Lower Pole Fullness - should I be looking at tear drop implants instead of round silicone?

You did not post photos, so I cannot be specific. I am not a fan of the teardrop implants since the round ones become teardrop shape when you stand. Tear drop implants are textured and I prefer smooth implants for less long-term risks. You may need a lift or your implants may be sitting high from a capsule. Photos would be very helpful.

To make an assessment regarding the outcome of any plastic surgery procedure, we generally need to see a complete set of proper before and after pictures.
If you don’t have before, and after pictures, then ask your surgeon to forward the pictures they took.
Based on the information provided, we can make an assessment and therefore we can’t really give you any useful information.
Follow up with your provider or schedule in person second opinion consultations with other plastic surgeons in your community.
Best,
Mats Hagstrom MD