An aged dentist remains defiant after his malpractice insurer paid out $1 million to the parents of the young girl who died after anesthesia in his office. He claims he's settled nothing, and that he's demanded an investigation. Yet he agreed to stop giving patients an anesthetic cocktail – including the same drug that killed Michael Jackson – during dental procedures, and then recently retired at the urging of the Ohio dental board.

• An 81-year-old dentist has retired under pressure after killing a teen patient

• General anesthesia errors account for as many as 1 death per 100,000 patients

• Anesthesia may be given by someone other than a trained anesthesiologist

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