What's the difference between jaw and pterygoid?

Jaw


Definition:

  • (n.) One of the bones, usually bearing teeth, which form the framework of the mouth.
  • (n.) Hence, also, the bone itself with the teeth and covering.
  • (n.) In the plural, the mouth.
  • (n.) Fig.: Anything resembling the jaw of an animal in form or action; esp., pl., the mouth or way of entrance; as, the jaws of a pass; the jaws of darkness; the jaws of death.
  • (n.) A notch or opening.
  • (n.) A notched or forked part, adapted for holding an object in place; as, the jaw of a railway-car pedestal. See Axle guard.
  • (n.) One of a pair of opposing parts which are movable towards or from each other, for grasping or crushing anything between them, as, the jaws of a vise, or the jaws of a stone-crushing machine.
  • (n.) The inner end of a boom or gaff, hollowed in a half circle so as to move freely on a mast.
  • (n.) Impudent or abusive talk.
  • (v. i.) To scold; to clamor.
  • (v. t.) To assail or abuse by scolding.

Example Sentences:

  • (1) However, the effect of prior jaw motion and the effect of the recording site on the EMG amplitudes and on the vertical dimension of minimum EMG activity have not been documented.
  • (2) Radiologists may encounter patients with fixed dental prostheses that may produce image distortion on MRI scans of the face and jaw.
  • (3) Based on the findings of our recent longitudinal study on the abnormalities of the dentition in cleidocranial dysplasia (CCD), a hypothesis has been proposed, which makes it possible to predict time of onset of formation of supernumerary teeth and their location in the jaws.
  • (4) The EMG silent periods (SP) produced in the open-close-clench cycle and jaw-jerk reflex were compared for duration before and after treatment with an occlusal bite splint.
  • (5) In 12 patients with lower macrognathia we have applied a technique allowing to prevent the postsurgical recidives of the jaw deformation.
  • (6) At the end of treatment the sagittal jaw relationship was significantly improved.
  • (7) In one horse, the superior aspect of the right ascending ramus of the lower jaw below the coronoid process revealed a gunshot wound; the other skeletons showed no evidence of trauma.
  • (8) Noxious conditioning stimulation of a tooth led to a temporary decrease of the threshold for the jaw-opening reflex elicited from a contralateral or adjacent tooth; only conditioning stimulation at an intensity producing a marked arousal reaction was effective in this respect.
  • (9) The observers assessed the panoramic and periapical radiographs of the teeth, which were evenly distributed throughout the jaws with a 50% probability that either an osteolytic or sclerotic lesion was present.
  • (10) The jaw deviated to the right when he opened his mouth fully.
  • (11) As an initial feasibility study of computer-controlled radiation therapy, its application to produce wedge-shaped dose distributions by moving the collimator jaws has been evaluated.
  • (12) It is important that the dentist knows about disturbances of blood coagulation during and after hemo-dialysis, so that he avoids administration of platelet-inhibiting medication like aspirin and that he recognizes radiologically visible signs of insufficient dialysis in the jaws.
  • (13) Experimentally induced tongue contact with a variety of solid surfaces during lapping (an activity involving accumulation of a liquid bolus in the valleculae) induced neither increased jaw opening nor the additional EMG pattern.
  • (14) Incisal occlusion was shown to have an important part to play in the amount and direction of jaw movement.
  • (15) Hemimasticatory spasm is a rare disorder of the trigeminal nerve that produces involuntary jaw closure due to paroxysmal unilateral contraction of jaw-closing muscles.
  • (16) When, against Real Madrid, Nani was sent off, Ferguson, jaws agape, interrupting his incessant mastication, roared from the bench, uprooting his assistant and marched to the touchline.
  • (17) It is also possible for patients with underlying psychosis to present first to the dental surgeon for jaw correction.
  • (18) A hypothesis is presented as to how certain occlusal relationships and habitual patterns of jaw use may predispose an individual to TMJ internal derangements.
  • (19) Lastly, the CVA indicated major differences across the genus to be located in the teeth and jaws, suggesting diet might be an important distinguishing feature in Colobus.
  • (20) Before and one, two, three, and seven days after the experiment, the following measures were made: (1) superficial masseter and anterior temporalis muscle tenderness (pain threshold), (2) jaw movement (opening and lateral excursion), and (3) current pain level for the right and left sides of the jaw.

