• Effects Of Hawley Retainers On Consonants And Formant Frequencies Of Vowels 

      Kayikci, Mavis Emel Kulak; Akan, Seden; Ciger, Semra; Ozkan, Soner (E H Angle Education Research Foundation, Inc, 2012)
      Objective: To assess (1) whether Hawley retainers cause speech disturbance and (2) the duration of speech adaptation to Hawley retainers with objective and subjective tests. Materials and Methods: Twelve adolescents, aged ...