Season 7, Episode 17 - "Hal's Dentist"
26 March, 2006
Hal's friend Trey tells him to come to his dental office when he loses a tooth during a poker game, but their friendship goes into jeopardy when Hal's faced with a $2,000 bill and causes a fight between them. Reese, meanwhile, teaches Lois how to ride a bike, while Malcolm and Dewey find sleeping as their new favorite pastime after finding a new mattress.
