Which procedure would help correct volume loss form fractional Co2 and laser genesis? (photos)

9 months post full face and scalp fractional Co2 and Laser Genesis done prior at the same treatment. 6 months post treatment I began experiencing aggressive volume loss that was not present prior. I have deep indentions at demarcation zones on scalp. They both follow my parietal zone and onto forehead. I have depressed lines on the crest of my forehead. I have volume loss along my right forehead and temple region that leaves a constant shadow. What has caused this? What can be done?