Sabrina Grant, of Framingham, says her anger turned to rage when her 10-year-old son got home, because she discovered the wrong tooth had been yanked.
Grant tells WBZ-TV the school's principal has apologized, but she feels that isn't enough. She thinks whoever pulled the tooth should face charges of assault and child abuse.
The email she got from the school said the school nurse had checked her special needs son after the tooth was pulled last week and determined he was fine.
The superintendent of schools says an investigation is under way.