In 2008, 9-year-old Matthew Berger was just out walking his dog when he tripped over what he thought was a rock. What he actually discovered was far more significant—a nearly 2-million-year-old fossil ...

ABSTRACT: Objective: To compare the stress distribution in the periodontal ligament under different orthodontic forces during canine distalization using long-arm brackets, and to determine the optimal ...

Example of Baikal seal skull specimens. (a) Maxilla and (b) mandible tooth row. (c–f) Enlarged view of maxilla teeth. (c) Yellow arrows represent the number of cusps. (d) Yellow dashed line represents ...

A puppy’s jaw spontaneously regrew after Cornell veterinarians removed a majority of his lower left mandible due to cancer. Although this phenomenon has been documented in children, this is the first ...

Introduction: Orthodontists attempt to maximize treatment efficiency regarding time, tooth position and adverse effects. A new approach, not yet explored, is the activation frequency. Objective: The ...

A 6 year-old spayed female Poodle presented with a mandibular mass. Radiographic examination revealed osteolysis from the right mandibular canine to the fourth premolar, along with horizontal bone ...

A 48-year-old female presented with a Class I crowded malocclusion with moderate maxillary and mandibular crowding. The facial profile was convex with a slightly retrusive mandible due to a vertical ...

The dog's mouth opens wide, her lips pull up at the corners, and her tongue lolls out. Most would look at this face and see an unmistakable grin. But is that really what's going on here? Do dogs use ...

North America, United States, Florida, Pleistocene period, ca. 340,000 to 10,000 years ago. A beautiful and nearly compete fossilized lower mandible from a prehistoric North American lion, Panthera ...