| jaw bone | The jaw bone. (27 Sep 1997) |
|---|---|
| jaw cysts | Saccular lesions lined with epithelium and contained within pathologically formed cavities in the jaw; also nonepithelial cysts (pseudocysts) as they apply to the jaw, e.g., traumatic or solitary cyst, static bone cavity, and aneurysmal bone cyst. True jaw cysts are classified as odontogenic or nonodontogenic. (12 Dec 1998) |
| jaw, edentulous | The total absence of teeth from either the mandible or the maxilla, but not both. Total absence of teeth from both is mouth, edentulous. Partial absence of teeth in either is jaw, edentulous, partially. (12 Dec 1998) |
| jaw, edentulous, partially | Absence of teeth from a portion of the mandible and/or maxilla. (12 Dec 1998) |
| jaw fixation techniques | The stable placement of surgically induced fractures of the mandible or maxilla through the use of elastics, wire ligatures, arch bars, or other splints. It is used often in the cosmetic surgery of retrognathism and prognathism. (12 Dec 1998) |
| jaw fractures | Fractures of the upper or lower jaw. (12 Dec 1998) |
| jaw jerk | A spasmodic contraction of the temporal muscles following a downward tap on the loosely hanging mandible. Synonym: chin jerk, chin reflex, jaw jerk, mandibular reflex, masseter reflex. (05 Mar 2000) |
| jaw joint | <anatomy, dentistry> The joint that connects the lower jaw to the skull. (12 Jan 1998) |
| jaw neoplasms | Cancers or tumours of the maxilla or mandible unspecified. For neoplasms of the maxilla, maxillary neoplasms is available and of the mandible, mandibular neoplasms is available. (12 Dec 1998) |
| jaw reflex | A spasmodic contraction of the temporal muscles following a downward tap on the loosely hanging mandible. Synonym: chin jerk, chin reflex, jaw jerk, mandibular reflex, masseter reflex. (05 Mar 2000) |
| jaw relation record | A registration of any positional relationship of the mandible in reference to the maxillae. These records may be any of the many vertical, horizontal, or orientation relations. (12 Dec 1998) |
| jaw repositioning | The changing of any relative position of the mandible to the maxillae, by altering the occlusion of the natural or artificial teeth or by surgical means. (05 Mar 2000) |
| jaw skeleton | That part of the skull derived from the embryonic pharyngeal arches; it comprises the facial bones of the facial skeleton (under bone) and is distinct from that part of the skull which forms the neurocranium or braincase. Synonym: cranium viscerale, visceral cranium, jaw skeleton, splanchnocranium. Origin: viscero-+ cranium Cartilaginous viscerocranium, those elements of the foetal skull derived from the second and succeeding pharyngeal arch cartilages. Membranous viscerocranium, membranous bones, developed in the foetal skull, that overlie maxillary and mandibular components of the first pharyngeal arch cartilage. (05 Mar 2000) |
| jaw-working reflex | <syndrome> An increase in the width of the eye lids during chewing, sometimes with a rhythmic elevation of the upper lid when the mouth is open and ptosis when the mouth is closed. Synonym: Gunn phenomenon, Gunn's syndrome, jaw-winking phenomenon, jaw-working reflex, Marcus Gunn phenomenon, Marcus Gunn syndrome. (05 Mar 2000) |
| unstrained jaw relation | The postural relation of the mandible to the maxillae when the patient is resting comfortably in the upright position and the condyles are in a neutral unstrained position in the glenoid fossa. Synonym: rest jaw relation, unstrained jaw relation. (05 Mar 2000) |