In spite of our obsession with whiter teeth, most healthy teeth tend to have a light yellow hue. The outer layer of your teeth – the enamel – is a blue-white color. The middle layer – the dentin – is a thick tissue with a slightly yellow tinge.
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 never come in contact with a discoloring agent, they still would appear slightly off-white in their natural state. The visible portion of teeth is comprised of dentin and enamel.
Non-White or Yellow Teeth are Unhealthy
So, more often than not, yellow teeth are actually stronger than pearly white ones–so long as they're cleaned regularly.
A good rule of thumb when determining how white your teeth should be is to look at the whites of your eyes. Whether whitening at home or undergoing treatment by a professional dentist, you should be aiming for a shade of white similar to that of your eyes.
Natural Enamel Thickness & Translucency
Enamel is on the surface of every tooth and it has a natural hue of white. However, the underlying dentin layer has a slightly yellowish color. This yellowish hue shows through the enamel in almost everyone, but more so for those with naturally thinner or more translucent enamel.
Consuming Certain Foods and Drinks
Other teeth-staining foods include coffee, citrus fruits and juices, soft drinks, teas, berries, tomato-based sauces, curry, balsamic vinegar, and soy sauce. Ingredients in these foods can seep into your enamel (the outermost covering of your teeth) and cause discoloration.
Reader's Digest quoted Adriana Manso, a clinical professor in UBC's faculty of dentistry, for an article about how whitening agents weaken teeth. He said “bleaching products contain hydrogen peroxide that diffuses through the enamel.
The white of your teeth actually comes from the outer layer, the enamel. Healthy enamel is like strong bone and protects the inner layers of your teeth. Protecting your enamel is a good way to maintain white teeth. Some people still have naturally whiter teeth than others.
Yellow or discolored teeth can be unattractive causing teeth to look prematurely aged, or dirty. Patients with discolored teeth may feel embarrassed of their smile and hide their smile in photos or while laughing. White, bright smiles can help patients feel more confident in professional and personal interactions.
Brushing your teeth is meant to remove harmful bacteria and plaque but not to whiten them. As recommended by your dentist, brushing twice a day is vital because it prevents cavities and tooth decay. Brushing alone will not whiten your teeth, though, and even whitening toothpaste only has a minimal effect on your teeth.
Enamel is the hard, whitish, translucent substance that coats our teeth and prevents decay from setting in, but as we age, enamel naturally starts to gradually wear away. As enamel disappears, the yellow dentin inside the teeth becomes more visible, making the teeth appear more golden than ivory.
Glide a finger along the gums, they should be firm and pain-free. Red, white or swollen gums are immediate red flags. In addition, your tongue should also be pink and firm. Every time you brush your teeth, remember to also brush your tongue and remove any plaque that may appear as a white film on the tongue.
As the enamel erodes and more dentin is exposed, the teeth may appear yellow. Cracks and chips. The edges of teeth become more rough, irregular, and jagged as enamel erodes. Smooth, shiny surfaces on the teeth, a sign of mineral loss.
What Is Tooth Discoloration? Tooth discoloration is when the color of your teeth change. They don't look as bright or white as they should. Your teeth may darken, turn from white to different colors, or develop white or dark spots in places.
What Can Be Done to Whiten Yellow Teeth? If you're looking for a radical change in the coloring of your teeth, you need professional-grade whitening to get the job done. Your cosmetic dentist can provide treatment that penetrates deep into the enamel and removes years of stains with a powerful bleaching agent.
They are actually covered by thin sheets of resin or porcelain called veneers. These tiny scale-like items can be used to reshape teeth, make crooked teeth look straight, or make naturally off-white teeth look impeccably white.
If you see celebrities with perfectly white, straight, and uniform-looking teeth, they likely have veneers. Unlike teeth whitening, veneers are more permanent. There are various types of materials used, but porcelain and composite are the most common types.
The reality is that not brushing your teeth before bed is bad news. The American Dental Association (ADA) recommends brushing your beautiful smile twice a day. Skip a session, and you're on your way to encouraging the growth of bacterial buildup in the form of plaque, which can lead to cavities and even gum disease.
Having yellow teeth can be embarrassing, but doesn't necessarily mean that your teeth are unclean or unhealthy. Rather than worrying about your dental cleaning routine, you should instead focus on the products that you eat, drink and smoke.
Tooth enamel does not grow back, but it can be restored to some degree by remineralization. Using mineralized toothpaste and mouthwash can strengthen your remaining enamel as the minerals will be drawn to the weak spots in your teeth and bond with the surface.
As we age, our enamel thins from years of wear and eventually exposes the yellowish color of dentin. Others' teeth may be yellow simply because of genetics or by inheriting dentinogenesis imperfecta and amelogenesis imperfecta, which causes teeth to develop improperly.
Brush the inside, outside, and chewing surfaces of your teeth. Brushing with a whitening toothpaste has also been scientifically shown to whiten your smile, according to a 2018 study. These whitening toothpastes contain mild abrasives that scrub the teeth to remove surface stain, but are gentle enough to be safe.
For about two to six weeks, you can use dentist-recommended whitening toothpaste and brush twice a day. You can use a certified whitening mouthwash which usually takes about three months to produce visible results.
Yellow teeth are not usually the sign of a health problem, but a dentist can check for enamel loss and tooth decay. Natural remedies can help people whiten their teeth at home. A dentist can also offer professional teeth whitening.