A woman from Westchester who worked as an office manager at a Bronx dental practice was charged Thursday with doing harmful root canals and other procedures even though she was not licensed in the state, prosecutors said.

Valbona Yzeiraj, 45, who claimed to have received dental training in her native Albania, was accused in an indictment with assault, unauthorized practice of dentistry and other crimes stemming from surreptitious dental procedures done while the legitimate dentist she worked for was out of the office, according to prosecutors. The procedures were allegedly done between late 2012 and the summer of 2013.

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The 13-count indictment unsealed in Bronx State Supreme Court charged that when the dentist who ran the practice at 3800 Independence Ave. discovered Yzeiraj's activities he fired her. She then tried to steal $20,000 from the office, according to officials at the Bronx district attorney's office.

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Procedures allegedly done by Yzeiraj, known as "Dr. Val," gave one root canal patient an infection and left another with two years of mouth pain, prosecutors said.

Defense attorney Corey Sokoler couldn't be reached for comment late Thursday.

A spokesman for Bronx District Attorney Robert Johnson said that Yzeiraj pleaded not guilty to the charges at her arraignment Thursday. Judge Stephen Barrett set bail at $20,000, the spokesman added. It was not clear if Yzeiraj had made bail late Thursday.