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In 1952, Posselt carried out some investigations on 65 dental students between the age of 20–29, in an attempt to examine the capacity of the mandible for movement in the occlusal and sagittal planes. [2] Since the mandible can go through a vast number of different movement paths, Posselt decided to start by studying the "border movements", a ...
The terms alveolar border, alveolar crest, and alveolar margin describe the extreme rim of the bone nearest to the crowns of the teeth. [ 7 ] [ 8 ] [ 9 ] The portion of alveolar bone between two adjacent teeth is known as the interdental septum (or interdental bone).
A profile of a smile, exhibiting a deviated dental midline about 2 mm to the left (the midline is measured as the mandible in relation to the maxilla.Even though the teeth are in an edge-to-edge position, the teeth are in maximum intercuspation; this patient possesses a Class III occlusion.
the inferior border of the mandible (lingual surface) inferiorly; the medial pterygoid muscle medially (the space is superficial to medial pterygoid) the ascending ramus of the mandible laterally (the space is deep to the ramus of the mandible)
A common trick is to ask the patient to say the name "Emma," as the position of the mandible immediately after completing the word is a rough estimate of the patient's proper VDO. The position after saying "Emma" is referred to as the vertical dimension at rest, or VDR. Historically, the VDO has been estimated at 3 mm less than VDR because a ...
The mylohyoid line is a bony ridge on the internal surface of the body of the mandible. The mylohyoid line extends posterosuperiorly. The mylohyoid line continues as the mylohyoid groove on the internal surface of the ramus. The mylohyoid muscle originates from the anterior (front) part of the mylohyoid line. [1]
Buccal space abscesses typically cause a facial swelling over the cheek that may extend from the zygomatic arch above to the inferior border of the mandible below, and from the anterior border the masseter muscle posteriorly to the angle of the mouth anteriorly. [1] Unless another space is also involved, the tissues around the eye are not swollen.
Submasseteric abscesses are relatively rare, and may be confused with a parotid abscess or parotitis. [2] They tend to be chronic. [3] The submasseteric space may be involved by infections that spread from the buccal space. [1] Sometimes mandibular fractures in the region of the angle of the mandible may cause an infection of the submasseteric ...