Here, we document in-vivo bite forces recorded from wild piranhas. Integrating this empirical data with allometry, bite simulations, and FEA, we have reconstructed the bite capabilities and potential feeding ecology of the extinct giant Miocene piranha, Megapiranha paranensis. An anterior bite force of 320 N from the black piranha, Serrasalmus rhombeus, is the strongest bite force recorded for ...

background and objective: scorpion sting and snakebite are the important problems in some area such as iran that must be addressed. this study was to investigate temporal pattern of scorpion sting and snakebite incidence in patients referred to masjedsoleiman’s main hospital, during 24 months from 21 march 2008 to 20 march 2009. materials and methods: it was an analytical study to scrutiny of m...

Associated with the increased popularity of cats as pets in American households has been an increase in the number of cat bites reported to health departments. Bite reports from Dallas, TX, for 1985 were analyzed for different aspects of the cat bite event, including characteristics of the cats, the people bitten, the wounds, and the attack events. Cat bites and scratches constituted 25 percent...

introduction diabetic foot is a clinical disorder, which is commonly seen in patients with diabetes mellitus. it is also the major cause of below knee amputation in the world. there are many underlying causes such as neuropathic, ischemic, and infectious causes for diabetic foot. local or systemic complications may develop after snake bite. case presentation we reported a very rare case, involv...

Certain aspects of malocclusion, particularly deep bite, can be related to periodontal pathology and the healthy of temporomandibular joints (TMJ). In orthodontics, deep bite has always been considered as a difficult anomaly to correct, but also as the one most hindering to solving the problems resulting from other associated malpositions. A case report of deep bite and crossed bite of permanen...

Bite mechanics and feeding behaviour in Tyrannosaurus rex are controversial. Some contend that a modest bite mechanically limited T. rex to scavenging, while others argue that high bite forces facilitated a predatory mode of life. We use dynamic musculoskeletal models to simulate maximal biting in T. rex. Models predict that adult T. rex generated sustained bite forces of 35 000-57 000 N at a s...

Although considered a safe modality for monitoring spinal cord function, motor evoked potentials (MEP) may cause tongue laceration in rare cases. Bite blocks are essential in order to prevent tongue and mucosal injury during monitoring with MEP, but there is no consensus on the ideal bite block to use for this purpose. Potential concerns include tongue necrosis from prolonged use of an oral air...

Models of mammalian mastication predict that bite force is affected by both the degree of mouth opening (gape angle) and the point along the tooth row at which force is transferred to a food item (bite point). Despite the widespread use of these models in comparative analyses, experimental data documenting bite force in non-human mammals are extremely limited. The goal of this study is to docum...