Short answer: The first thing to check when choosing a toothpaste is its fluoride content; for adults, toothpastes containing 1000–1500 ppm fluoride are generally recommended. If you have sensitive teeth, products containing potassium nitrate or stannous fluoride are a good choice, and for children a fluoride toothpaste in an age-appropriate amount is preferred. Whitening toothpastes only reduce surface stains. Proper brushing and cleaning between the teeth are just as important as the toothpaste itself.
Have you ever stood in front of the store shelf, wondering which of dozens of tubes to buy? "Whitening," "for sensitive teeth," "herbal," "charcoal," "gum protection"... The packaging may all look equally bold, but choosing a toothpaste actually becomes easier once you answer a few basic questions. In this article, we explain what to look for when buying toothpaste, why fluoride content matters, what to make of sensitivity and whitening claims, the right toothpaste for children, and other oral care products.
What should you look for when choosing a toothpaste?
The first thing to look for when choosing a toothpaste is its fluoride content, and the second is your personal needs; taste, color and packaging come second. There is no single answer to the question of which toothpaste is right for everyone. The right product differs for someone with a high risk of cavities, someone with sensitive teeth and a young child.
When reading the packaging, you can pay attention to the following points:
- Fluoride amount: This is usually listed in the ingredients in "ppm F." It appears under names such as sodium fluoride, stannous fluoride or sodium monofluorophosphate.
- Targeted need: Whether it contains an active ingredient aimed at a specific problem such as sensitivity, gums, tartar or stains.
- Abrasiveness: Whitening and charcoal products in particular may have a high proportion of abrasive particles. People with wear at the necks of their teeth or with gum recession are advised to choose gentler formulas.
- Age group: The amount of fluoride and the instructions for use in children's toothpastes vary by age.
- Personal sensitivities: In some people, certain flavorings or foaming agents can irritate the inside of the mouth; in that case, switching to a product with different ingredients can help.
One more point to keep in mind: a toothpaste only works when combined with the right brushing technique and enough brushing time. Brushing twice a day for about two minutes, covering all surfaces of the teeth, is at least as important as which toothpaste you choose.
Fluoride content
Fluoride toothpaste is one of the oral care products whose effectiveness in preventing cavities is strongly supported by scientific studies, and for adults toothpastes containing 1000–1500 ppm fluoride are generally recommended. Fluoride makes enamel more resistant to acids, helps early-stage cavities remineralize and reduces acid production by bacteria.
Practical information about using fluoride:
- Spit after brushing, but do not rinse your mouth with lots of water. This way the fluoride stays on the tooth surface longer.
- High-fluoride toothpastes may be recommended by a dentist for people with a very high risk of cavities, those with dry mouth, or older adults at risk of root cavities. These products should be used on a dentist's recommendation.
- Fluoride-free toothpastes do not provide the protection against cavities that fluoride toothpastes offer. If you are considering a fluoride-free product, it is advisable to discuss it with your dentist.
Concerns about fluoride are usually related to swallowing large amounts of it. According to the shared view of national and international dental organizations, fluoride toothpaste used in the recommended amount and in the right way is safe.
Toothpastes for sensitive teeth
If your teeth feel a brief twinge when they come into contact with something cold, hot or sweet, desensitizing toothpastes can reduce your discomfort over time. Tooth sensitivity is mostly caused by the underlying dentin layer becoming exposed as a result of gum recession or enamel wear.
The active ingredients in these toothpastes work in two ways:
- Those that calm the nerve: Ingredients such as potassium nitrate reduce the response of the nerve endings inside the tooth to stimuli.
- Those that block the tubules: Ingredients such as stannous fluoride, arginine or strontium compounds aim to seal the microscopic tubules in the dentin and keep stimuli from reaching the nerve.
The effect of desensitizing toothpastes usually becomes noticeable after a few weeks of regular use. Some people also find it helpful to rub a small amount of toothpaste onto the sensitive area with a finger before bed and leave it there. However, if there is pronounced, long-lasting or spontaneous pain in a single tooth, this may be a sign of a cavity, a crack or nerve inflammation. In that case, rather than switching toothpastes, you should see a dentist.
Do whitening toothpastes work?
