2 weeks post-op and developed a dent under one breast, near the scar line. (photos)

Congratulations on your breast augmentation. The dent you see is most likely a deep suture used to close the incision. I expect that it will smooth out as your implants drop. Be sure to discuss this with your surgeon/

The dent is likely due to an absorbable suture under the skin which has become more apparent as the swelling resolves. Discuss with you surgeon so that they can re assure you that this will resolve in time as the sutures dissolve.

Breast augmentation incisions are usually closed in layers, using absorbable suture. This photograph is probably showing a combination of things between swelling going down, deep sutures, and changes in how the implant sits in its pocket. I would consider that a visit to your plastic surgeon would go far to decrease your concerns.