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31 Mei 2018 — If we asked you to tell us what color you think healthy teeth should be, we bet many of you would say a nice, pearly white.. oleh CA Hendrie · 2012 · Dirujuk 34 kali — The lack of effect of whitening teeth on increasing attractiveness beyond that seen in natural tooth colour is in keeping with other findings ( .... 12 Feb 2019 — Everyone's teeth are not the same. Variables in enamel thickness, as well as enamel shade, give off different colors other than white, which are .... Tooth whitening or tooth bleaching is the process of lightening the color of human teeth. Whitening is often desirable when teeth become yellowed over time .... 23 Agu 2019 — Hydrogen peroxide for teeth whitening: What to know ... peroxide caused a noticeable lightening in human tooth enamel after 4 weeks.. Tooth enamel is the outer layer of teeth that protects and keeps teeth white. Learn 5 ways to strengthen your tooth enamel and keep your teeth strong and .... 30 Agu 2021 — Teeth-whitening products with carbide peroxide may be doing more damage to your teeth ... Fish with 'human teeth' caught in North Carolina.. 19 Sep 2016 — How is it that some teeth are more discolored than others when they all receive the same brushing, rinsing, and whitening treatment?. They are a couple of shades darker than that. The enamel itself is a blueish white colour, but it is also somewhat translucent so the yellow of the dentine .... 11 Feb 2020 — Teeth Aren't White to Begin With. To start with, the idea that teeth in their own right are perfectly white is a myth. Even if teeth were to .... The human mouth has 32 permanent teeth by the time a person reaches adulthood. ... Additionally, in toddlers, white spots on the teeth can be caused by .... 8 Des 2017 — Often cows' teeth are used because they give researchers with a larger surface area to study, but sometimes extracted human teeth are tested .... Why Are Teeth White? Our teeth are made up of 3 basic parts; enamel, dentin, and pulp. The top part of the tooth, the crown, is .... Here, we look at the most likely causes of white spots on teeth and give ... The Department of Health and Human Services (DHHS) sets the optimal level of .... 10 Jul 2018 — You may simply be born with teeth that appear more yellow (or whiter) compared to other people's teeth, Outericka said. Part of this has to do .... oleh M Epple · 2019 · Dirujuk 55 kali — The mineral phase of human teeth consists of calcium phosphate in the form of hydroxyapatite,. Ca5(PO4)3(OH) [1–5]. The inner part of a tooth is .... The old expression 'pearly whites' likens human teeth to the colour of pearls because of the era in which this phrase was coined. At the time, pearls were .... 25 Feb 2013 — We have straighter teeth, whiter teeth, more beautiful, shimmery teeth than our parents. But it turns out that we actually have less healthy .... Looking for a brighter smile? Find out why charcoal, oil pulling and apple cider vinegar are not safe ways to whiten your teeth. 060951ff0b