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These X-rays allow dentists to see if any small cavities are forming in between the teeth “so that we can either prevent it or reverse it before it becomes a big issue,” he tells Yahoo Life.
Enamel may appear yellow/brown with discolouration and/or many pitted white-brown lesions similar to cavities. They are often described as "mottled teeth". [8] Fluorosis does not cause discolouration to the enamel directly, as upon eruption into the mouth, affected permanent teeth are not discoloured yet.
The color of calculus varies, and may be grey, yellow, black or brown. [12] Tobacco: Tar in smoke from tobacco products (and also smokeless tobacco products) tends to form a yellow-brown-black stain around the necks of the teeth above the gumline. [12] Betel chewing. [13] Certain foods and drinks.
Dental cavity, also known as tooth decay, [a] is the breakdown of teeth due to acids produced by bacteria. [6] The resulting cavities may be a number of different colors, from yellow to black. [ 1 ] Symptoms may include pain and difficulty eating.
Later, the fluoride is re-released into the oral cavity from these reservoirs which acts as protection for the teeth against cavities. [36] Currently, there is also no published evidence that indicates that professionally applied fluoride varnish is a risk factor for enamel fluorosis. The varnish is applied with a brush and sets within seconds.
The normal temperature of the mouth ranges between 35 and 36 °C, and a two-degree (°C) change has been shown to drastically shift the dominant species in the plaque. [18] Redox reactions are carried out by aerobic bacteria. This keeps the oxygen levels in the mouth at a semi-stable homeostatic condition, which allows the bacteria to survive. [18]
Rare microbiomes from two 4000-year-old teeth could help scientists further understand the impact dietary changes had on the evolution of a cavity-causing bacteria.
Since 1920, various derivatives of "chalky teeth" have appeared in the academic literature to describe specific dental anomalies. Most references are to enamel defects that have a chalky appearance (white, cream or brown) and are of developmental origin (i.e. amelogenesis imperfecta, enamel hypomineralisation, dental fluorosis, molar hypomineralisation).