Tooth Decay
Tooth decay is one of the most common dental problems, affecting people of all ages. In fact, it is one of the main causes of tooth loss.
The earlier it is discovered and treated, the greater the chances of keeping your teeth healthy for a lifetime.
What is dental caries?
Although many consider it to be just a simple “hole in the tooth”, caries is actually an infectious disease of the hard tissues of the tooth.
It occurs due to acids produced by bacteria in dental plaque, which gradually attack the enamel and then the dentin, leading to cavities and tooth sensitivity.
If not treated in time, tooth decay can reach the tooth’s nerve (dental pulp), causing severe pain, infection, and ultimately tooth loss.

How does tooth decay form?
It all starts with the accumulation of plaque on the surface of the teeth, especially in hard-to-reach areas such as the gum line or the spaces between the teeth.
Poor oral hygiene, foods high in sugars and acids, and lack of regular check-ups contribute to the growth of bacteria that produce acids responsible for destroying tooth enamel.

Signs and symptoms of tooth decay
Here are some signs that may indicate the presence of tooth decay:
- Pain or sensitivity to cold, hot, or sweet foods/drinks
- White, brown, or black spots on the teeth
- Visible destruction of the tooth
- Bad breath
- Constant pain – especially if the infection has reached the nerve
How can you prevent cavities?
Prevention is the key to a healthy smile in the long term. Here are some useful habits:
- Brush at least twice a day with fluoride toothpaste
- Use dental floss daily
- Limit sugary or acidic foods and drinks
- Regular dental checkups and professional cleanings
- Applying fluoride or sealing teeth, especially in children, for extra protection
How do we treat cavities?
Treatment varies depending on the stage at which it is discovered.
In the early stages, cavities are treated with a filling that restores the shape and function of the tooth.
In advanced stages, root canal treatment may be necessary if the dental pulp is affected.
If the damage is severe, the tooth may be compromised and will need to be replaced.
In conclusion, tooth decay is one of the most common but also one of the easiest dental conditions to prevent. Proper hygiene, a balanced diet, and regular visits to the dentist can make all the difference.
At Liren, caries treatment is performed with precision
Our doctors treat cavities with magnification (magnifying glasses or microscopes) and using a dental dam – a special foil that isolates the tooth, ensuring excellent visibility and a perfectly dry environment for quality treatment.
This modern protocol allows us to work with precision, efficiency, and comfort for the patient.
