I was seen by Dr Mark Massey at Greater Springfield Endodontics 2 years ago. Dr Mark Massey had a drill that was spinning at full speed as he brought it toward me. He cut my face open below the lips and had to stitch it closed. He told me it was no big deal and offered no discount or compensation for his mistake. I paid over $800 for the visit. I now have a scar on my face. I also noticed that they deleted their facebook page so, no one can see a picture of the accident. I highly recommend anyone besides Dr Mark Massey at Greater Springfield Endodontics in Springfield MO. I live in Springfield, and it definitely worth going somewhere else to have a seasoned endodontist perform future root canals.