Pterygoid


Definition:

  • (a.) Like a bird's wing in form; as, a pterygoid bone.
  • (a.) Of, pertaining to, or in the region of, the pterygoid bones, pterygoid processes, or the whole sphenoid bone.
  • (n.) A pterygoid bone.

Example Sentences:

  • (1) The masseter muscle was always a more efficient producer of vertically oriented bite force than the medial pterygoid.
  • (2) After fracture of the pterygoid hamulus, contraction of the TVP muscle produced expansion of the epipharynx but less than that prior to the treatment.
  • (3) But the opposite dentition can also dictate a fixture installation in the posterior region for a good occlusal stabilization: a specific modality of fixture installation in the pterygoid region has provided a seductive alternative.
  • (4) When the lateral pterygoid muscles are not tender to palpation and the stress test is negative, occlusal therapy is not indicated.
  • (5) To explore the relationships among dysfunction of the two heads of the lateral pterygoid muscle, temporomandibular joint (TMJ) internal derangement, and the mechanism of TMJ sounds, a comparative study was undertaken with electromyography of the two heads of the muscle and arthrography in 38 patients with temporomandibular joint disturbance syndrome sounds.
  • (6) Light and electron microscope observations of tiny nerve branchlets attached to the nerve of the pterygoid canal suggests that the source of sympathetic autonomic fibres in the greater petrosal nerve may not be solely confined to fibres 'recurrent' from the deep petrosal nerve, as hitherto believed.
  • (7) Activity occurred in the masseter and medial pterygoid muscles during the following movements; closing the jaw slowly either without occlusal contact or with occlusal contact and against resistance; free lateral movement to contralateral side, either against resistance or with occlusal contact; protraction of the jaw either without occlusal contact or with occlusal contact; swallowing either saliva or water; incisor gum chewing with either the ipsilateral or contralateral molars; normal mastication; and during forceful centric occlusion.
  • (8) No operative mortality, CSF rhinorrhea, visual damage carotid or cavernous sinus hemorrhage fracture of the medial pterygoid plates or maxilla were encountered in this series.
  • (9) The insertions of the superficial and deep portions of the masseter muscle, the temporalis muscle, the medial pterygoid muscle and the temporalis fascia were simulated with leather bonded to the appropriate areas.
  • (10) Both have an incomplete zygomatic arch with descending jugal process, a complex superficial masseter, a large temporalis and medial pterygoid musculature, and a lateral pterygoid with two heads.
  • (11) Gorette-Nicaise, Awn, and Dhem (1983) as well as the study by Whetten, and Johnston (1985) have shown that neither the absence of the lateral pterygoid muscle nor the physical volumetric expansion of the airway increases condylar growth.
  • (12) The subjects were asked to perform three definite tasks for the masseter muscle (intercuspid occlusion, maximum protrusion, and centric relation with a bite opening of 3mm) and two for the pterygoid muscle (maximum opening and maximum protrusion).
  • (13) Four patients had intraoral exposure of the grafts postoperatively--three in the pterygoid maxillary area and one in the palate.
  • (14) A method to accurately identify in a reproducible way the main axis of the pterygoid process with the help of two small iron balls was contrasted with other methods seen in the literature.
  • (15) We discuss anatomic considerations for the prevention of complications, including injury to the frontotemporal branches of the facial nerve, injury to the superior head of the lateral pterygoid muscle, and inadvertent penetration of the dura.
  • (16) CTHRP was injected individually to jaw-closing muscles (temporalis, masseter, and medial pterygoid) of rats, and their motoneurons including the dendrites were labelled and studied.
  • (17) An unusual case of myositis ossificans of the medial pterygoid muscle has been discussed.
  • (18) However, all seven of the patients tested 1 year after mandibular lengthening demonstrated normal aphasic firing patterns of the lateral pterygoid muscles (inferior belly) during right and left lateral excursions.
  • (19) It is not necessary, at the level of the pterygoid bone situated outside the limits of the arch, to carry out any dental morphology.
  • (20) The cross-sectional areas of the masseter, temporalis, medial pterygoid and lateral pterygoid muscles were determined by means of computer tomography in 16 male subjects with healthy dentitions.

Words possibly related to "jaw"