Will there be a large difference in size when going from a 425cc hp Sientra anatomical implant to a 475cc hp Mentor round smooth implant?

Answers from doctors (12)


More About Doctor Michelle Roughton, MD

Published on Dec 05, 2019

No. I'll bet you won't be able to tell much of a difference at all with 50 cc difference. It usually takes about 100 cc to see a difference at all. You may like the upper pole shape better though. I like a full round upper pole and round implants IMO does a better job with that. Good luck!

Answered by Michelle Roughton, MD (View Profile)

No. I'll bet you won't be able to tell much of a difference at all with 50 cc difference. It usually takes about 100 cc to see a difference at all. You may like the upper pole shape better though. I like a full round upper pole and round implants IMO does a better job with that. Good luck!

Published on Jul 11, 2012


More About Doctor Christopher Pelletiere, MD

Published on Aug 23, 2019

No, there will just be a small difference. You might notice a change in the upper pole fullness, but I doubt anyone else would look at your breasts and really see a change. Most patients need at least 100cc volume change to see a difference.

I hope this helps,

Christopher Pelletiere, MD

Answered by Christopher Pelletiere, MD (View Profile)

No, there will just be a small difference. You might notice a change in the upper pole fullness, but I doubt anyone else would look at your breasts and really see a change. Most patients need at least 100cc volume change to see a difference.

I hope this helps,

Christopher Pelletiere, MD

Published on Jul 11, 2012


Barry J. Kaplan, D.O.

Published on Jun 03, 2016

You are talking about a very small reduction. 50 cc's is about 1/4 cup. To the naked eye, this will be barely noticeable. Anatomical implants do not give much superior pole fullness.

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Answered by Barry J. Kaplan, D.O.

You are talking about a very small reduction. 50 cc's is about 1/4 cup. To the naked eye, this will be barely noticeable. Anatomical implants do not give much superior pole fullness.

Published on Jul 11, 2012


Kenneth L. Stein M.D. FACS

Published on Mar 23, 2016

There will only be a slight difference.

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Answered by Kenneth L. Stein M.D. FACS

There will only be a slight difference.

Published on Jul 11, 2012


Kristi Sumpter, D.O., F.A.C.O.S.

Published on Mar 22, 2016

A 50cc difference is subtle. I feel like it takes 100cc's to see a noticeable difference.

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Answered by Kristi Sumpter, D.O., F.A.C.O.S.

A 50cc difference is subtle. I feel like it takes 100cc's to see a noticeable difference.

Published on Jul 11, 2012


Larry Leverett, MD, FACS

Published on Mar 10, 2016

No, there will not be a huge difference. 50 cc's equates to a little more than 3 tablespoons. A bra cup size is approximately 200 cc's. So, 50 cc's is a minimal change.

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Answered by Larry Leverett, MD, FACS

No, there will not be a huge difference. 50 cc's equates to a little more than 3 tablespoons. A bra cup size is approximately 200 cc's. So, 50 cc's is a minimal change.

Published on Jul 11, 2012


Paul Wigoda M.D.

Published on Dec 23, 2015

I typically tell my patients that if they want to go bigger, they should go at least 100cc larger to see a difference. The 50cc difference you describe is fairly minimal, so there will not be a large difference. Best of luck.

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Answered by Paul Wigoda M.D.

I typically tell my patients that if they want to go bigger, they should go at least 100cc larger to see a difference. The 50cc difference you describe is fairly minimal, so there will not be a large difference. Best of luck.

Published on Jul 11, 2012


Edward Domanskis M.D.

Published on Dec 08, 2015

Every 5cc is about one tablespoon, so that size increase would be a little less than a cup size. That said, it should not be much of a change.

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Answered by Edward Domanskis M.D.

Every 5cc is about one tablespoon, so that size increase would be a little less than a cup size. That said, it should not be much of a change.

Published on Jul 11, 2012


Stephen Greenberg, MD

Published on Dec 08, 2015

While the difference in volume that you are describing between a 425cc and a 475cc implant might appear slightly larger after your exchange, you might even find that there is not much of a perceivable difference. The difference may come in the overall shape of the breast as you are used to an anatomical shaped implant and are switching to a smooth round implant. The anatomical shaped implants take on a more natural breast shape and slope, so one should expect to have some more upper pole fullness with a smooth round implant than with an anatomical shaped implant.

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Answered by Stephen Greenberg, MD

While the difference in volume that you are describing between a 425cc and a 475cc implant might appear slightly larger after your exchange, you might even find that there is not much of a perceivable difference. The difference may come in the overall shape of the breast as you are used to an anatomical shaped implant and are switching to a smooth round implant. The anatomical shaped implants take on a more natural breast shape and slope, so one should expect to have some more upper pole fullness with a smooth round implant than with an anatomical shaped implant.

Published on Jul 11, 2012


David C. Yao MD, FACS

Published on Dec 08, 2015

Thank you for sharing. The shapes and volumes are slightly different. The smooth HP should show a fuller upper breast. Talk with your PS. Best wishes.

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Answered by David C. Yao MD, FACS

Thank you for sharing. The shapes and volumes are slightly different. The smooth HP should show a fuller upper breast. Talk with your PS. Best wishes.

Published on Jul 11, 2012


The Georgia Institute of Plastic Surgery

Published on Dec 08, 2015

Each 100 cc of implant is equivalent to a cup in a 34 - 36 size women. You will be going up 1/2 cup in volume. Each implant has it's own projection, and you can find this out by asking you surgeon for the projection of the actual style implant that you have and that he/she is using.

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Answered by The Georgia Institute of Plastic Surgery

Each 100 cc of implant is equivalent to a cup in a 34 - 36 size women. You will be going up 1/2 cup in volume. Each implant has it's own projection, and you can find this out by asking you surgeon for the projection of the actual style implant that you have and that he/she is using.

Published on Jul 11, 2012


Body by Ravi

Published on Dec 08, 2015

The answer depends upon how much breast tissue you have to begin with. In general, women who do not have a lot of breast tissue will notice a larger difference in the two sizes compared to somebody who has more breast tissue. Having said that, approximately 50 mL increase in size is approximately 1/2 cup size. As far as anatomic versus round smooth is concerned that will mainly decide your shape but is typically negligible.

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Answered by Body by Ravi

The answer depends upon how much breast tissue you have to begin with. In general, women who do not have a lot of breast tissue will notice a larger difference in the two sizes compared to somebody who has more breast tissue. Having said that, approximately 50 mL increase in size is approximately 1/2 cup size. As far as anatomic versus round smooth is concerned that will mainly decide your shape but is typically negligible.

Published on Jul 11, 2012


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