October 25, 2019 By Lynn Schneider; Editor, ArchWired.com First Molars are the teeth just behind the Second Premolars (Second Bicuspids). They have a level surface with four cuspals (points). They are also sometimes called the Six Year Molars.Synonyms: Six Year Molars, 6 Year MolarsRelated Articles: Glossary: Second MolarsGlossary: MolarsAbout the TPA Orthodontic ApplianceGlossary: Forsus Appliance« Back to Glossary IndexRelated Terms:Term: Second BicuspidsTerm: Bicuspid TeethTerm: MolarsTerm: Cuspal