done this way so that all patients can also be divided into two groups and for the blind assessor does not know which group the patient was allocated.