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What is Ohaguro or black teeth?

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What if we talk today about an ancient teeth tradition called Ohaguro? This is the name given to the ancestral dental aesthetic in the Japanese culture. It means black teeth (お歯黒) and it was a practiced between married women, and was related to spiritual beliefs.

At the beginning, the Ohaguro was carried out by the women in the royalty, but then both men and women were using this practice as a fashion tendency, but it was still related to spirituality.

Actually the Ohaguro has many uses and meanings, for example: The Kamuros (the brothel apprentices) painted their teeth black to refer that they have reached adulthood, and that they were ready to have their first client.

Another meanings are: Purity and status. Some of this meanings were not related. For many years the Ohaguro was exclusively by women, because they were supposed to be loyal and obedient to their husbands.

The Ohaguro was also created to protect themselves from bad spirits and omens, because they used to think that the diseases were caused by evil possessions. It was thought that the white of the bone would attract of bad luck and energies, this is why the royalty decided to paint their teeth black, also to be different from others, but as we said, eventually all kind of people follow this as fashion.

As you may see the Ohaguro has had a lot of connotations. To get the black tint for the teeth they used iron powder, cinnamon, and aromatic spices to achieve the lacquered appearance. With the time many other countries decided to follow this tendency, everyone of them had their reasons, some for beauty, other for religion, culture, social status, belief and for health. This countries and regions were: China, Malasia, Laos, Micronesia, India, and also Vietman. Until this days some places still practice the Ohaguro, even when they are not the majority.

Teeth have been always a beauty standard, for example, here in the occident having white and perfect teeth is one of the qualities when you say that someone is attractive, this is why is so important to use brackets as a kid or teenager, or to do regular whitening, this is what some beauty and Hollywood magazines call appeal; another example is the tribe Mentawai from Indonesia, in that place women used to be forced to sharpen their teeth, this was an aesthetic symbol.

In present day there also exists anti-cultural movements, another example as we mentioned is Japan, some people there think that having irregular teeth are pretty, especially in girls and women, because they look innocent and with a child face. But in another post we will talk more about it.

In Japan it was consider vanity to express human emotions, including facial expressions, to dissimulate this emotions, they painted their face white, this was another function of the Ohaguro, so anyone would not identify if they were smiling of feeling sad. Every culture has their own traditions and customs, for more strange they are.

And finally, what do you think about this tradition? Do you think is interesting?

You may be also interested in this post: How can eating disorders affect my teeth?

How can soda affect my teeth?

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Consuming soda can affect eventually your teeth, this is something that can happen to the youngest and to the oldest.

The acids and the sugar of this drinks can affect the tooth enamel, and contributes to the formation of cavities. Some other bad habits that can damage your teeth are clenching your teeth and a wrong hygiene, like do not brushing your teeth in the right way.

Some sodas like the light coke have less sugar, but although that they usually contains acids and many other elements that can affect your health.

This are some diseases that can be caused by an excess consumption of sugar:

Dental diseases:

  1. Cavities
  2. Loss of strenght in your teeth
  3. Loss of enamel
  4. Tooth fall

Body diseases:

  1. Diabetes
  2. Obesity
  3. Arterial hypertension
  4. Cardiovascular diseases

Mental diseases:

  1. Depression
  2. Schizophrenia
  3. Dementia
  4. Adictions


The consume of this drinks has increase dramatically in the United States, mainly in kids and teenagers. Actually doctors and pediatricians has started campigns to promote better healthy habbits, and to warn parents to take better care of them.

It is estimated that teenagers drink at least 12 drinks per day, and kids 4 every day, this is why having coke or soda in your everyday diet is dangerous for your own health. This is not something that just affect your teeth, it can also damage your general health, you can develop diabetes, stop growing and cause several problems to your streght and bones, not mentioning that a sedentary routine can be harmful for your kids.

But what you can do to take care of your oral hygiene?

  1. First, you will have to reduce the quantity of energy drinks and soda that you consume, eventually you will not just take care of your teeth, you will also feel better, with more energy, and it is something natural to lose weight.
  2. Wash your teeth with fluoride and pasta, also use mouthwash at least one time a day. You have to clean your teeth with your toothbrush two or three times. The fluoride strengthens the enamel and reduce cavities.
  3. If you still consume coke or soda, wash your mouth with water to remove the waste.
  4. Fill your refrigerator with healthy beverages, like water, natural juice, and tea. The key is to vary the options you see everyday in front of you, you can be a role model for your children.
  5. Schedule an appointment with your dentist at least three times a year, depending on the results you notice.

