Tongue-tie, known clinically as ankyloglossia, is a shorter or tighter than typical lingual frenulum, the band of tissue under the tongue. It can restrict tongue movement, but the important point for parents is that a tongue-tie is only relevant to speech when it actually limits the tongue movements required for specific sounds, and many children with a visible tongue-tie speak perfectly clearly.
After 27 years of pediatric speech therapy, this is one of the most common reasons families arrive in my office already worried, and frequently already scheduled for a procedure. Sometimes the concern is well founded. Often the child in front of me has a tongue-tie and a separate, unrelated speech sound pattern that a release would not have touched.
Does tongue-tie actually cause speech problems?
Sometimes, and less often than the internet suggests.
The professional consensus is more cautious than most parents expect. The clinical consensus statement on ankyloglossia in children, developed by a panel convened by the American Academy of Otolaryngology-Head and Neck Surgery, concluded that a frenulum procedure is an option in older children with speech articulation concerns, but noted that the supporting evidence is limited and of relatively poor quality, and that further study is needed to refine which patients benefit (Messner et al., 2020, Otolaryngology-Head and Neck Surgery).
A more recent scoping review in the American Journal of Speech-Language Pathology examined the symptoms attributed to ankyloglossia beyond breastfeeding and similarly found that many claimed associations rest on thin evidence (American Journal of Speech-Language Pathology, 2023).
None of that means tongue-tie never matters. It means the question is not “is there a tongue-tie” but “is this child’s tongue movement limited in a way that explains this child’s specific sound errors.”
Which speech sounds would actually be affected?
The tongue tip has to elevate to the ridge behind the upper front teeth for a defined set of sounds. If elevation is genuinely restricted, those are the sounds at risk:
- t, d, n, l all require tongue-tip contact at the alveolar ridge
- s and z require a precise tongue position with a narrow airflow channel
- sh, ch, j require the tongue body to lift and retract slightly
- r requires either tip elevation or a bunched tongue body, and is the most variable
What is not on that list matters just as much. Sounds made with the lips, such as p, b, m, w, and f, do not depend on tongue elevation at all. If your child’s errors are mostly lip sounds, or if they substitute whole sound classes in a patterned way, you are almost certainly looking at a phonological pattern rather than an anatomical restriction.
How is it assessed properly?
A functional assessment beats a visual one. What I look for is not how the frenulum appears at rest but what the tongue can do:
- Can the tongue tip lift toward the ridge behind the upper teeth with the mouth open?
- Can it move side to side and sweep the inside of the cheeks?
- Can it protrude past the lower lip without the tip notching or pulling into a heart shape?
- Does the child compensate by moving the jaw to get the tongue where it needs to go?
- And most importantly: do the sound errors line up with the movements that are actually restricted?
That last question is the one that gets skipped. A child can have measurably limited elevation and still have speech errors that have nothing to do with it. Releasing the frenulum in that case removes a restriction and leaves the speech pattern exactly where it was.
What is the right order of operations?
For a school-age child whose main concern is speech clarity, a speech-language evaluation before any procedure is the sequence that protects the family from an avoidable surgery and an avoidable disappointment. The evaluation establishes a baseline, identifies whether the error pattern is motor, phonological, or structural, and gives everyone a way to measure whether anything changed afterward.
If a release is indicated, therapy still follows. The tongue does not automatically learn a new movement pattern because a restriction was removed. Years of compensating create habits, and undoing them is motor learning, which takes practice and repetition, including day-to-day ways to work on sounds at home between sessions.
For infants with feeding or latch difficulty, the sequence is different and belongs to the pediatrician, an IBCLC, and an ENT. That decision is made on feeding grounds, not speech grounds, because speech sounds do not yet exist to evaluate.
How common are childhood speech concerns generally?
Common enough that a tongue-tie is rarely the only thing worth ruling out. The National Institute on Deafness and Other Communication Disorders reports that roughly 1 in 12 children ages 3 to 17, about 7.7 percent, has had a disorder related to voice, speech, language, or swallowing in the past 12 months (NIDCD).
If your child is hard to understand, the useful first step is a full evaluation rather than a search for a single physical explanation. Families in Vero Beach and across Indian River County can start with an evaluation that looks at the whole sound system, and how evaluations are handled in this practice is designed around exactly that question.
Frequently asked questions
Does every tongue-tie need to be released? No. Many children with a visible tongue-tie have full functional tongue movement and clear speech, and need nothing at all. The decision rests on whether tongue movement is genuinely restricted and whether that restriction explains a real feeding or speech problem.
Will a frenectomy fix my child’s speech by itself? Usually not. Removing a restriction does not teach a new movement pattern, and children who have compensated for years generally need speech therapy afterward to establish correct placement. Expect the procedure to open a door rather than walk through it.
At what age should we evaluate tongue-tie for speech? Speech-related evaluation is most useful from about age 3 onward, once a child has enough sounds in their system to assess a pattern. Before that, tongue-tie decisions are typically driven by feeding rather than speech.
Can tongue-tie cause a lisp? It can contribute, because s and z require precise tongue-tip positioning. But most lisps in children are not caused by ankyloglossia, and a lisp alone is not a reason to assume a structural cause without an assessment of actual tongue mobility.
Who should we see first, an ENT or a speech-language pathologist? For a speech concern in a child over 3, a speech-language pathologist first is generally the more informative order. The evaluation clarifies whether a structural referral is warranted and gives the ENT or dentist something specific to respond to.
Does insurance cover the speech evaluation? Coverage varies by plan and by whether services are billed as medical or educational. This is a private practice and families are welcome to call and ask how evaluations and sessions are handled before scheduling.
Schedule an evaluation
If your child is hard to understand and you are trying to decide whether a tongue-tie is part of the picture, an evaluation is the step that answers the question. Contact Vero Speech Therapy to schedule an evaluation for your child.
About the author
Pamela Cerrato, MA, CCC-SLP is a licensed speech-language pathologist with more than 27 years of experience in pediatric speech and language therapy. She holds the Certificate of Clinical Competence in Speech-Language Pathology from the American Speech-Language-Hearing Association and provides individualized evaluation and therapy to families in Vero Beach and Indian River County, Florida.
