Articulation is the process by which sounds, syllables, and words are formed when your tongue, jaw, teeth, lips and palate alter the air stream coming from the vocal folds.
A child has an articulation problem when he or she produces speech sounds incorrectly.
Cause: Articulation problems may be caused from a physical problem, hearing loss, or may be related to other problems in the mouth, such as dental problems. However, most articulation problems occur in the absence of any obvious physical disability. The cause of these articulation problems may be faulty learning of speech sounds.