In some countries it is not important to have a dental and oral health, because they think that it is not so damaging as cancer or HIV AIDS, or something that can cause death, but they ignore that the mouth is one of the most important body parts and systems in each one of us.

At last but not least, you should know that consuming soda in special occasions is not damaging, it is like everything, if you always consume tobacco, hamburguers, alcohol, you will eventually get tired and sick. Consuming soda is not recommended, but if you like it too much, just moderate it, and also follow your dentist instructions.

You may be also interest in: Being stressed can damage my teeth?

How can eating disorders affect my teeth?

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Some people try to avoid this subject, because it is too delicate, but it is important to know if you have an eating disorder, or if you know someone with this mental disease.

An eating disorder is a mental illness that can be mostly related to a body image, for example, we can mention 3 that are related to the mouth and stomach: Anorexia, bulimia and compulsive eaters.


Consist in avoiding food by self control, the patient wants to be thin. They seem themselves as fat people, and they are never thin enough for them. They can also vomit, use laxatives and diuretics. And also they do a lot of exercise.


They eat compulsively and after eating they vomit, this can be repeated more than one time every day. They also feel guilty and fat, because they consume too much candy and unhealthy food. This is the most harmful mental illness for the mouth and teeth, from the 3 mentioned. It is also related to the use of diuretics and laxatives.

Compulsive eating

This is similar to bulimia, just because they eat in a compulsive way, but the difference is that the patient do not vomit or purge. This kind of disease if one of the most visibles in many countries like the USA and Mexico. They also feel guiltiness.

Each one of this diseases have different consequences. For example, anorexics suffer from xerostomia, which consists in dry mouth, this can weaken your teeth, at any time they could fall out of your mouth. Them can also lose their color.

Bulimia can make you lose all your teeth, depending on your purging habits, this is a terrible practice, because the acids produced by the stomach are expelled through the mouth, hurting your teeth.

Compulsive eating disorder can be also damage, this can provoke cavities and many other diseases.Eating too much does not mean that you are healthier.

But all this mental disorders can also affect your general body health. Woman can lose their period, and both men and woman can lose their hair. Other harmful consequences are: cardiac problems with a big risk of a heart attack, constipation, renal insufficiency, dry mouth and lips, mouth injuries, gums bleeding, extreme sensitivity to cold and hot drinks and food and dental erosion.

Actually, many bulimics have to use dentures due to their mouth and teeth damage.

We can also metion other mental diseases realted to body image and weight, but them are not related so related to the mouth as these three mentioned diseases, but this are: vigorexia, orthorexia, and dismorphic body disorder.

As you can see, mental disorders are highly risky and harmful for your mouth, and body health. The best thing to do is to see a psychologist and also a dentist and a doctor. Mental health is so important and body and teeth health.


Why sports can damage your teeth?

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It must be hard to believe, but sports can damage your teeth, and more than that.

But why does this happen? Dental malocclusion is the possible cause of many pains, like the in the back, in the neck, this also cause of the lose of balance. Dental malocclusion is the medical way to name and incorrect bite.

It is amazing how oral health can affect your general body health while you are doing an sport. If you look closely you may remember that boxers use mouthguards while fighting, to prevent dental injuries. There are two kind of mouthguards: standards or general mouthguards, and custom made, the difference is that the seconds one can adjust to your measure.

The standard mouthguards can have many disadvantages, like been uncomfortable, they adapt less to your teeth shape, and it can intervene that your breath normally.

But there are many other sports that need dental protection, like Rugby, Kickboxing and martial arts. And also dance activities are related, because them need balance and the relaxation of muscles.

When the upper and lower teeth do not occluse in the right way, means that there is a hollow between them, so they can not fill the empty space, this is why the jaws force themselves to solve this problem.

Cavities can cause muscle and joint pain, much more if you are doing activities of high intensity. This may cause inflammation and pain in the blood flow.

If your do not take care of your oral health, the bacterial plaque under the surface of your teeth can reach the blood, and the same blood deposits the bacteria and germs in the muscles with the contact. This generates fatigue.

Sports can be basically harmful for your teeth due to bruxism, this means that clenching your teeth is something wrong. This is why you need to schedule an appointment with your dentist.

The best you can do is to take care of your dental health, by using protection like mouthguards, and regular dental care like using toothpaste and brush your teeth to prevent cavities.