title: The twenty-five cent crack detector.
mesh_terms: D004396:Coloring Agents; D003387:Cracked Tooth Syndrome / Q000175:diagnosis*; D006801:Humans; D008722:Methods; D014082:Tooth Fractures / Q000175:diagnosis*; D014092:Tooth Root / Q000293:injuries*
chemical_list: D004396:Coloring Agents