Show off those pearly whites and enjoy three old time radio mysteries involving teeth and dentists. First, Casey, Crime Photographer thinks a dentist is linked to a colleague's disappearance in "Tooth for Tooth" (originally aired on CBS on July 15, 1946). Then, a victim's teeth hold the key to solving a murder on Whitehall 1212 (known as "The Murder of Duncan Frazier," originally aired on NBC on December 9, 1951). Finally, Dane Clark tries to find out who's blackmailing a dentist in Crime and Peter Chambers (originally aired on NBC on May 18, 1954).