As electric-white movie star smiles become increasingly popular, more and more people seek to correct their dental imperfections. Black triangles between your teeth, called open gingival embrasures, ...

Craze lines are hairline cracks in teeth. They don’t often turn into deep cracks, and are considered cosmetic in nature. But they can lead to cavities, if you don’t have proper dental hygiene. Craze ...

Figure 1 shows a spline shaft and teeth together. The teeth of a hob form a trapezia with two lines from sides under angle @. See Figure 1, which shows a spline shaft and teeth, pictured together. If ...

Invention of the gear-hobbing process about 150 years ago revolutionized not only gear fabrication, but also gear design. Basically, a hob or shaper cutter traverses the gear blank to generate teeth.