Breast Implant Exchange: Saline to Silicone Implant Exchange Patient is 39 years old, and a mother of 2. The patient was unhappy with her 16 year old saline implants, and her breasts shape. To revise this issue for the patient, Dr. Jaime Perez replaced the old implants with 525cc Silicone implants. The patient wanted to remain a D cup with fuller projection up top. Post op the patient is very satisfied with her results, and loves her new and improved breasts.