he was born in new york (manhattan), new york in 1895. he attended phoenix public schools until he attended stanford university as a pre-dental student and received his d.d.s degree from university of california in 1919. after graduation, he returned to phoenix to practice general dentistry for next 8 years. in the year 1927, tweed decided to join angle school of orthodontia after giving up his private practice. there under edward angle, charles spent few years gaining knowledge of the field. he was chosen by edward angle to assist in preparing the edgewise bracket for introduction and manufacture. he then returned to phoenix to work as a private practice orthodontist and eventually ended up moving to tucson, arizona.