My Kid Can’t Say his S and Z sounds!: What is a Lisp? Learn about the different types of lisps in part 1 of this 3-part blog series on Lisps and Tongue Thrust! Read More Articulation, speech therapy, lisp, tongue thrustKate JureviciusJanuary 8, 2019tongue thrust, lisp, speech therapy, speech pathologist, interdental lisp, palatal lisp, speech therapist, speech intervention