This occurs as a result of the teeth being crooked or too far apart. In some cases, dental malocclusion can be directly linked to speech disorders. A synthesis of research in Avid Science determined that people who have speech articulation issues, such as a lisp, have a high chance of malocclusion.

Can you correct a lisp in adults?

Lisps are common and can be corrected through speech therapy. It is important to treat the patient early, however, adults can also benefit from therapy if they have a lisp.

What causes a lisp later in life?

There are no known causes of lisps. Some people think that using a pacifier after a certain age may contribute to lisps. They believe prolonged pacifier use can strengthen the muscles of the tongue and lips, making lisps more likely.