Original Research

The effects of Mandibular Osteotomy on articulation and resonance

Delsa Geffen
South African Journal of Communication Disorders | Vol 25, No 1 | a372 | DOI: https://doi.org/10.4102/sajcd.v25i1.372 | © 1978 Delsa Geffen | This work is licensed under CC Attribution 4.0
Submitted: 14 November 1978 | Published: 14 November 1978

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Delsa Geffen, Psychological and Guidance Service, Transvaal Education Department, Johannesburg, South Africa

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Abstract

Pre- and post-operative speech samples were studied in nine adult cases who received Mandibular Osteotomy. Lateral cephalograms were taken during sustained production of selected sounds and trained listeners judged recordings. In most cases there was an improvement in the general quality of the speech. Considering that the functional  relationships between the speech organs had altered, it would appear that some form of adaptation by the speaker had in fact taken place.

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