Trap-jaw ants of the genus Odontomachus produce remarkably fast predatory strikes. The closing mandibles of Odontomachus bauri, for example, can reach speeds of over 60 m s(-1). They use these jaw strikes for both prey capture and locomotion - by striking hard surfaces, they can launch themselves into the air. We tested the hypothesis that morphological variation across the genus is correlated ...

A Hanwoo cow with a delayed gestation and abdominal distension was delivered following PGF2α injection. There excessive amniotic fluid, male calf but died immediately. The had no eyes nose, cleft palate on the upper jaw. Gross appearance computed tomography image showed that teeth were spread out both sides due to in jaw, lower jaw positioned upward. other brain parts except cerebellum. These f...

With the newly developed dynamic jaws technology, radiation dose for the cranio-caudal edges of a target can be lowered in the treatment with tomotherapy. We compared dynamic-jaw- and fixed-jaw-mode plans for lung cancer. In 35 patients, four plans using the 2.5-cm dynamic-, 2.5-cm fixed-, 5.0-cm dynamic-, and 5.0-cm fixed-jaw modes were generated. For 10 patients with upper lobe stage I lung c...

Problem statement: Jaw movement analysis, as a clinical aid, can provide an objective basis for understanding and diagnosing jaw musculoskeletal disorders. Therefore, the use and development of devices for quantitatively measuring and analyzing jaw movement have become more common and popular in the clinic. Many types of jaw tracking devices have been developed, but most of them are still not h...

STATEMENT OF PROBLEM Composite mandibular resection resulting in mandibular discontinuity can alter jaw motion, occlusal forces, and mastication, whether or not the jaw is reconstructed. The biomechanical events associated with these changes are difficult to assess clinically and, therefore, are not well documented or researched. PURPOSE The purpose of this study was to model movements of a m...

Osteonecrosis of the jaw may be caused by many different triggers. One of them is described to be the drug or medication related osteonecrosis of the jaw. Since many years bisphosphonates induced the dreaded diagnosis. Recently a drug named denosumab is reported to show similar effects on the jaw. In this case report we present a RANK-Ligand inhibitor associated osteonecrosis of the lower jaw a...

The clinical features, differential diagnosis and treatment of unilateral spasms of the jaw and masticatory muscles are discussed and illustrated by eight cases of unilateral jaw spasms of various aetiologies. These include focal dystonia of the jaw, hemimasticatory spasm with and without facial hemiatrophy, paroxysmal events in multiple sclerosis and tetany. Attention is particularly drawn to ...