Yes you can meet Implantologist or periodontist to regrow the bone on the implant threads. It depends how much bone height is reduced and how much out come we can get from procedure

Has your dentist stated steps to do next? It could just be an observation he made. Every implant will lose some bone around it over time. Of course an X-ray would’ve been best to diagnose what’s happening with your implant. The point to note is -are you having pain, redness in that area, irritation in the gums, or your crown has come loose or is trapping food. If yes, please visit your dentist to explain to you the next step. If no, you have nothing to worry about.

Implants failure shows bone loss . improper oral hygiene might also be the reason... Bone grafting helps to recover this.u need to consult dentist for further treatment.

Nothing worrisome. It’s expected and normal. You implant should remain firm and immobile

No need to worry bone loss is comon in 10 yr old implant area If you are having any symptoms visit the dental clinic 

Gradually bone loss happens. As it's been 10 years, so 1mm bone loss is fine.(until you start having any symptoms).

A dental implant is considered to be a failure if it is lost, mobile, or shows peri-implant bone loss of greater than 1.0 mm in the first year and greater than 0.2 mm a year after. Bone grafting around the dental implant by the dentist can help regrow bone.