Understanding Tongue Fasciculations in Infants: A Sign of Lower Motor Neuron Lesion Why Does My Baby's Jaw Quiver? Does your babys tongue look like this when theyre crying? , If your babys tongue looks bowl shaped, heart shaped, or pulled downwards when they cry, this can be a sign of oral restriction often In this speech session, a vibrating brush is used to gently stimulate the childs lips, cheeks, tongue, and jaw muscles., The vibration helps wake up the oral muscles, improves awareness, and prepares