Short answer: Dental erosion (dental acid erosion) is a permanent loss of tooth tissue caused by acids chemically dissolving the tooth enamel, with no role played by bacteria. Acidic drinks, frequent consumption of fruit and vinegar, reflux and repeated vomiting are the main causes. A yellowish color, sensitivity, translucent front teeth and shiny, flat surfaces are the signs. Its progression can be prevented by limiting acidic drinks and brushing correctly.
If the edges of your teeth look more translucent than before, if you feel a twinge when you drink something cold, or if your teeth seem to have yellowed over time, one of the causes may be dental erosion. Unlike tooth decay, dental acid erosion occurs when acids, not bacteria, directly dissolve the enamel. With acidic drinks and reflux problems becoming more common, it is now seen more often, especially in teenagers and young adults. Because lost enamel does not grow back on its own, it is important to notice erosion early and stop it from progressing. In this article we explain what acid erosion is, its causes, its signs, ways to prevent it and the treatment options.
What is acid erosion?
Acid erosion is the loss of minerals and the gradual wearing away of the tooth surface as a result of contact with acids, without any contribution from bacteria. Tooth enamel is the hardest tissue in the body; however, when the pH in the mouth drops below about 5.5, the crystals that make up the enamel begin to dissolve. After brief and infrequent acid exposure, saliva neutralizes the environment and some of the minerals are regained. When acid exposure is frequent and prolonged, however, this repair falls short and the enamel gradually becomes thinner.
Erosion is one of several types of tooth wear. It is often seen together with mechanical wear caused by clenching and grinding (attrition) and wear caused by hard brushing (abrasion). Because enamel softened by acid becomes more vulnerable to mechanical forces, these processes can accelerate one another.
What causes dental erosion: drinks, reflux, vomiting
The causes of dental erosion are divided into two groups depending on whether the acid comes into the mouth from outside or from inside the body.
External acids
- Carbonated drinks: Cola and other carbonated drinks, including sugar-free ones, contain phosphoric and citric acid.
- Fruit juices and smoothies: Those made from citrus fruits such as orange, grapefruit and lemon are particularly acidic.
- Energy and sports drinks: They are both acidic and usually sugary; their effects can be stronger because the mouth becomes dry during exercise.
- Lemon water and vinegar: Sipping lemon water or apple cider vinegar, often considered healthy, throughout the day keeps the enamel in constant contact with acid.
- Acidic foods: Sour candies, pickles and frequently eaten citrus fruits.
- Certain medications and supplements: Chewable vitamin C tablets and acidic effervescent tablets.
- Occupational and environmental factors: Prolonged exposure to chlorinated pool water or working in environments with acid fumes.
Internal acids
- Gastroesophageal reflux: Stomach acid reaching the esophagus and the mouth causes erosion on the inner and chewing surfaces of the molars, especially at night. Sometimes "silent reflux" that is not felt in the mouth can also be the cause.
- Repeated vomiting: Conditions such as severe nausea and vomiting in pregnancy, alcohol use and eating disorders can cause marked wear on the inner surfaces of the upper front teeth.
Dry mouth also increases the risk, because saliva is the most important natural defense that neutralizes acids and repairs the enamel.
What are the signs of acid erosion?
Acid erosion may not cause symptoms at first and is often noticed during a dental examination. As it progresses, the following signs may appear:
- Tooth sensitivity: As the enamel thins, the underlying dentin layer is exposed and you feel a twinge with hot, cold, sweet or sour foods.
- Discoloration: Teeth may look yellowed because the yellowish dentin shows through the thinning enamel more.
- Translucency: The biting edges of the front teeth take on a semi-transparent appearance.
- Shiny, flat surfaces: The natural lines and texture of the enamel surface disappear, and the tooth surface looks smooth and glassy.
- Cupping: Small hollows can form on the chewing surfaces of the molars; old fillings may appear to stand higher than the surrounding tooth.
- Cracks and chipping at the edges: Thinned biting edges can chip more easily.
- Shortening of the teeth: In advanced cases, the teeth become noticeably shorter and the bite may change.
How is acid erosion distinguished from tooth decay?
