maxillary

max·il·lar·y (mks-lr)

adj.

Of or relating to a jaw or jawbone, especially the upper one.

n.

A maxillar; a jawbone.

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maxillary

[mak′səler′ē]

Etymology: L, maxilla, upper jaw

pertaining to the upper jawbone.

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maxillary (mak´siler´ē),

adj pertaining to the superior jaw.

maxillary antroplasty

(mak´siler´ē an´trōplas´tē),
n the addition of bone or other material to the antral floor of the sinus for the purpose of accommodating dental implants.

maxillary arch,

n the upper dental arch and its supporting bone.

maxillary artery,

n (internal maxillary artery), an artery that arises from the external carotid artery just below the level of the mandibular neck in the substance of the parotid gland. Its many branches include the middle meningeal, lower alveolar, temporal, pterygoid, masseteric, and buccal arteries, and the posterior superior alveolar and infraorbital arteries.

maxillary deficiency,

n a maxilla whose structure is incomplete, such as in a cleft palate.

maxillary fracture,

n a break in one or both of the maxillary bones; frequently sustained in automobile accidents and contact sports injuries.

maxillary labial frenum,

n a vertical band of oral mucosa located between the midlines of the maxillary central incisors, which connects the attached gingiva to the upper lip and safeguards against any excessive motions.

maxillary nerve,

n See nerve, maxillary.

maxillary retrusion,

n See retrusion, maxillary.

maxillary sinus,

n See sinus, maxillary.

maxillary sinusitis,

n an inflammation of the mucosa lining the air sac in the maxillary bone. It can mimic in symptoms a pulpal infection of the maxillary posterior teeth.

maxillary torus

(mak´siler´ē tor´s),
n See palatal torus.

maxillary tuberosity,

n See tuberosity, maxillary.

maxillary vein,

n a path of drainage for the pterygoid plexus of veins in the upper neck region. It is posterior to the mandibular condyle and merges with the superficial temporal vein in the parotid gland to form the retromandibular vein.

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maxillary

emanating from or pertaining to the maxilla.

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maxillary collapse

includes failure of the maxilla to grow, as in achondroplastic dwarfism, or atrophy due to turbinate atrophy, as in atrophic rhinitis. The result is a dishing or depression of the face.

maxillary cyst

a cyst that occurs in young horses and causes sufficient distortion of the bone as to obstruct the nasal passage.

maxillary myositis

a localized myositis of unknown origin which occurs in young horses. It causes inability to eat or to suck the mare. The muscles of the cheeks are hard.

maxillary process

an embryonic fold which develops from the first visceral arch and expands to produce the rostral bones of the upper jaw.

maxillary sinusitis

infection in the maxillary sinus, often from an infected tooth. Causes local facial swelling and nasal discharge. See also malar abscess.

maxillary swelling

a unilateral swelling which is usually an indication of an osteomyelitis, as in actinomycosis of cattle, tooth-root abscess of dogs or sinusitis in horses. Bilateral swellings are characteristic of osteodystrophia fibrosa in dogs and horses.