When it comes to good oral hygiene, people usually think about brushing their teeth, flossing, and maybe using a mouthwash. However, the tongue is often forgotten—even though it plays a crucial role in oral health. Millions of bacteria colonize it, which can contribute to bad breath, inflammation, and even dental problems. A tongue scraper can offer a simple yet effective solution. In this comprehensive blog post, you'll learn whether a tongue scraper is actually useful, how to use it correctly, and what you should pay attention to.
The tongue – an often overlooked microcosm
The human tongue is a fascinating organ. It aids in speaking, chewing, swallowing, and tasting. At the same time, it is covered with countless papillae, where food debris, dead cells, and, above all, bacteria settle. A so-called tongue coating (also called "tongue biofilm") forms, particularly on the back third of the tongue, which is responsible for bad breath in many people.
In fact, studies show that about 60–80% of bad breath doesn't originate from the stomach or teeth, but rather directly from the tongue. This is where the tongue scraper comes in.
What is a tongue scraper?
A tongue scraper – also called a tongue cleaner – is a simple tool for cleaning the surface of the tongue. It is usually made of plastic, stainless steel, or copper and has a curved shape that allows you to gently scrape the tongue. There are also versions with brushes or ridged surfaces, but the classic shape is a U-shaped scraper, which is particularly effective and gentle.
The tongue scraper has been known in many cultures for centuries. In the traditional Indian healing art of Ayurveda, daily tongue cleaning is an integral part of body care.
How does a tongue scraper work?
The effect of a tongue scraper is based on the mechanical removal of plaque and bacteria. Regularly scraping the tongue coating can achieve the following effects:
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Reduction of bad breath : The removal of odor-causing bacteria reduces the concentration of volatile sulfur compounds in the breath.
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Better taste perception : Studies show that regular tongue cleaning can improve taste sensitivity.
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Support of the oral flora : The targeted removal of pathogenic germs helps to stabilize the balance in the oral microbiome.
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Prevention of inflammation : Fewer bacteria also mean a lower risk of gingivitis and periodontitis.
A clean back of the tongue can therefore make a noticeable contribution to general oral health.
Scientific findings on tongue cleaning
Several studies have examined the effectiveness of tongue scrapers. One controlled study found that tongue scrapers were more effective at removing plaque than brushing alone. They also demonstrably reduced the concentration of volatile sulfur compounds—the gases responsible for bad breath.
A study from the University of Bern showed that combining tongue cleaning with conventional oral care leads to significantly improved oral health. The American Dental Association (ADA) also recognizes tongue cleaning as a useful addition to daily dental care.
Differences between tongue scraper and toothbrush
Many people believe they can clean their tongue with a toothbrush. While this also removes some plaque, its bristles are usually too soft and imprecise for the deeper areas of the papillae. A tongue scraper, on the other hand, is specifically designed to efficiently remove plaque over a large area—without damaging the sensitive mucous membrane of the tongue.
Additionally, toothbrushes often leave residue on the tongue due to their shape, whereas a tongue scraper works evenly and thoroughly. For optimal results, the two should be combined: a toothbrush for teeth and a scraper for the tongue.
Typical bacteria on the tongue
The back of the tongue is a true hotbed of microorganisms. While harmless or even beneficial bacteria (e.g., Streptococcus salivarius) dominate in a healthy oral flora, the following problematic species predominate in cases of poor hygiene and dysbiosis:
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Fusobacterium nucleatum : Promotes inflammation and bad breath.
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Solobacterium moorei : Particularly common in chronic bad breath.
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Prevotella spp. : Involved in gingivitis.
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Porphyromonas gingivalis : One of the main causes of periodontitis.
These germs produce proteases that break down proteins—a process that creates volatile sulfur compounds. These not only smell unpleasant but also promote tissue degradation and inflammatory reactions.
How do you use a tongue scraper correctly?
The application is simple, but requires some practice. Here's how to clean your tongue step by step:
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Preparation : Rinse the tongue scraper under hot water.
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Stick out your tongue : Open your mouth wide and stick out your tongue.
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Cleaning : Place the scraper as far back as possible and gently pull it forward over the surface of the tongue.
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Repeat : Repeat this process 2-3 times until no more deposits are visible.
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Aftercare : Rinse the scraper thoroughly and disinfect if necessary.
Ideally, cleansing should be done in the morning on an empty stomach, as most plaque accumulates overnight. It's important not to press too hard—cleaning should be thorough but gentle.
Which material is best?
Tongue scrapers are available in different materials – each with its own advantages and disadvantages:
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Plastic : Cheap, lightweight, good for beginners. Should be replaced regularly.
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Stainless steel : Durable, hygienic, easy to clean.
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Copper : Antibacterial properties, traditionally used in Ayurveda.
For long-term use, models made of stainless steel or copper are particularly recommended as they are stable and easy to clean.
Tongue scrapers and probiotics – a useful combination?
Mechanical cleaning removes bacteria—but doesn't replace them with beneficial germs. This is where probiotics come in. Certain probiotic bacteria, such as Streptococcus salivarius K12 or M18, can colonize the tongue specifically and help stabilize the microbial balance. After cleaning with a tongue scraper, the tongue is particularly receptive to such preparations, such as lozenges.
The combination of scraper and probiotic not only removes the biofilm but also builds up healthy microflora in the long term – a double protection against bad breath and diseases.
Are there any risks associated with its use?
When used properly, the tongue scraper is safe and well-tolerated. However, pressing too hard or pushing too far into the throat can trigger a gagging reflex or cause minor injuries. People with open wounds, infections, or very sensitive tongues should consult their dentist.
Children should also only start tongue cleaning when they can do so safely and in a controlled manner.
Conclusion: Tongue scraper – a small tool with a big impact
A tongue scraper isn't a luxury, but a useful addition to your daily oral care routine. It specifically removes harmful bacteria, reduces bad breath, supports the oral microbiome, and promotes overall oral health. Combined with a toothbrush, floss, and, if necessary, probiotic products, it forms a strong foundation for healthy, fresh breath and a radiant smile.
Anyone who invests just 30 seconds a day will benefit from noticeably improved oral hygiene – with little effort but a big impact. The answer to the question "Does a tongue scraper make sense?" is therefore a clear: Yes. This applies to almost anyone who values health, freshness, and prevention.
