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  • International Journal of Orofacial Myology and Myofunctional Therapy is published by MDPI from Volume 51 Issue 1 (2025). Previous articles were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence, and they are hosted by MDPI on mdpi.com as a courtesy and upon agreement with International Association of Orofacial Myology (IAOM).
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1 November 1994

Thumbsucking as Related to Placement and Acoustic Aspects of /s,z/ and Lingual Rest Postures

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University of Mississippi, Oxford, MS 38677, USA

Abstract

Three hundred seventy-one second graders in rural public schools were evaluated for thumbsucking, rest and swallow postures of the tongue, and articulatory placement and acoustic aspects of /s,z/. Significant relationships were observed between thumbsucking and lower dental or interdental rest and swallow postures as well as acoustic errors for /s,z/. The implications of these relationships are discussed.

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