Horizontal intracortical connections may form one substrate for representational plasticity in somatosensory cortex. Electrophysiological mapping demonstrated the finer details of the representations of the hand, lower jaw, neck, and face in area 3b of normal macaque monkeys. Injections of two fluorescent tracers then defined the extent to which horizontal connections crossed from the face into...

INTRODUCTION Management of growing patients with severe developmental jaw abnormalities can be very difficult. Early surgical intervention may be warranted in situations where function (e.g., mastication, swallowing, breathing, or speech) and/or psychological well-being could be negatively affected. Many surgeons and orthodontists are reluctant to recommend a surgical treatment option for growi...

BACKGROUND Jaw complications, including osteoradionecrosis, are significant sequelae of radiation therapy (RT) for oral cancers. This study identifies the impact of patient, tumor, and treatment characteristics on the development of jaw complications in patients treated with RT. METHODS The Surveillance, Epidemiology, and End Results (SEER)-Medicare database was used to identify patients trea...

We have previously shown that injection of the inflammatory irritant and small-fiber excitant mustard oil (MO) into the temporomandibular joint (TMJ) region can reflexively induce a prolonged increase in the activity of both digastric and masseter muscles in rats. It is possible that peripheral excitatory amino acid (EAA) receptors play a role in this effect, because MO-evoked increases in jaw ...

Eccentric jaw exercises has been known to cause muscle soreness but no studies have so far examined to what extent temporal summation mechanisms within the exercised muscles are changed. The purpose of the present study was to investigate the effects of an eccentric biting exercise on the temporal summation, mechanical pressure sensitivity and jaw muscle activity. A total of 15 healthy men part...

BACKGROUND Jaw bone and iliac bone are the most frequently used autologous bone sources for dental implant placement in patients with atrophic alveolar ridges. However, the comparative long-term stability of these two autologous bone grafts have not yet been investigated. The aim of this study was to compare the stability of simultaneously placed dental implants with autologous bone grafts harv...

Radiopaque jaw lesions are frequently encountered at radiography and computed tomography, but they are usually underevaluated or underdescribed in radiology reports. A systematic approach to the evaluation of radiopaque jaw lesions is necessary to diagnose the lesion or at least provide a meaningful differential diagnosis. To evaluate a radiopaque jaw lesion, the first, most important step is t...

PURPOSE The purpose of the article is to present 8 new cases of metastatic tumors occurring in the jawbones, their clinical features , diagnostic workup and management. PATIENTS AND METHODS The records of 8 patients with metastatic jaw lesions were reviewed. Demographic data, presenting symptoms, primary tumor site, radiographic findings, bone scintigraphy , histopathology and clinical manage...

The human jaw stretch reflex is a short-latency excitatory response of the jaw closing muscles to a rapidly imposed downward stretch of the mandible. Typically, the jaw stretch reflex has been evoked in children by using a hand-held reflex hammer. Understanding the development of the jaw stretch reflex has been hindered due to lack of experimental control of stimulus magnitude, motoneuron pool ...

A 40 year old male subject came to MNJ Institute of Oncology and Regional Cancer Centre, Hyderabad with complaints left lower molar tooth ache for 7 months swelling jaw, which gradually increased in size over 2 months. The patient is unable open his mouth completely restriction jaw movements.History weight loss. He a chronic smoker 20 years takes alcohol occasionally.