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Speech Articulatory Characteristics of Individuals With Dentofacial Deformity

de Almeida Prado, Daniela Galvão*; Filho, Hugo Nary; Berretin-Felix, Giédre; Brasolotto, Alcione Ghedini

doi: 10.1097/SCS.0000000000001913
Original Articles
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Purpose: To analyze the speech articulatory characteristics of individuals with dentofacial deformities (DFD) and assess differences compared to individuals with dentofacial balance.

Methods: Sixty individuals participated, being 30 presenting DFD (19 with class III and 11 class II skeletal malocclusion, 18 women and 12 men, age group 18–40 years) and 30 individuals from a control group matched for gender and age. The assessment of the diadochokinesis (DDK) was evaluated using the emissions /pa/, /ta/, /ka/, /pataka/, and /i/.

Results: The individuals with DFD produced fewer emissions per second: at syllable “ka” and sequence “pataka” for the total of individuals; syllable “pa” and sequence “pataka” for women, individuals with class II and class III malocclusion. The parameters related to the irregularity of the cycles were higher for the group with DFD than for the control, as well as emission of the syllable “pa” for the total of individuals, group of class III malocclusion and women, during production of the syllables “ta” and “ka” for all individuals and group of class III and during emission of the vowel “ï” for women.

Conclusions: Differences regarding speed and stability of oral and laryngeal DDK were found among individuals with DFD compared with the control group.

*Piracicaba School of Dentistry, State University of Campinas, Piracicaba

Sacred Heart University

Department of Speech Pathology, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil

Address correspondence and reprint requests to Daniela Galvão de Almeida Prado, Rua Pio Sbrissa 1001, Piracicaba-SP, Brazil, CEP: 13402-330;. E-mail: dani.gaprado@gmail.com

Received 22 December, 2014

Accepted 23 March, 2015

Speech Therapy Department of Bauru School of Dentistry, University of São Paulo, Brazil

This research project was supported by (FAPESP:2009/04621–4).

The authors report no conflicts of interest.

© 2015 by Mutaz B. Habal, MD.