No, established cavities (holes in teeth) cannot go away naturally and require a dentist to fill them, but the earliest stage of tooth decay (demineralization, white spots) can sometimes be reversed or stopped through remineralization with fluoride, good diet, and hygiene. Once decay breaks through the enamel, natural methods can only halt further damage; they cannot rebuild lost tooth structure, so professional treatment is essential to prevent serious issues like root canals.
Enamel can repair itself by using minerals from saliva, and fluoride from toothpaste or other sources. But if the tooth decay process continues, more minerals are lost. Over time, the enamel is weakened and destroyed, forming a cavity. A cavity is permanent damage that a dentist has to repair with a filling.
But now there is a new cavity treatment called silver diamine fluoride (SDF). SDF is an FDA-approved liquid used to treat cavities without an injection or drilling. This new treatment can be great for young children, special needs/medically compromised patients, or anyone fearful of dental treatment.
For children, some early tooth decay may be managed with conservative methods such as removal of plaque, cleansing the dental decay, remineralizing the teeth, use of supplemental fluoride, and dental sealants. In most cases, treatment will require removing the decayed part of the tooth and replacing it with a filling.
Recognizing the Signs of a Stage 1 Early Cavity
You might notice slight discoloration on the tooth's surface, typically appearing as white, chalky spots. These spots result from the enamel losing minerals, a process known as demineralization.
It's quite well known that eating dietary sugars in excess along with poor oral hygiene leads to dental decay such as cavities. This is due to the fact that the bacteria in your mouth feed on these sugars and excrete acids as a byproduct of that process, thus causing decay.
However, not all holes in teeth are cavities. Following are some other reasons why you might notice those holes: Enamel Erosion: Acidic foods and drinks can wear down the tooth's enamel, creating small holes.
The 2-2-2 rule in dentistry is a simple guideline for good oral hygiene: brush twice a day, for two minutes each time, and visit your dentist twice a year, helping to prevent cavities, gum disease, and other dental problems by establishing consistent habits for plaque removal and professional monitoring.
Among children aged 6 to 8 years, over half (52%) have had a cavity in their primary (baby) teeth. Among adolescents aged 12 to 19, more than half (57%) have had a cavity in their permanent teeth. Among adults aged 20 and older, about 90% have had at least one cavity.
The "7+4 Rule" in pediatric dentistry is a guideline for baby tooth eruption: a child typically gets their first tooth around 7 months old, and then gains about 4 new teeth every 4 months thereafter, reaching all 20 primary teeth by around 27 months (just over 2 years), helping parents track normal development and know when to see a dentist. Another "Rule of 7" emphasizes a child should see an orthodontist by age 7 for an early evaluation of permanent teeth and jaw development.
The "3-3-3 dental rule" usually refers to two different things: a hygiene habit (brush 3x a day, 3 mins each, change brush every 3 months) or a temporary pain relief method for toothaches (3 ibuprofen tablets, 3 times a day, for 3 days). The hygiene rule promotes better cleaning, while the pain rule manages inflammation until a dentist can be seen, but the medication rule requires caution and should be discussed with a doctor.
Fluoride treatments.
If your cavity just started, a fluoride treatment may help restore your tooth's enamel and can sometimes reverse a cavity in the very early stages. Professional fluoride treatments contain more fluoride than the amount found in tap water, toothpaste and mouth rinses.
Lack of vitamin D can lead to dental caries, and weak or brittle teeth that easily break, chip, and crack. A controlled study made up of 2,827 children found a reduction of 47% in cavities of the children who received vitamin D supplements.
5 Ways to Help Reverse Early Cavities
Fluoride is a natural mineral that helps rebuild weakened enamel and can reverse early signs of decay. Use a fluoride toothpaste and ask your dentist about professional fluoride treatments during your next cleaning.
The act of chewing gum increases salivary flow and volume by mechanical action and stimulation of oral taste receptors. Chewing sugar-free gum may, when added to a regular home oral care routine of twice daily brushing with fluoridated toothpaste and daily cleaning between teeth, contribute to reducing caries risk.
Therefore your favorite cavity-busting supplements should be calcium, vitamin D 3, vitamin A, vitamin K 2, magnesium, and oral probiotics. You must take the first four in tandem, ensuring your body balances to utilize the nutrients correctly.
Sugary Foods
Ice cream, cookies, or candy foods are particularly dangerous because they stick to teeth for a long time without breaking down into chunks that can be washed away with saliva. They can cause the most damage to teeth by eroding enamel and causing cavities to form.
So, the average 21 year old American starts their adult life with 28 teeth but by the time they reach 44 years old, 69% have lost at least one tooth, by the age of 50 they have lost 12 teeth (including wisdom teeth) and by age 74, 26% have lost all of their teeth.
Because there are no nerves in the enamel, you probably won't be able to feel the cavity forming in the early stages of tooth decay. Once the decay progresses to reach the softer tissues inside the tooth where the dentin and nerves live, you might notice these signs of a cavity: Tooth pain or sensitivity.
If you have dry mouth—whether from genetics, medications, or stress—you're at higher risk for cavities. So when someone says, “I never brush my teeth and have no cavities,” they might simply have protective, high-quality saliva that naturally balances their oral ecosystem.
Code 2 – Slight bleeding when probed, Calculus or Plaque present and gingival pockets under 3.5mm.
Although this is not always a bad thing, when you start brushing too much or for too long, you can ultimately damage your teeth. Brushing more than three times a day, and for longer than 2 minutes, can sometimes lead to your tooth enamel wearing down as well as cause damage to your gums.
A handful of fillings at 30 is normal. But if you've had 8–10 or more cavity fillings by age 30, it could be a sign of high cavity risk. That doesn't mean your teeth are unhealthy—it just means tooth decay prevention should be a bigger focus going forward.
Cavity-Fighting Foods: What to Include in Your Diet
The most important thing you can do to avoid needing a filling is to keep good habits for oral hygiene. By brushing your teeth, using interdental cleaners, eating well, and visiting your dentist regularly, it is possible to avoid needing a filling, even when your teeth were previously heading that way.