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.
Other possible causes of receding gums include: 1  Poor oral hygiene. 2  Mouth trauma or injury could make the gums to recede. 3  Occlusion problems / Misaligned or crooked teeth. 4  Grinding or/and clenching teeth is also putting teeth under excessive pressure, sometimes resulting in gum recession.eceding Gums. Receding gums (or gingival recession, or gum recession) is called the condition when the gum tissue surrounding the teeth is lost or pulled away, exposing the roots of the teeth.