My dentist made a comment yesterday..he had prepped a tooth for a crown..said..I'm surprised how quickly I was able to take an impression (for permanent crown)..About 10 minutes for the area to be free of blood. with you on coumadin..Also had 2 fillings..lots of drilling..No bleeding..No pain.. I felt like I had had a stroke for about 4 hours until the numbness wore off.(around my mouth).. Rinsing with a glass of water and couldn't find my mouth. Bonnie