Dental implant. I have had throbbing pain on/off for almost a week. Dentist said nothing wrong at post op. What should I do?

While it is NOT common for an implant to hurt after placement, sometimes it takes 2 weeks before the area calms down.  However, implants in the location you share can sometimes be close to the nerve in the jaw, and the pressure may never go away.  The doctor would need to take a CBCT to see how close to the nerve they got, and if closer than 2 mm, the implant should be removed.

I would give that area a few weeks to heal before becoming concerned. Sometimes an implant can be placed too close to the nerve canal and cause pressure on the nerve. If it's too close to the nerve, it should be removed. But if a CT was taken prior to implant placement, I wouldn't think that to be the case.