A Queens dentist who moonlights as a youth basketball coach was busted for toting child porn – homemade films that investigators are examining to see if they feature his underage players, authorities said yesterday.

City cops arrested Dr. Bruce Schneider Monday at his Woodside home after New Jersey cops linked him to four videotapes of an adult fondling preteen and teenage boys. Schneider, 45, left his gym bag of videos Nov. 20 at a Marlboro, N.J., elementary school where he coaches seventh-graders, authorities said.