HP 500cc vs 600cc implants? What should I get to have a D/DD? 5'3" 160lbs 36B Pre-op. (photos)

The question is whether a 500cc or a 600cc high profile breast implant will give you full D or DD result.
The answer is, "I don't know." But neither does your plastic surgeon. Or any other plastic surgeon for that matter. Any answer anyone gives you is a guess for two reasons:
No one knows what a D or DD really is. Seems weird but there is no  standard for this. So you probably have a mental picture of what you mean by DD. And your PS has an image of a DD breast. But you have no way of knowing whether you are both picturing the same thing. Statistically, you probably aren't.No one knows exactly how a 500cc implant will change your breasts. Ditto for the 600cc. Or the 550. Or the 700. Breasts are complicated and come in infinite variety. No two respond exactly the same way to an implant.
Even though this is the most common way breast augmentation is done, it's like trying to shoot a target you can't see using a gun with no sights. Hitting a bullseye would be a matter of luck. Luck is not what you want to base a surgery on.
May I suggest 3 things you can do to take luck out of the equation and maximize your chance of getting results that really make you happy?
Select some photos of breasts that you like in terms of size and shape. (Fortunately, it turns out there are plenty of photos of breasts on the internet.) This process will refine your vision and clarify for you what it is you really want for your results.Review the photos with your plastic surgeon. Make sure he or she fully understands your desires and discusses them with you. If you don't have a meeting of minds, don't proceed!Make sure your PS tests the implants he is going to use on you with intraoperative sizers. These are tester versions of the implants that can be used to determine which implants are absolutely best for you. This step does not have to be a guess!
You have my best wishes for a great result!

Without more information or an examination it is difficult to recommend a specific implant. You will be increasing multiple cup sizes with either implant you are considering. Many surgeons have sample implants available that you can "try on" to get an idea for how you may look after surgery. This may help you in your decision.

There are very good sizing systems allowing you to see the difference between 500 mL and 600 mL implants on your breast prior to surgery.

It is very difficult to determine the best lift you will need (recommended based on your photos) or the exact size and shape implant you will require to best match your ideal breast image without an examination by a board certified plastic surgeon. Not just any board certified plastic surgeon, but one with many years of frequently performing breast augmentation surgery including different approaches, techniques and implant choices. This is because several measurements not to mention your breast characteristics are needed to determine the optimal implant size to obtain your goals. Without knowing these dimensions it would be difficult to make this determination. For example, the existing base width of your breast will determine, in many cases, the maximal volume per implant profile that you can accommodate. To illustrate; a 100 cc difference may make a significant difference with a narrow base width breast, but much less of a difference if you have a wide chest wall and wide breast “foot print”. Therefore, just because your friend may have a great result with let’s say a 300 cc implant to make her go from a “A” cup to a “C” cup size does not mean that you will have the same result with the same size implant. The same process goes for just filling in the upper part of your breast without becoming much larger. Further simply placing implants in a bra to determine the size best for you is not always accurate as the bra often distorts the size, is dependent on the pressure the bra places plus the implant is outside your breast and not under it among other variables. Computer software morphing programs that automatically determine the best implant size can be helpful in some but not all cases (e.g. doesn’t work well in my experience with existing implants, sagging or asymmetric breasts). Using “want to be” photos however are useful if simply provided to the surgeon as I will further explain in the link below including silicone vs saline implants

Here are some helpful guidelines. Usually if a woman wears a size 36 AB bra and would like to be a C cup, which is the average size that women wear and the average size bra that is sold, she needs a volume of approximately 350 to 390 cc to make that change. This becomes less if she's wearing a 34 bra, because it has a smaller strap size and the cups have a smaller diameter. A smaller diameter implant would then be a volume of approximately 300 to 350 cc. In the same way if she was more petite, maybe a double zero or size one and wore a 32 AB bra, then to become a 32C cup she would only require about 250 to 300 cc. This is a general number, and of course there are other factors that will affect this. 

Each implant have their benefits. #SalineImplants is made with a #silicone outer shell that is filled with saline water during the surgery. It is filled with sterile saline (salt-water). Since saline is like normal body fluid, it is safe and easily absorbed if the implants were to leakThe #implant shell is ordered in a specified size which can be filled to a minimum or maximum fill amount. This allows the plastic surgeon some flexibility with sizing during surgery. Often times a woman has breasts which vary slightly in size. If one breast is slightly smaller than the other, each implant can be filled to a different amount to create better symmetry. Saline tends to be a little less natural feeling than silicone, but it can also create a more dramatic upper breast appearance, which some women prefer. A new saline breast implants option called Ideal Implant™ was recently FDA approved and was created for women who are not comfortable having silicone implants in their body, but desire a more natural feeling implant than traditional saline implants on the market. The unique structure of the Ideal Implant allows for a similar look and feel as silicone with the safety of saline. #SiliconeImplants are made with a silicone outer shell and are filled with a gummy-bear consistency silicone on the inside. More women tend to choose silicone breast implants due to the natural feel and appearance. Silicone implants are now made of a cohesive gel which are anti-leak even when cut. Look and feel like natural breasts due to the cohesive silicone gel material. New generation silicone gel implants are far superior than those used in the past and have a proven track record of safety. Silicone implants have gone through more testing than any other medical device and are the preferred choice for over the muscle implant placement. To further ensure the safety, the FDA recommends women have periodic MRI testing to ensure their silicone implants are free from any defects. With both implant types there are choices #Shaped implants are all #textured and should not rotate when used properly. In my practice, about 20% of the patients benefit from shaped implants. Your Plastic Surgeon needs to measure you and determine the best shape and size of any implants that are used.

Furthermore, a Breast Lift with the Implants may be something to consider. Getting #BreastImplants without a #BreastLift is usually said to be mistake by many patients who reflect back on the decision. Most breasts will look larger and more droopy with solely implants. They will sag more and sooner, due to the sudden and excess weight. At times it's possible for a “Snoopy” breast or double bubble to develop as a result.

Other factors which contribute to the outcome are size, shape, and profile. The #profile is determined by the amount of #projection versus roundness that the you desire, as well as the #size of the implant and size of your chest. Also, the placement or incision location will also have an effect on profile. Another element to a satisfying result of your #augmentation is realistic #expectations.Talk to your surgeon at greater length and be sure to view before and after pictures and reviews beforehand to gain more reassurance of the procedure.