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Why Some People in Vietnam Traditionally Have Black Teeth

In parts of Vietnam, a striking tradition has endured for centuries: the practice of turning teeth a glossy black. While it might seem unusual to modern eyes, this custom is deeply rooted in cultural identity and beauty ideals that stretch back to the Iron Age.

According to a recent study published in Archaeological and Anthropological Sciences, ancient Vietnamese people used a paste rich in iron to dye their teeth. This wasn't merely aesthetic—blackened teeth were seen as a mark of maturity, elegance, and even romantic appeal. The dark, lustrous finish was considered more refined than natural tooth color.

Researchers explain that the process involved applying a mixture containing iron compounds, which reacted with tannins in substances like tea or betel nut, creating a durable black coating. This method not only altered appearance but also may have offered some protection against tooth decay, a practical benefit alongside its cultural significance.

Though largely faded in urban areas, the tradition survives among older generations and in remote communities, particularly in the northern highlands. Even today, some elders take pride in their blackened teeth as a symbol of heritage and lifelong tradition.

Unlike artificial dental trends seen elsewhere, this practice evolved naturally within the culture—passed down through rituals and family customs. It reflects a broader Southeast Asian tradition of tooth modification, seen in varying forms across countries like Laos and parts of Thailand.

As Vietnam continues to modernize, traditions like teeth blackening serve as quiet reminders of a complex past. While fewer young people embrace the practice today, it remains a powerful emblem of identity—one that connects generations through shared values and ancestral pride.

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Cleaning Teeth Without a Toothbrush: A Global Tradition

While most of us reach for a plastic toothbrush and tube of toothpaste each morning, millions around the world keep their teeth clean in a far more traditional way—using nothing but a simple twig. This age-old practice is especially common in parts of Africa and the Muslim world, where the miswak—a natural chewing stick made from the Salvadora persica tree—has been used for centuries.

The miswak isn’t just a cultural curiosity; it’s a functional oral hygiene tool. Chew one end of the stick, and it frays into soft bristles perfect for scrubbing teeth. The bark naturally contains fluoride, antiseptic compounds, and mild abrasives, making it surprisingly effective at fighting plaque and gum disease. In fact, studies suggest its cleaning power can rival that of a conventional toothbrush when used properly.

In many households across Sudan, Nigeria, Saudi Arabia, and Yemen, the miswak is more than hygiene—it’s a ritual. Its use is deeply rooted in cultural and religious traditions, with some Islamic teachings even encouraging it as a sunnah, or practice of the Prophet Muhammad. It’s common to see people carrying slender sticks, casually chewing and cleaning throughout the day.

Meanwhile, in Western countries, the idea of brushing with a twig might seem primitive. Yet, as interest grows in sustainable, natural alternatives to plastic products, the humble miswak is gaining quiet attention. Some eco-conscious brands now offer biodegradable wooden brushes inspired by the same principle.

So, do people in these cultures not brush their teeth? Far from it. They just do it differently—wisely, sustainably, and with a tradition that’s stood the test of time. Sometimes, the oldest ways are still among the best.

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Brushing Before or After Breakfast? It Depends on Where You're From

What time of day do you reach for your toothbrush? If you're in the United States, chances are it's right after breakfast. But if you're in India, you might not even have touched your brush yet. This small but telling difference in oral hygiene habits reveals how cultural routines shape even the most everyday rituals.

“Americans and Indians are taught to do this one thing completely differently,” notes an observer who noticed the contrast firsthand. In the U.S., brushing after breakfast is standard practice—many people see it as a way to start the day fresh, removing the taste of sleep and cleaning up after morning toast, coffee, or cereal. It’s often framed as part of a post-meal routine, similar to washing dishes: clean up after you eat.

Meanwhile, in India, brushing before breakfast is far more common. For many, it's part of a morning purification ritual. The idea is to begin the day with a clean mouth, and eating anything afterward doesn’t call for re-brushing. Some also cite traditional practices and Ayurvedic influence, which emphasize cleansing the body early on. Even commercially, toothpaste marketing in India often shows people brushing before eating, reinforcing the norm.

Interestingly, dentists have weighed in too. Some argue that brushing after meals—especially after acidic foods—can harm enamel if done immediately, while others emphasize consistency over timing. Ultimately, both habits aim for the same goal: oral health.

But the difference goes beyond dental advice—it’s a quiet reminder that even the most personal routines are shaped by culture. So next time you pick up your toothbrush, consider: are you brushing before, after, or because of where you're from?

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