9 5 7 . ▁ ▁Life ▁He ▁attended ▁Royal ▁D ental ▁Hospital ▁in ▁ 1 9 3 4 . ▁He ▁then ▁studied ▁medicine ▁at ▁Char ing ▁Cross ▁Hospital ▁Medical ▁School ▁and ▁graduated ▁from ▁there ▁in ▁ 1 9 4 0 . ▁He ▁became ▁an ▁orth od ont ist ▁in ▁M idd les ex ▁County ▁the ▁same ▁year . ▁In ▁ 1 9 4 8 , ▁he ▁joined ▁the ▁Institute ▁of ▁D ental ▁S urg ery ▁at ▁the ▁East man ▁D ental ▁Hospital ▁as ▁Head ▁of ▁the ▁Orth od ont ic ▁Department . ▁Ball ard ' s ▁interest ▁in ▁the ▁field ▁per tain ed ▁to ▁the ▁resp ir atory ▁function ▁and ▁the ▁effects ▁of ▁or of a cial ▁mus cul ature ▁on ▁mal oc clus ions . ▁During ▁his ▁stay ▁at ▁the ▁East man ▁Hospital , ▁he ▁organized ▁a ▁two - day ▁sym pos ium ▁for ▁the ▁orth od ont ists ▁in ▁the ▁country . ▁In ▁ 1 9 6 1 . ▁With ▁the ▁help ▁of ▁John ▁H ov ell ▁he ▁formed ▁the ▁Cons ult ant ▁Orth od ont ists ▁Group ▁( CO G ). ▁ ▁He ▁married ▁Mur iel ▁Bur ling ▁in ▁ 1 9 3 7 ▁and ▁had ▁two ▁children , ▁a ▁son ▁and ▁a ▁daughter . ▁ ▁Ball ard ▁Con version ▁T rac ing ▁ ▁Ball ard ▁described ▁a ▁method ▁for ▁studying ▁the ▁j aw ▁relationship ▁in ▁the ▁An tero - Post er ior ▁direction ▁in ▁ 1 9 5 1 . ▁This ▁method ▁used ▁the ▁ax ial ▁incl ination ▁of