Rugrats (1991)

Season 2: Episode 50

While Tommy and Angelica are hanging out at Susie's house, the three of them are watching an edutainment-video on dental hygiene. Susie explains that her parents had gotten the video because her older brother, Edwin, had recently lost one of his baby teeth and received money from the Tooth Fairy after he put the tooth under his pillow. Angelica doesn't believe the story until Edwin shows that he really did lose a tooth by smiling at her, and showing that he had lost one of his front teeth. This gives Angelica an idea.