The tongue is connected to the jaw, so wherever the jaw goes, the tongue follows. Speech sounds are properly articulated when the jaw and tongue are at midline and symmetrical. So if the jaw and tongue slide left or right as you talk, it can cause a lateral lisp and unclear/slushy speech.
Having control over your jaw is also important for biting and chewing skills, for holding your jaw in place when at rest, and for jaw grading. So for all of the above, it’s important to strengthen and stabilize the jaw at the center.
The Grabber and Y-Chew are among my favorite tools to work on jaw strength and stability (as well as many other oral motor skills). The long extensions m