Issues should be evaluated by a specialist Orthodontist. An actual examination is in order, not just a site-unseen opinion. If teeth and jaws are not properly aligned it can interfere with lip posture. Jaw popping indicates disc out of position. Lips apart when sleeping is normal, especially if overweight. But these issues are not necessarily attributed to your treatment (don't blame the gadget).
Answered 8/4/2022
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