Although acid erosion and tooth decay may look similar in terms of tooth tissue loss, the way they develop and where they occur are different. Decay starts with the acid that plaque bacteria produce from sugars and usually develops as a localized lesion between the teeth, in the grooves of the molars or along the gum line. Erosion, on the other hand, affects broad surfaces that come into contact with acid, such as the inner surfaces of the front teeth or the entire chewing surface of the molars. With decay, the tissue is soft and discolored, whereas with erosion the surface remains hard and shiny. Making this distinction is important for choosing the right prevention strategy, and it is easily assessed during a dental examination.
How can dental erosion be prevented?
The basic way to prevent dental erosion is to reduce how often and how long the teeth are in contact with acid, and to protect the enamel after an acid attack. Practical recommendations include:
- Limit acidic drinks: Stop making carbonated drinks, fruit juices and energy drinks a daily habit; choose water or milk when you are thirsty.
- Drink in one go instead of sipping: Sipping an acidic drink for hours is more harmful than drinking the same amount in a short time.
- Use a straw: A straw can reduce the drink's contact with the front teeth.
- Have acidic drinks with meals: The increased saliva flow during meals reduces the effect of the acid.
- Do not brush right away: Brushing immediately after eating something acidic or vomiting can wear away the softened enamel. Rinse your mouth with water first and wait about 30–60 minutes before brushing.
- Soft brush and fluoride toothpaste: Avoid hard toothbrushes and highly abrasive whitening toothpastes.
- Cheese or milk: Eating a piece of cheese after an acidic food can help raise the pH in the mouth.
- Sugar-free gum: It increases saliva flow and speeds up neutralization.
- Treating reflux and vomiting: Consulting the relevant physician about the underlying medical condition is decisive in stopping erosion.
What are the treatment options for dental erosion?
Treatment is planned according to the severity of the erosion and always begins with bringing the cause under control; otherwise, any restorations placed may also be affected over time.
- Early stage: If enamel loss is limited, the enamel is strengthened and sensitivity is reduced with high-fluoride toothpastes, fluoride varnishes applied by the dentist and products that support remineralization.
- Sensitivity treatment: Exposed dentin surfaces can be sealed with desensitizing agents or thin protective coatings.
- Composite restorations: Lost tooth tissue is replaced with tooth-colored filling material, restoring both shape and protection.
- Veneers and crowns: More advanced tissue loss may require porcelain veneers or crowns.
- Night guard: If erosion is accompanied by teeth clenching, guards that protect the teeth throughout the night may be recommended.
For common questions about acid erosion and tooth sensitivity, you can also visit our frequently asked questions page.
When should you get checked for dental erosion in Ankara?
If you notice increasing sensitivity, discoloration, translucent edges or shortening of your teeth, it is advisable to see a dentist without waiting for the wear to progress. An assessment at an early stage often allows the problem to be stopped with simpler measures. At our clinic in Oran, Çankaya, the type and degree of wear are assessed, possible causes are reviewed together with you and, if necessary, protective or restorative treatment is planned.
Frequently asked questions
Can dental erosion be reversed?
Lost enamel does not regenerate on its own, so erosion is a permanent loss of tissue. However, surfaces softened at an early stage can be strengthened with fluoride applications and the progression can be stopped. If necessary, lost tissue is replaced with restorations.
Does sugar-free cola harm the teeth?
Although sugar-free colas reduce the risk of decay, they contain acid just like the sugary ones and can therefore cause erosion. What matters for the teeth is the acidity and how often they are exposed. For this reason, it is recommended to limit sugar-free carbonated drinks as well.
Is drinking lemon water harmful to the teeth?
Because lemon water is acidic, it can wear away the enamel when sipped throughout the day. If you like it, drinking it in a short time, using a straw and rinsing your mouth with plain water afterwards reduce the risk. Avoid brushing right after drinking it.
How does reflux affect the teeth?
With reflux, stomach acid reaches the mouth and can cause erosion, especially on the inner and chewing surfaces of the molars. In some people, reflux can affect the teeth without causing any symptoms. When the dentist notices signs of erosion, they may recommend seeing the relevant physician.
