Projection and width for breast implants?

Nothing is set in stone and every patient is different based on skin elasticity, genetics, and measurements.  I recommend an in-office examination as well as a detailed discussion with a surgeon who you are comfortable with and who is a board-certified Plastic Surgeon certified by the American Board of Plastic Surgery.

Best wishes!

Dr. DesaiHarvard Educated, Beverly Hills & Miami Beach Trained, Double-Board Certified Plastic Surgeon

Ideal projection for a breast implant depends on patient's desire and varies from patient to patient. What is important however is to use implants that have a diameter that fits within the base diameter of the breasts. 2 cm more in width means that your implants will extend 1 cm towards the midline and 1 cm towards the sides. Things that will need to be considered are 1. distance between the breasts in the midline: if not much then 1 cm migration of the implant medially may result in symmastia (joining of the two boobs in the middle without a gap in between) 2. chest width: if the chest is narrow, then the 1cm increase in width may mean the implant hanging off the edge of the chest and resulting in a side boob that encroaches in to your armpit. 3. Amount of tissue cover: It is best to place the implant under existing breast tissue. The implant will only be covered by subcutaneous fat if the edges extend beyond the breast base. This may not be adequate tissue cover and the edges of the implants may end up being more visible and palpable. In summary, you need to select your implants in consultation with your plastic surgeon, who can guide you properly depending on the characterestics of your chest.

The base diameter (width) of an implant is one of the most important measurements to consider when sizing a patient for breast implants.  Implants that are wider than the patient can result in more "side boob" and nipples that aren't properly centered on the breast mound.  Having said that, the 2 mm difference between your current implants and the ones you're considering is very small (it's a 2 millimeter difference, not a 2 centimeter difference) and would probably be reasonable.  When considering the projection of the implants, which profile implant will achieve your goals depends on the look you're trying to achieve and the natural size and shape of your breasts.  High profile silicone implants look a little perkier and can look less natural than moderate plus profile implants but, in my opinion, can look quite nice (saline high profile implants look less natural than silicone high profile implants).Talk with your plastic surgeon about your current concerns and goals.  Perhaps they can show you photos of other women with the profile implants you're considering, which may help you decide on which is likely to achieve your desired look.

The higher profile implants have narrower base diameter with more projection to accommodate larger sizes in smaller frames.Your measurements and goals need to be discussed with your plastic surgeon. Vectra 3D imaging can also be helpful in our consultations.

You are over analysing this.  Get an in person evaluation and some recommendations and then choose your implants at to your in-person sizing visit with the guidance of the surgeon.  Usually high profile implants are reserved for patients who want a lot out front but are too narrow to accomplish that.  Height and weight and "curviness" all enter in and it cannot be decided in advance.