Sweet J said:
From what I understand you can get a bridge.
As for the implant: You should get the implant from a guy that ONLY does implants. Your general dentist, if you trust him, should be able to give you some recommendations. If your dentist is offering to do the implant, that would probably be a red flag.
6,000 seems a bit high. I think mine will run a couple grand when all is said and done. The implant itself will be around 1g, and the cap around 1g. But your wife's may be more complicated.
6000 does seem on the high side but may not be unreasonable especially if there is bone or soft tissue grafting to be done.
Generally on a really straight forward case your implant+crown should be around the cost of a threee unit fixed bridge.
That being said many, if not most are not super straight forward. Often there is some form of bone grafting/socket preservation involved, or other factors that can make the case more complex.
If you can get a implant for a grand, by all means get it. Thats a steal. And there is also the cost of the abutment which you have not listed. That can vary in cost but $500 may not be unreasonalble depending what type of abutment is needed.
I am a general dentist who places implants. What you really want is someone who is highly trained. Almost no one...not even specialists .....do
only implants. Often there are many advantages to a general dentist placing the implant since she/he is the one that has to build the crown on it. An implant in a less than ideal position can be difficult to make look "right".
Presuming you are dealing with someone that has sufficient training, you will be fine either way.
You might consider a second opinion. That may help you make a decision you feel good about.