Dent in Cleavage, Both Breasts. What is It? (photo)

Thanks for your inquiry, I think you are seeing the edge of the muscle fibers.  Sometimes there are two rows of origins of the muscle in that location.  It is very early and should expect improvement over time.  Please be seeing your plastic surgeon regularly to discuss.

Thanks for your question and pictures.  It is possible that not enough muscle was released towards the chest bone and the implant is not able to fill that area out as well as the rest of the breast.  An exam would help answer the question best.