The solar system is a pretty busy place. Itâs got all kinds of planets, moons, asteroids, and comets zipping around our Sun. But how did this busy stellar neighborhood come to be? Our story starts about 4.6 billion years ago, with a wispy cloud of stellar dust. This cloud was part of a bigger cloud called a nebula.
Other causes of yellow teeth include antibiotic use or excessive fluoride intake in young children, which can cause yellow-stained adult teeth later. However, according to dentistry professor Mauli Simrativir, antibiotics and high fluoride levels cause blotching, rather than an overall yellow tone to the teeth.
However, dental plaque can also cause tooth decay, and periodontal problems such as gingivitis and chronic periodontitis. When plaque is not removed adequately, it causes an accumulation of calculus (tartar - it has a yellow color) at the base of the teeth, near the gums. Calculus is harder to remove, and can only be removed professionally. Plaque and tartar eventually irritate the gums. Gingivitis may also have other causes, including: Changes in hormones - which may occur during puberty, menopause, the menstrual cycle and pregnancy. The gingiva may become more sensitive, raising the risk of inflammation.