Interdental cavities: why are they so dreaded? 🦷

Interdental caries is a sneaky form of decay: it discreetly sets in between each tooth, in a place that is difficult to spot... and even more difficult to reach !

This type of tooth decay is feared by patients and dentists alike. Why? Because it's often detected too late, when it's already well advanced. Let's explore together how to detect it, treat it, and, most importantly, prevent it.

* This article does not replace the advice of a healthcare professional.

At first, interdental decay doesn't cause pain. That's precisely what makes it so insidious. But don't worry, there are some warning signs:

• Tooth sensitivity to cold or sweet foods ,

• An unpleasant taste that lingers in the mouth,

• Discomfort when flossing ,

• Or also localized bleeding of the gums .

The dental space is difficult to see with the naked eye. Even with careful examination in the mirror, it can be difficult to spot a cavity without professional help. As a result, they progress silently, without us noticing.

Dentists are fortunate to have bitewing X-rays , intraoral cameras , and sometimes even artificial intelligence to spot invisible cavities. These technologies can detect problems long before dental pain occurs.

Working between each tooth, in a narrow and deep dental space, requires great precision. This can lengthen treatment and be uncomfortable for the patient.

Interdental caries, which develop discreetly, are often discovered at an advanced stage, requiring more intensive dental treatment .

The dentist sometimes uses specific tools such as:

• Dies to shape the cavity,

• A dental dam to isolate the area,

• Or even an operating microscope for high precision on the tooth.

If hygiene isn't impeccable after treatment, these areas can quickly become breeding grounds for bacteria... and tooth decay can resurface. Hence the importance of prevention. 😉

A simple composite or resin filling may be sufficient if the cavity is small and localized on your tooth. Your dentist will make sure to preserve as much tooth material as possible.

When the caries is advanced, it is possible to use:

• An inlay : a piece made of ceramic or resin,

• An onlay : larger in size,

Or a crown if the tooth is very damaged.

And yes, unfortunately, sometimes the tooth is too damaged to be saved. In this case, it must be removed and replaced (with an implant or a bridge, for example). And that's what we want to avoid at all costs!

After cleaning out the tooth decay, the dentist fills the cavity with a durable material, often an aesthetic composite.

Back teeth are particularly complex to treat. Your dentist will adjust their equipment and methods to the shape of your mouth.

Today, lasers, binocular loupe, and digital guides allow for more precise and less invasive interventions.

As the French National Authority for Health points out in a report , simple brushing is not enough to prevent cavities! Flossing or interdental brushes are essential for removing plaque between each tooth, where the brush cannot reach.

Brushing twice a day at least with a soft, ideally electric toothbrush is the basics. Also, opt for suitable dental products, such as fluoride toothpaste or a gentle mouthwash, which will make a difference to your overall health.

Frequent sugar intake feeds the bacteria that cause tooth decay. Remember to space out meals and rinse your mouth well afterward.

A check-up every 6 to 12 months allows you to detect the beginnings of cavities... and treat them before it's too late! We repeat it very often, but it's really important to visit your dentist often, he remains the one and only ally for the health of your teeth.

Applied in the office, varnishes help strengthen enamel , making it more resistant to acid attacks and bacteria that cause tooth decay. Sealants, on the other hand, form a physical barrier by covering the grooves and fissures of a tooth, thus preventing the accumulation of food debris and bacteria .

Advanced software examines X-rays to detect the first signs of decay with pinpoint accuracy. It uses algorithms and AI techniques to analyze every detail of the images, identifying potential dental abnormalities long before they are visible to the naked eye.

Still under study, oral probiotics could become valuable allies against interdental cavities. The idea? Introduce "good" bacteria into the mouth to rebalance the oral flora and slow the proliferation of bad bacteria. Several products (lozenges, tablets, etc.) are already on the market, but their long-term effectiveness is still being researched.

Xylitol is a natural sweetener that has the ability to reduce oral acidity and prevent certain bacteria from growing. The result: a less cavity-friendly environment! Today, therapeutic chewing gums, enriched with xylitol, are available that help stimulate salivation, strengthen enamel, and prevent acid attacks between meals . A small habit that can make a difference in your daily life!

Interdental decay may seem like a challenge, but with good hygiene , the right tools, and regular monitoring, it can easily be avoided. And if caught early, it can be treated very well. And keep in mind that decay can appear as soon as the first teeth appear (around 6 months). So take just as good care of your child's teeth! 😉