21. Dr . Ali Nankali continued the masticatory force study and observed a number of mastication acts by individuals using computer. 22. The human jaw mainly moves through the action of four muscles on each side, known as the muscles of mastication . 23. The anterior division gives off branches to the four main muscles of mastication and a anterior belly of the digastric muscle. 24. The muscles of mastication originate on the skull and insert into the mandible, thereby allowing for jaw movements during contraction. 25. Dentists replace missing, damaged, and severely decayed teeth by �xed or removable prostheses to restore or improve mastication function. 26. The function of this premolar is similar to that of canines in regard to tearing being the principal action during mastication . 27. On the basis of observations carried out on himself he described the two-phase or temporal mastication called after him. 28. The babirusa, however, is an herbivore, and has extra maxillary teeth to allow for proper mastication of plant material. 29. Severe trismus may occur in when the muscles of mastication are involved in an odontogenic infection, making any surgical treatment impossible. 30. His findings indicated that the face acts as a pillar that carries and disperses tension caused by the forces produced during mastication .
