Hi Pia and welcome to the HM Forum.

The dual plane technique is a technique that can be used to achieve a breast augmentation and to catch a natural look of the breast.
The implant is positioned under the pectoral muscle and the breast tissue so after the swelling reaction and the bruising goes out the patient will have a natural breast looking.
This technique can be done on different cases and we have to consider each situation from patient to patient.
The main thing is to give to the patient the most natural look for her new breast.