A 3-year-old girl from California who went to a dentist’s office for a fairly routine procedure Monday died for unknown reasons. “And I stood up and went outside because I was like, ‘they are coming for a kid,’ but I never thought it was for my child,” Avila told Fox40. David Thompson, the administrator of Children’s Dental Surgery Center in Stockton where the minor operation happened, said that she had a negative reaction to the anesthetics during treatment.