Factors that can contribute to<unk> ing include macroglossia (enlarged<unk> , thumb sucking, large tonsils, hereditary factors, ankyloglossia<unk>  tie), and certain types of artificial nipples used in feeding infants, also allergies or nasal congestion can cause the<unk>  to lie low in the mouth because of breathing obstruction and finally contributing to<unk> ing. In addition, it is also seen after prolonged therapy by levodopa in Parkinsonism, also it occurs as extra pyramidal side effect (acute muscular dystonia) after use of neuroleptics (anti-psychotics).
Tongue thrust
Concussion
Nose-blowing
Pressure of speech
Arytenoid adduction
Sidaction
Sinus lift
Cramp