silas j. kloehn (november 7, 1902 – february 20, 1985) was an american orthodontist who was part of the journal "the angle orthodontist" for 40 years. due to his contributions, the journal transitioned from a dependent organization in 1940s to an independent organization in the 1950s. his work was also instrumental in the revival of cervical traction and nance's arch-length analysis in orthodontics.