Who doesn’t remember the story of “Karius and Bactus” from their childhood? To this day, the story teaches children about these two bad bacteria, what it means to have a hole in your tooth and why it is so important to regularly brush your teeth. However, by the time we become adults, or much sooner, many of us will have forgotten the details of the story, Despite the doctors’ and scientists’ continual warnings that caries is the most common disease to affect the teeth and poses a serious threat to oral health. If it remains untreated, it may even have grave consequences for the whole body.

In the following, we explain why this is the case and how you can avoid caries.

What exactly is caries?

In short, caries, which actually means tooth decay, destroys the tooth’s substance (technically speaking, the tooth structure). It is a damaging process of demineralisation that affects the teeth. You can picture caries developing like this: just as rocks that are constantly surrounded by salty seawater become gradually hollowed out and thereby increasingly porous and full of holes, caries washes out the tooth’s minerals, i.e. the hard tooth substance. Initially, the tooth’s surface becomes damaged; the tooth becoming discoloured is a sign of the damage; then a hole develops. The tooth becomes painful when its soft parts, including the nerve, eventually also become affected.

Background information:

Scientific evidence indicates that more than 700 different types of bacteria live in our mouth, and we do not even notice them. Similar to our intestinal flora, where good bacteria perform important roles, many such microorganisms also exist in our mouth. They are in fact useful and important for a healthy oral flora.

However, other bacteria live on food residues and beverages, especially the sugary residues from food. If these are not removed by regular tooth brushing, they will form deposits on the teeth’s surfaces and in the interdental spaces in particular. The food residues are metabolised by bacteria which, in doing so, release acids that are dangerous to the tooth substance, and caries results. The latter will get progressively worse if left untreated.

In its so-called initial stages, caries is often quite inconspicuous, appearing in the form of chalky white spots found on the tooth that are lighter in colour than the rest of the tooth. In the early stages of the process, the dental surface is generally still intact. However, in these areas, the enamel’s demineralisation has already begun, which then makes them porous. Dark spots also appear – another sign of caries. While older children, adolescents and adults usually struggle with their chewing surfaces and the interdental spaces, older people (60+ years of age) tend to have more problems with caries affecting the tooth necks because as we get older the tooth necks often become exposed as our gums recede.

This type of caries which affects the sensitive tooth necks, where the natural protective layer is significantly thinner, is also called root caries.

How to prevent caries with proper nutrition and care?

The good news: at an early stage, caries can still be stopped without having to drill and fill the cavities, namely with the active agent fluoride. Fluoride toothpastes, e.g. LACALUT, ensure that the minerals contained in our saliva can counteract the tooth enamel’s destruction. Fluoride toothpastes strengthen and thereby stabilise the enamel. Strong tooth enamel is less susceptible to bacteria. If you are on the move and cannot brush your teeth after a meal, xylitol-containing chewing gum can be helpful. It will stimulate saliva production and help to neutralise the acids in the mouth. In general, having plenty to drink and a good saliva flow are important ways to prevent caries since several of the components found in saliva have antibacterial properties. The minerals contained in the saliva can counteract the loss of hard tooth substance.

Something that is often underestimated: untreated caries is extremely dangerous since the inflammation may spread to the jawbone. Moreover, the bacteria can also enter our organism via the bloodstream and then cause inflammation of the organs.

Cleaning your teeth

It is the only way to reduce harmful bacteria. The aim is to prevent the constantly forming film made up of saliva and bacteria, which is also called plaque or biofilm, from becoming thicker and thicker, as it is a particularly good place for caries provoking bacteria to multiply. Long-chain sugar compounds, e.g. carbohydrates found in wholegrain products, do not cause caries. Nevertheless, food residues should always be removed thoroughly – for long-lasting healthy teeth.