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When enough acid is produced so that the pH goes below 5.5, the acid dissolves carbonated hydroxyapatite, the main component of tooth enamel. [7] The plaque can hold the acids in contact with the tooth for up to two hours, before it is neutralized by saliva.
In 1963, a 7-Eleven store near an Austin, Texas, university began to stay open all night for student shoppers. It was such a success that other stores in the chain adopted the 24/7 hours, and ...
Fluoride varnish is widely used in the United Kingdom, following guidelines from multiple sources backing its efficacy. Public Health England, a UK government organisation sponsored by the Department of Health, released guidance in 2014 recommending fluoride varnish application at least twice yearly for children and young adults. [13]
Consequently, enamel, unlike many other tissues of the body, has no way to regenerate itself. [17] After destruction of enamel from decay or injury, neither the body nor a dentist can restore the enamel tissue. Enamel can be affected further by non-pathologic processes. Enamel is covered by various structures in relation to the development of ...
The perception of tooth colour is multi-factorial. Reflection and absorption of light by the tooth can be influenced by a number of factors including specular transmission of light through the tooth; specular reflection at the surface; diffuse light reflection at the surface; absorption and scattering of light within the dental tissues; enamel mineral content; enamel thickness; dentine colour ...
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The claim: Donald Trump can't travel to Canada because he is a convicted felon. A Dec. 3 Threads post (direct link, archive link) offers a theory as to why Canadian Prime Minister Justin Trudeau ...
Meerdo showed the CBS News Texas I-Team how scammers can take a real video and use AI tools to replace a person's voice and mouth movements, making them appear to say something completely different.