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Young boy during a speech and myofunctional assessment with a therapist at a table

Speech Sound Disorders: When Myofunctional Therapy Can Help

If your child is difficult to understand, or seems to be behind other children their age when it comes to talking clearly, you may be wondering whether what you’re seeing is just normal development or something that needs a closer look. Speech disorders in children are one of the most common reasons families receive a referral to a speech pathologist ¹. Fortunately, with the right assessment and treatment plan, most children make excellent progress .

In this article, we’ll walk through what speech sound disorders are and what causes them. Furthermore, we will explain how speech pathologists assess and treat these conditions, and where a specific approach called myofunctional therapy may or may not fit into the picture . As you’ll see, treatment is never one-size-fits-all. Instead, clinicians always shape therapy around the individual child ³.

What Is a Speech Sound Disorder?

A speech sound disorder is a difficulty producing sounds correctly for a child’s age ¹. Consequently, it affects how easily others can understand them. However, it’s important to distinguish this from the normal variation in how young children learn to talk. Most kids substitute, simplify, or mispronounce certain sounds as a typical part of development. Therefore, they often grow out of it without any intervention at all ¹.

Speech-language pathologists generally group speech sound disorders into two broad categories ¹:

  • Articulation disorders — difficulty physically producing specific sounds (for example, a lisp where ‘s’ is said as ‘th’).

  • Phonological disorders — difficulty with the broader patterns or rules of sound use (for example, consistently leaving off the ends of words).

Some children present with a mix of both, while others have related conditions such as childhood apraxia of speech ². This is exactly why a proper assessment matters. The label alone doesn’t tell you which treatment approach will help ³.

Signs of a Speech Sound Disorder in Children

Every child develops at their own pace. However, here are some general signs that may indicate it’s worth having your child assessed ¹:

  • Family members or unfamiliar adults regularly struggle to understand your child’s speech past age 3–4

  • Specific sounds are consistently missing, substituted, or distorted well beyond the age most children have mastered them

  • Your child seems frustrated or avoids talking because others do not understand them

  • Speech difficulties are affecting confidence, friendships, or participation at school

  • A teacher, doctor, or educator has raised a concern

If any of this sounds familiar, it doesn’t automatically mean something is “wrong.” Nevertheless, it gives you a good reason to book an assessment with a speech-language pathologist.

How Speech Pathologists Assess and Treat Speech Sound Disorders

When you bring your child in for an assessment, a speech-language pathologist evaluates several key areas ¹. They will look at sound production, oral-motor function, hearing, and broader language skills. Additionally, they assess how the speech issue affects daily life ¹, .

From there, clinicians build treatment recommendations using what’s known as evidence-based practice ³. This framework combines three core elements:

  • The best available research evidence

  • The clinician’s professional expertise and clinical judgment

  • The individual child’s assessment results, needs, and circumstances

This is a deliberately individualised process. Two children with a similar speech difficulty on the surface may end up with quite different treatment plans ¹. This happens because the right approach depends on the specific pattern identified during assessment, not a generic checklist.

Treatment options a speech pathologist might draw on include traditional articulation and phonological therapy techniques ¹. Additionally, they may use language-based approaches or supporting methods like myofunctional therapy, depending on what the assessment reveals , .

Speech pathologist conducting myofunctional therapy exercises with a young girl in a clinic setting

What Is Myofunctional Therapy?

Myofunctional therapy is a structured program of exercises . It aims to improve the function, strength, and resting posture of the mouth and face muscles — including the tongue, lips, and jaw , . Rather than targeting individual speech sounds directly, it works on the underlying muscular patterns that support them , .

A speech pathologist (or an allied provider working alongside one) typically delivers myofunctional therapy through guided exercises . The child completes these exercises both in-session and at home over a period of weeks or months . Ultimately, consistency and practice are key to seeing change, similar to any other muscle-retraining program.

What Does Myofunctional Therapy Address?

