Aimar destroyed my molar during a root canal by drilling right through the tooth, creating a perforation. I had to go to another dentist to repair the damage, which Aimar had not told me about, even though he knew he had done it. I saw him give me a very weird look as I was leaving.
Finally, he accepted his culpability and agreed to pay for the repair. Several years later, I experienced new pain in that tooth. Another dentist took Xrays and told me that Aimar did not fully complete the nerve removal. The tooth had to be re-root canalled.