The skulls without malocclusions (98 %) had broad hard palates with «U-shaped» arches, and proper alignment of teeth. (brianpalmerdds.com)
This can cause a high, narrow, arched hard palate, and sometimes encourage a tongue thrust swallow, if the baby uses the tongue as a «stop» to cut down the flow of milk from a teat with a larger hole. (tonguetie.net)
When the baby is latched on shallowly, the nipple is being compressed between the tongue and the upper hard palate. (naturetonurture.net)