I'm using a TAP appliance, and I noticed that I can move my lower jaw forward and back with appliance in place (even after inserting metal tab into slot). Out of my mouth, I can see that there is a lot of play, 3 or 4mm or so, where the lower section can move forward and back.
Is this supposed to lock? I'm afraid that the purpose will be defeated if I pull my lower jaw back while I'm sleeping.
Again, I realize that the metal tab goes into the slot, but that doesn't keep the front and back pieces locked.