The Efficacy of Oral Myofunctional and Coarticulation Therapy
Umberger, F.G., Johnston, R. (1997)
The authors summarize the current state of knowledge about the relationships between oral myofunctional therapy and articulation therapy. They conclude that considerable evidence has been obtained that indicates that oral myofunctional therapy techniques can improve articulation of sibilant sounds.
Umberger FG, Johnston RG. The efficacy of oral myofunctional and coarticulation therapy. Int J Orofacial Myology. 1997;23:3‐9.