Kevin Lee, DMD

I'm interested to know exactly what you mean by 'poor gums.' Have you had gum disease (gingivitis/periodontitis) in the past? Gum disease is really only possible when teeth are present. If this is the case, then when teeth are removed, gum disease in that location of the mouth also will also not be present. What you do need to find out now is the underlying bone volume to determine if dental implants are possible, without bone grafting first. I would suggest seeking out a highly qualified and experienced dentist/surgeon to see if this is an option for you. Often times, some time of imaging/radiograph/xray would be required, such as a panoramic xray or a cone bean CT scan would be needed.

Best

Dr. Kevin Lee

I'm sorry to hear about your accident. From the photos, it is unclear what type of implant prosthesis you have. You mentioned a bar, but I'm not sure whether you have a permanent fixed implant prosthesis, or a removable prosthesis supported by a bar? Based on this uncertainty, I think it would be best to re-visit your dentist who had fabricated the prosthesis for a full and detailed examination and treatment plan. If the implants have not been compromised, I'm sure the case can be salvageable. 

Best,

Dr. Kevin Lee