yläleukaa
Yläleukaa, or upper jaw bone, is the central part of the facial skeleton that forms the upper dental arch. In humans there are two maxillae that together constitute the upper jaw, contributing to the roof of the mouth, the floor of the orbits, and the walls of the nasal cavity. Each maxilla consists of a central body and several processes that connect with neighboring bones.
It has a frontal process that articulates with the frontal bone, a zygomatic process with the zygomatic
Relations: It forms part of the orbital floor and the medial wall of the infraorbital groove. It
Development and growth: The maxilla is formed mainly by intramembranous ossification from neural crest cells. Growth
Clinical relevance: The maxilla is involved in dental implants, trauma and Le Fort fractures, sinusitis of the