Second opinion please help

[Ccard]

15 years ago I had a bridge done for 1 tooth and recently it became infected resulting in the 3 teeth being extracted. I am now getting another bridge done but my dentist has noticed the original tooth extracted has roots left behind. We have already started the bridge process and I am suppose to get the new one placed in 7 days. Now is the question do I pay extra, wait 8 weeks for it to heal and get the roots removed or just leave it as its been 15 years and hasnt bothered me