I had #30 & #31 extracted with allografts three months ago. #29 now has two cracks from grinding (after the loss of these teeth my bite is a mess) so my oral surgeon (OS) referred me to a prosthodontist who is preparing a crown. He recommended making a surgical stent, or guide, for the OS to use for the dental implant placement. The OS had no plans to use a stent, but he also had no plan to do a CT prior to placement. I am considering using a different OS, and he doesn't use stents, either, but does do CT scans. My question is - how important is a surgical stent? The cost is $350.00, and if it is highly recommended I will have one made, but I would greatly appreciate hearing what a few more experts think. Thanks so much.