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Oral hygiene

life science Maturity 11-13 Next article →

Oral hygiene is the practice of keeping the oral cavity clean to prevent disease and issues like bad breath.

06-10-06smile
06-10-06smile

It is a vital part of overall health because it prevents dental diseases. The most common issues are tooth decay, also known as dental caries, and various gum diseases. These include gingivitis, which is inflammation of the gums, and periodontitis, a more serious condition. Maintaining good hygiene helps prevent these problems before they start. It is not just about having white or straight teeth. A mouth can be hygienic even if the teeth are crooked or stained.

To understand how decay happens, we must look at dental plaque. Plaque, or dental biofilm, is a sticky, yellow film of bacteria.

Toothpasteonbrush
Toothpasteonbrush

When you eat fermentable carbohydrates like sugar, these bacteria convert the sugar into acid. This acid causes the breakdown of the adjacent tooth structure. If plaque stays on the surface, it can harden into calculus. Calculus is made of calcium phosphate minerals and live microorganisms. Unlike plaque, calculus is hard and attached to the tooth. It can only be removed by a dental professional. If left untreated, this can lead to bone loss and loose teeth.

Effective cleaning requires a two-step process: brushing and interdental cleaning. A toothbrush alone is not enough because it only removes about 50% of the plaque on tooth surfaces.

Dental flossing 9344
Dental flossing 9344

This is why interdental cleaning is essential. You can use tools like floss, tape, or interdental brushes to clean between the teeth. For brushing, many professionals recommend a systematic approach. Instead of back-and-forth motions, you should angle the bristles at 45 degrees toward the gums. Using small circular motions at this angle helps remove plaque from the gum line. Brushing for at least two minutes is much more effective than brushing for only 45 seconds.

Modern tools offer different ways to manage plaque. Manual toothbrushes use nylon bristles on a handle to reach the back of the mouth.

Six-sided toothbrush
Six-sided toothbrush

Electric toothbrushes use moving or vibrating heads to help clean. There are two main types: sonic and oscillating-rotating. Sonic toothbrushes vibrate at a high frequency to create fluid activity that aids plaque removal. The oscillating-rotating type uses constant clockwise and anti-clockwise movements. Some studies suggest that powered toothbrushes reduce plaque and gingivitis more than manual ones. However, these tools can be more expensive and harder on the environment.

Humans have used many different methods to clean their teeth throughout history. Archaeological evidence shows that people used chew sticks, twigs, bird feathers, and even animal bones.

In Indian medicine, the neem tree was used to create cleaning twigs called daatun. In the Muslim world, the miswak, a root with antiseptic properties, has been used since the Islamic Golden Age. Some people also used baking soda or chalk, though this can increase tooth sensitivity. These diverse methods show that oral care has been a human priority for a very long time.

Research into the oral microbiome has changed how we view dental health. The oral microbiome is the community of microorganisms living in the mouth. Data shows that a commensal microflora, which is a healthy community, can switch to an opportunistic pathogenic flora. This change is driven by the host's environment rather than the bacteria themselves. During the Industrial Revolution, there was a marked shift toward a disease-associated microbiome. One specific bacterium, Streptococcus mutans, is the most important in causing caries. Today, caries is a major endemic disease affecting 60-90% of schoolchildren in industrialized countries.

Professional dental care provides additional layers of protection. Dentists can apply dental sealants to cover the fissures and grooves on the chewing surfaces of back teeth. This prevents food from becoming trapped and halts the decay process. Professionals also perform scaling, polishing, and sometimes debridement to remove tartar.

Dental flossing 9344
Dental flossing 9344

While some suggest check-ups every six months, the Australian Healthcare and Hospital Association suggests adults visit every three years and children every two years. This frequency should be based on individual risk factors. Finally, oral hygiene is connected to the whole body. Regular brushing is associated with a reduced risk of cardiovascular diseases and better blood pressure.

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Toothpasteonbrush.jpg
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File:Keep your teeth clean LCCN92517367 (cropped).jpg
Keep your teeth clean LCCN92517367 (cropped).jpg
File:Six-sided toothbrush.png
Six-sided toothbrush.png
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Dental flossing 9344.JPG
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