How can I have the dent in my cleavage corrected? (Photo)

Thank you for the pictures. I agree with the other experts that the easiest solution be fat grafting to the deformity. This may take more than one operation to get the correction that's needed. 

It looks like a pocket issue but would need to examine you in person to know for sure.  Either see your PS or another BC PS in your area.

I offer repair of this issues via fat grating techniques of Dr Sydney Coleman. The micro droplet technique could offer a better appearance... 

It looks like a pocket issue with the implant.  Some of the answers using fat to camouflage it maybe a solution, but an exam in person is essential. A pocket revision possibly using Strattice may be necessary to eliminate that problem. Good luck.

Thanks for your question and photo. For a  proper answer in in person exam would be helpful as photos alone are not sufficient to understand what the problem is. Depending on the cause, the solutions may vary.  Probably the simplest would be fat grafting into the area of indentation.  Otherwise, alteration of the pocket, change of implant to a stiffer form stable implant, and/or adding an acellular dermal matrix (Strattice) to adjust the pocket are among the possibilities, all of which are rather more complex. Discuss with your surgeon, or second opinion. All the best.