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Maxilla is the bone of the upper jaw. It is single, having fused from the two sides during embryological development. It is next in size to the mandible in the whole skull.  It forms the major part of the roof of the buccal cavity (assisted by the palatine bone at the back), nasal cavity, orbital floor and parts of the pterygopalatine and the infratemporal fossae.

The maxillary body has the following processes

        Zygomatic process which articulates with the zygomatic bone on the side

        Frontal process which articulates with the frontal  bone superiorly

        Alveolar process which holds the teeth of the upper jaw

        Palatine process which articulates with the palatine bone (horizontal plate) posteriorly

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