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.
Internal factors causing tooth discoloration. 1  Teeth appear to be greyish-blue to brownish-yellow. Cause. 2  Teeth appear to be greyish-black. Cause 1. 3  Brownish-yellow or white patches at the surface of a tooth. Cause. Early tooth decay. Disturbance during the development of tooth. If a deciduous tooth is so decayed that the pulp is exposed, the bacteria, via the apex of the tooth, will cause an infection in the vicinity of the developing permanent successor.