Should You Correct Dental Misalignment Before Speech Therapy? - Rehabilitation

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Speech Therapy


Hello, doctor.
Does having misaligned teeth affect speech? I have a muffled voice, so I am considering speech therapy, but my bite is not correct.
Should I get orthodontic treatment first before pursuing speech therapy?

Mr. Chen, 20~29 year old female. Ask Date: 2012/09/11

Dr. Chen Wayda reply Rehabilitation


It is advisable to undergo orthodontic treatment first.

Reply Date: 2012/09/11

More Info


Dental misalignment can indeed have an impact on speech clarity. When teeth are not properly aligned, it can affect how sounds are produced and articulated. This is particularly true for certain phonemes that require precise tongue placement and airflow, which can be hindered by irregular dental structures. For example, sounds like "s," "z," "t," and "d" may be affected if the teeth are crowded or if there are gaps that disrupt the normal flow of air. Additionally, misaligned teeth can lead to improper jaw positioning, which can further complicate speech production.

Regarding your question about whether to pursue dental correction before speech therapy, it is generally advisable to address significant dental misalignments first. This is because speech therapy can be more effective when the oral cavity is in a proper anatomical position. If the teeth are corrected, it can provide a more stable foundation for the tongue and lips to function optimally during speech. This means that once the dental issues are resolved, you may find that your speech improves naturally, or at least that speech therapy can be more effective in addressing any remaining issues.

In your case, since you mentioned that your speech sounds unclear and you have concerns about your dental alignment, it would be prudent to consult with both an orthodontist and a speech-language pathologist. The orthodontist can evaluate the extent of your dental misalignment and recommend a treatment plan, which may include braces or other orthodontic appliances. Once your teeth are aligned properly, the speech-language pathologist can then assess your speech patterns and provide targeted therapy to improve clarity.

It's also important to consider that if you have existing speech issues, they may not solely be due to dental misalignment. Factors such as muscle tone, oral motor skills, and even neurological conditions can contribute to speech difficulties. Therefore, a comprehensive evaluation by a speech-language pathologist can help identify the root causes of your speech issues and determine the best course of action.

In summary, while dental misalignment can affect speech clarity, it is often beneficial to correct these issues before engaging in speech therapy. This approach can enhance the effectiveness of therapy and lead to better outcomes. However, it is essential to have a multidisciplinary approach, involving both dental and speech professionals, to ensure that all aspects of your speech and dental health are addressed comprehensively.

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