Whitening toothpastes can help reduce tea, coffee and tobacco stains on the surface of the teeth, but they do not noticeably change the tooth's own natural color. These products mostly contain abrasive particles or stain-dissolving agents. Some contain a small amount of peroxide, but because its contact time with the tooth surface is short, its effect is limited.
Things to keep in mind when using whitening toothpaste:
- Using highly abrasive products for a long time together with hard brushing can lead to wear of the enamel and the necks of the teeth.
- Scientific evidence for the whitening effect of activated charcoal toothpastes is limited; because of their abrasiveness and the fact that most of them contain no fluoride, a cautious approach is advised.
- The color of restorations such as fillings, crowns and veneers does not change with toothpaste.
- Toothpaste is not effective for discoloration originating from the inner structure of the tooth; in that case, whitening under a dentist's supervision or other methods are considered.
Children's toothpastes
Fluoride toothpaste is recommended for children as well; what matters is using an age-appropriate amount and brushing under parental supervision. The generally accepted recommendations are as follows:
- From the first tooth to age 3: A rice-grain-sized amount of fluoride toothpaste, just enough to spread a thin layer on the brush.
- Ages 3–6: A pea-sized amount of fluoride toothpaste.
- After age 6: Depending on the child's risk of cavities, you can switch to an adult toothpaste; the amount can still be kept to the size of a pea.
Since young children tend to swallow toothpaste, it is important for a parent to measure the amount. Very sweet, candy-flavored toothpastes may encourage children to eat the toothpaste. Until the child learns to spit, it is recommended that a parent do the brushing or supervise it closely. If your child has a high risk of cavities, the dentist may recommend a different fluoride plan.
Other oral care products
Toothpaste alone is not enough; the right toothbrush and cleaning between the teeth are essential parts of oral care. The main products are:
- Toothbrush: Brushes with soft or medium bristles suit most people. A brush whose bristles have started to splay should generally be replaced every three months. Electric toothbrushes can make plaque removal easier, especially for people with limited manual dexterity.
- Dental floss and interdental brushes: These clean the spaces between the teeth that a toothbrush cannot reach. For people with wider gaps between their teeth, interdental brushes may be more practical.
- Water flosser: This can help people with bridges, implants or fixed orthodontic appliances; however, it does not fully replace dental floss.
- Mouthwashes: Fluoride mouthwashes can provide extra protection for people with a high risk of cavities. Mouthwashes containing chlorhexidine are used in specific situations, on a dentist's recommendation and for a short time; long-term use can stain the teeth.
- Tongue cleaner: By reducing the buildup on the surface of the tongue, it can help ease bad breath.
If you use clear aligners or a night guard, brushing them with toothpaste can scratch their surfaces; for cleaning them, it is advisable to use the methods your dentist recommends. For other questions about oral care, you can take a look at our frequently asked questions page.
Let's find the right products for you together
If you have a complaint such as sensitivity, frequent cavities, bleeding gums or dry mouth, choosing your toothpaste and oral care products according to the condition of your mouth can make a difference. At our polyclinic in Park Oran Ofis in Çankaya, your teeth and gums are assessed during routine check-ups, and personalized recommendations for a suitable toothbrush, toothpaste and interdental care are explained to you.
Frequently asked questions
How much toothpaste should you use?
For adults, a pea-sized amount of toothpaste that covers part of the bristles is generally enough. Using more toothpaste does not improve cleaning; it only increases the amount of foam. For children, the amount is reduced further according to age.
Should I rinse my mouth after brushing?
After brushing with fluoride toothpaste, it is recommended that you spit out the toothpaste but do not rinse your mouth with lots of water. This way the fluoride stays on the tooth surface longer and keeps up its protective effect. If you are used to rinsing, you can do it with very little water.
Are herbal and fluoride-free toothpastes enough?
Although fluoride-free toothpastes help remove plaque, they do not provide the protection against cavities that fluoride toothpastes offer. For preventing cavities, choosing a fluoride product is the generally accepted approach. If you would like to use a fluoride-free product, it is advisable to discuss your level of risk with your dentist.
How often should I change my toothpaste?
There is no need to switch toothpaste brands or types regularly. What matters is that the product you use contains fluoride and suits your needs. When a new complaint such as sensitivity or a gum problem appears, you can review your choice of product with your dentist.
