Incorrect Statements and Citing Errors Regarding the Effect of Ankyloglossia on Speech in Cordray et al., 2023

There is a great deal of misinformation among professionals about the effect (or lack thereof) of ankyloglossia on speech. Consequently, many children undergo unnecessary frenotomy procedures that do not improve their speech and may cause unnecessary complications. This letter points out several erroneous statements in Cordray et al. (2023) about the effect of ankyloglossia on speech. In addition, it identifies articles that were incorrectly cited to support these statements. This letter also reveals significant errors of omission, including the results of the systematic review from the Agency for Healthcare Research and Quality, which found that there is insufficient evidence to conclude that ankyloglossia affects speech. Another omission was the consensus statement from the American Academy of Otolaryngology-Head and Neck Surgery Consensus Report, which states that ankyloglossia does not typically affect speech. Finally, this letter details the reasons why ankyloglossia is highly unlikely to affect speech.

Contrary to statements made in Cordray et al. (2023), there is no evidence that ankyloglossia affects speech production, and therefore, it is highly unlikely to be the cause of a speech sound disorder. This is because even with severe restriction of tongue tip movement, a compensation (or alternative method of production) can be used to produce lingual phonemes with the same acoustic output.