Overall Classification: UNCLASSIFIED//REL TO NATO/ISAF
Related to these planes are the following paired descriptive terms: ◦ anterior – nearer the front surface of the body ◦ posterior – nearer the rear surface of the body AFAMS Dental Advisor Team
Superficial and deep refer to proximity to the skin surface. medial – closer to the midline lateral – further from the midline of the body AFAMS Dental Advisor Team
The 22 skull bones can be classified into two parts: ◦ The Cranium ◦ The Facial Skeleton AFAMS Dental Advisor Team
The Facial Skeleton The Cranium
The maxilla or upper jaw AFAMS Dental Advisor Team
The posterior surface of the maxilla is the tuberosity. AFAMS Dental Advisor Team
Incisive bone (Premaxilla) Maxilla, palatine process Palatine bone Incisive canal palatine foramina Greater Lesser Posterior nasal spine Pterygoid fossa Vomer Medial pterygoid plate: Hamulus tubercle
The alveolar process is the most inferior portion of the maxilla that surrounds and supports the maxillary teeth. AFAMS Dental Advisor Team
The mandible or lower jaw is the strongest and largest bone in the facial skeleton. It is made up of various components; a horizontal horseshoe shaped portion called the body and two vertical portions each called the ascending ramus, which ends in two processes. AFAMS Dental Advisor Team
Where the inferior border of the body meets the posterior border of the ramus, the angle of the mandible is formed. AFAMS Dental Advisor Team
The body of the mandible presents two surfaces. The anterior (external) surface presents a vertical medial line, the symphysis, which terminates inferiorly in the mental protuberance; this produces the chin. AFAMS Dental Advisor Team
Also found on the external surface below and halfway between the apices of the mandibular premolars is the mental foramen. AFAMS Dental Advisor Team
The ramus of the mandible is nearly vertical in position. Its lateral surface is flat and marked by muscular impressions for the insertion of muscles AFAMS Dental Advisor Team
mandibular foramen
The mandibular foramen leads into the mandibular canal which runs through the body of the mandible. The canal conveys vessels and nerves to the teeth and communicates with the outer surface of the body at the mental foramen. AFAMS Dental Advisor Team
The superior border of the ramus is composed of two processes: The Coronoid Process ◦ the most anterior process on the ramus. The Condylar Process ◦ The head articulates with the temporal fossa of the temporal bone, thus forming the temporomandibular joint. AFAMS Dental Advisor Team
This is the most complex type of joint in the body. AFAMS Dental Advisor Team
Normal Occlusion Mouth Wide Open
AFAMS Dental Advisor Team Protrusion Dislocation
There are two basic forms of movements that we need to discuss when referring to the TMJ: Rotation or hinge Translation AFAMS Dental Advisor Team
Overall Classification: UNCLASSIFIED//REL TO NATO/ISAF