PURPOSE: To characterize the vocal extension profile of women with dentofacial balance using phonetography. METHODS: Took part of this study 22 female students with ages between 18 and 29 years (x = 20±2 years), all Brazilian Portuguese speakers, without vocal disorders or vocal training, who presented balanced face pattern I and dental-occlusal harmony. The subjects answered a specific self-response form, and were submitted to anthropometric assessment of the face, dental-occlusal evaluation, phonetography examination, and acoustic analysis of the usual fundamental frequency of the participants' voices, carried out in the post-menstrual period. RESULTS: The values found for the different parameters analyzed were: minimum fundamental frequency: x= 167,32±22,27 Hz or x= 40,09±2,37 st, maximum fundamental frequency: x= 908,45±210,93 Hz or x= 69,09±4,13 st, voice extension: x= 29,00±3,85 st, minimum intensity: x= 69,32±4,07 dB, maximum intensity: x= 113,14±6,10 dB, maximum dynamic extension: x= 3,91±5,71 dB, phonetogram area: x= 709,50 ±182,92 dB.st ou x= 31,93±8,23 cm², usual fundamental frequency of the vowel "a": x= 211,00±22,55 Hz. CONCLUSION: The present study obtained the minimum and maximum intensity levels for different frequencies achieved by the participants, as well as the usual fundamental frequency, establishing reference values for the vocal extension profile of Brazilian woman without voice disorders and with dentofacial balance.
Voice/physiology; Fonation/physiology; Voice quality; Speech acoustics; Face; Stomatognathic system
