What is depression of the mandible?
The anterior buccal mandibular depression (ABMD) is a bilateral symmetrical depression located anterior to the mental foramen and extends under the alveoli of the first premolar to the central incisor. The prevalence, dimensions and contents of the ABMD in cadavers of fetuses and adult modern humans were evaluated.
What are the depressions in the mandible and maxilla called?
The inferior portion of the ridge divides and encloses a midline depression called the mental protuberance. The edges of the mental protuberance are elevated, forming the mental tubercle. Laterally to the ridge and below the incisive teeth is a depression known as the incisive fossa.
What is the location of submandibular fossa lingual salivary gland depression on the mandible?
The most common location is below the mandibular canal, within the submandibular salivary gland fossa and often close to the inferior border of the mandible, but it can also be found in the anterior part of the mandible.
What is lingual mandibular sequestration?
The diagnosis is lingual mandibular sequestration (LMS), which arises, as the name implies, in the mandibular molar region. The natural alignment of the teeth usually provides a sheltered environment, protecting the tissue from chronic assault and contamination from debris.
What muscle depresses the jaw?
The lateral pterygoid muscle
The lateral pterygoid muscle functions as the sole muscle of mastication to causes depression of the mandible.
What is fossa in dentistry?
Fossa – A shallow rounded or angular depression. Cingulum – A convex area on the lingual surface of the anterior teeth, near the gingiva.
Which bone is referred to as the cheek bone?
zygomatic bone, also called cheekbone, or malar bone, diamond-shaped bone below and lateral to the orbit, or eye socket, at the widest part of the cheek. It adjoins the frontal bone at the outer edge of the orbit and the sphenoid and maxilla within the orbit.
What is the submandibular fossa?
The submandibular fossa is a concavity in the lingual part of the mandibular body, inferior to the mylohyoid line, in the lower molar region, where part of the submandibular gland is situated.
What is sequestration in dentistry?
It is the process of separating necrotic bone from living or healthy bone. A sequestrun is formed due to the resorption of living bone bordering the dead or necrotic bone.
What is dental sequestration?
Oral ulceration with bone sequestration (OUBS) describes a site-specific intraoral ulcer that covers exposed, non-vital bone in patients lacking any etiological factor known to induce osteonecrosis.