Myofunctional therapy generally targets patterns such as :

  • Tongue thrust — where the tongue pushes forward against or between the teeth during speech or swallowing, rather than resting correctly

  • Low oral rest posture — the tongue, lips, or jaw resting in a position that isn’t optimal for typical speech and oral development

  • Reduced oral-motor strength or coordination — muscles that are underdeveloped or working less efficiently than expected

  • Related habits — issues like prolonged thumb-sucking or mouth breathing, which a broader care team (including dentists or ENTs) may also help address

The main idea is straightforward: when these muscle patterns contribute to a speech difficulty, improving them can support clearer speech production alongside other therapy techniques , .

Who Might Myofunctional Therapy Help?

This is the part that matters most: myofunctional therapy is not for every child, even every child with a speech sound disorder. It tends to be considered only when an assessment specifically identifies oral-motor or muscular patterns — like the ones above — as a likely contributing factor. Many speech sound disorders have nothing to do with oral-motor function at all, and for those children, myofunctional therapy simply wouldn’t be an appropriate recommendation.

It’s important to be upfront here too: the research base behind myofunctional therapy is still developing. , That doesn’t mean it isn’t effective for some children, but it does mean we don’t yet have enough high-quality evidence to say precisely which children are likely to benefit most. Because of this, myofunctional therapy is never used as a stand-alone, universal solution. Where it is recommended, it’s typically used as one part of a broader, individualised treatment plan, not the treatment plan itself.

If your speech pathologist raises myofunctional therapy as an option, they can explain why it may be relevant to your child’s particular pattern of difficulty, based on their assessment and the available evidence. As with any intervention, decisions about whether to include myofunctional therapy should consider evidence-based practice, clinical expertise, and your family’s preferences, priorities and circumstances.

How Treatment Decisions Are Made

It’s worth repeating the most important message in this article: there is no single “right” treatment for a speech sound disorder that applies to every child ¹, .

Speech pathologists carefully weigh up research evidence, clinical training, and assessment results before recommending a path forward ³. For some children, that might mean standard articulation therapy ¹. For others, it might include a phonological approach . Finally, for a smaller group of children with clear oral-motor factors, myofunctional therapy may serve as a supporting piece of the plan , .

This case-by-case approach isn’t a lack of certainty. On the contrary, it’s what good clinical practice looks like ³.

When to See a Speech-Language Pathologist

If you notice any of the signs discussed earlier, or if you simply want peace of mind, the best next step is a formal assessment ¹. Early intervention consistently leads to stronger outcomes . Even if your child’s speech is developing typically, an assessment can offer valuable clarity and direction.

  1. American Speech-Language-Hearing Association. (n.d.). Speech sound disorders: Articulation and phonology [Practice portal]. Retrieved August 18, 2026, from https://www.asha.org/practice-portal/clinical-topics/articulation-and-phonology/
  2. American Speech-Language-Hearing Association. (n.d.). Childhood apraxia of speech [Practice portal]. Retrieved August 18, 2026, from https://www.asha.org/practice-portal/clinical-topics/childhood-apraxia-of-speech/
  3. American Speech-Language-Hearing Association. (n.d.). Evidence-based practice (EBP). Retrieved August 18, 2026, from https://www.asha.org/research/ebp/
  4. American Speech-Language-Hearing Association. (n.d.). Orofacial myofunctional disorders [Practice portal]. Retrieved August 18, 2026, from https://www.asha.org/practice-portal/clinical-topics/orofacial-myofunctional-disorders/
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  7. Evidence base for oral motor treatment. (2019). The ASHA Leader. https://leader.pubs.asha.org/doi/10.1044/leader.IN6.24092019.8
  8. American Speech-Language-Hearing Association. (2022). Optimizing outcomes for children with phonological impairment: A systematic search and review of outcome and experience measures reported in intervention research. Language, Speech, and Hearing Services in Schools. https://pubs.asha.org/doi/10.1044/2022_LSHSS-21-00132