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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]
Mylohyoid ridge is a ridge on the inner side of the bone of the lower jaw extending from the junction of the two halves of the bone in front of the last molar on each side. When there is loss of posterior teeth, the alveolar ridge gets resorbed, causing extremely sharp ridge and making the mylohyoid ridge prominent.
The mylohyoid muscle or diaphragma oris is a paired muscle of the neck. It runs from the mandible to the hyoid bone , forming the floor of the oral cavity of the mouth . [ 1 ] It is named after its two attachments near the molar teeth .
This risk increases 10 fold if the tooth is close to the inferior dental canal containing the inferior alveolar nerve (as judged on a dental radiograph). [8] These high risk wisdom teeth can be further assessed using cone beam CT imaging to assess and plan surgery to minimise nerve injury by careful extraction or undertaking a coronectomy ...
A periapical abscess may spread into the sublingual space if the apex of the tooth is above the level of attachment of mylohyoid, and the infection erodes through the lingual cortical plate of the mandible. Signs and symptoms of a sublingual space infection might include a firm, painful swelling in the anterior part of the floor of the mouth.
Fabian FM (2006). "Observation of the position of the lingula in relation to the mandibular foramen and the mylohyoid groove". Ital J Anat Embryol. 111 (3): 151–8. PMID 17312921. Tuli A, Choudhry R, Choudhry S, Raheja S, Agarwal S (2000). "Variation in shape of the lingula in the adult human mandible". J. Anat. 197. ( Pt 2) (2): 313–7.
The mylohyoid nerve (or nerve to mylohyoid) is a mixed nerve of the head. It is a branch of the inferior alveolar nerve . It provides motor innervation the mylohyoid muscle , and the anterior belly of the digastric muscle .
Mylohyoid: by its own nerve, a branch of the inferior alveolar (from the mandibular division of trigeminal nerve), which arises just before the parent nerve enters the mandibular foramen, pierces the sphenomandibular ligament, and runs forward on the inferior surface of the mylohyoid, supplying it and the anterior belly of the digastric.