Dual plane refers primarily to the placement of the breast implant during surgery. The term, coined by a Texan plastic surgeon back in the late 90s, is defined as a breast augmentation procedure that involves placement of the breast implant behind the pectoralis major muscle and partially behind the breast tissue overlying the muscle. The implant sits on two levels inside the chest, which is why it's called "dual plane". Alteration of some of the pectoralis major muscle is also performed to achieve optimal improvement of the breast as well as allowing for a subtle lift for patients with minor drooping (ptosis). This type of implant placement can be performed with any incision (inframammary, transaxillary, or peri-areolar).Dual plane breast augmentation was designed so that the benefits of both subglandular and submuscular placement could be obtained for the patient. The top 2/3 of the breast implant is placed below the pectoral muscle. The muscle provides more coverage so that the implant is less visible and less palpable, lowering the chance of rippling and a visible upper border (the breasts won't look like they're bolted on as much). It gives the breast that nice natural slope.The bottom 1/3 of the implant is placed under the breast itself in the subglandular position. This allows the breast tissue to drape around the implant, contouring itself to the roundness and thereby adopting a pleasing fullness that better emulates a natural breast shape. There are several varieties of dual-plane augmentations that subtly differ one from the next (there are types 1-3). You will receive the most suitable one depending on your goals and the expertise of your surgeon.