What Does Gum Recession Look Like?

Gum recession is when the pink tissue around your teeth wears away and pulls back, exposing more of the tooth root. You might notice your teeth looking longer than they used to, or a small notch forming near the gumline. The exposed root can look yellow or darker than the rest of your tooth, and you may feel a sharp sensation when cold air or hot drinks hit that area.

What Does Gum Recession Look Like?

The first sign is usually visual. Compare your teeth now to an older photo. If the teeth appear longer, or if the gumline sits unevenly across different teeth, recession is likely underway.

Look closely at the base of each tooth. Recession often creates a visible V-shaped notch where the gum meets the tooth. This notch can be shallow or deep enough to trap food. The exposed root surface looks different from the crown of the tooth. It is typically darker, yellowish, or brownish, and it may feel smooth or slightly rough to your tongue.

In some cases, the gums look pale or slightly receded in a straight line across several teeth. In other cases, only one tooth is affected, leaving a single spot that looks like a window has opened at the gumline. The gum tissue itself may appear thin, shiny, or tight in the affected area.

What Does Early Gum Recession Look Like?

Early recession is easy to miss. The gumline may drop by just one or two millimeters, which is barely noticeable without comparing to old photos. The first clue is often sensitivity. A tooth that suddenly reacts to cold water, sweet foods, or brushing may have a small area of exposed root.

You may also notice a slight darkening at the edge of the gumline, like a thin shadow line. This is the root surface beginning to show. Another early sign is a change in how your teeth feel when you brush. If the bristles catch on a rough spot near the gumline, that roughness is exposed root structure.

Check the back of your teeth with a mirror. Recession on the tongue side of the teeth is common and often goes unnoticed because it is harder to see. Run your fingernail gently along the gumline. A small ledge or step where the root begins is an early indicator.

What Causes the Gums to Pull Back?

Gum recession has several causes, and most people have more than one. Aggressive brushing is the most common cause. Brushing with a hard-bristled brush, or using a back-and-forth scrubbing motion, slowly wears away the gum tissue over years. The damage is gradual, which is why it often appears in middle age.

Periodontal disease is the other major cause. Bacterial infection inflames the gums and destroys the bone and connective tissue that hold teeth in place. As the supporting structure deteriorates, the gums detach and recede. This type of recession is often accompanied by bleeding when brushing, persistent bad breath, and a change in how teeth fit together when you bite.

Other contributing factors include:

• Teeth grinding or clenching — the pressure can push teeth outward and thin the gum tissue over time.
• Misaligned teeth or bite issues — a tooth sitting outside the line of the arch has thinner bone and gum on one side.
• Tobacco use — reduces blood flow to gum tissue, making it more fragile.
• Lip or tongue piercings — constant rubbing against the gumline can wear tissue away.
• Genetics — some people naturally have thin, delicate gum tissue.

Age is also a factor. Recession becomes more common after age 40, partly from years of cumulative wear and partly from natural changes in gum tissue thickness.

How Do You Know If Recession Is Getting Worse?

Measure it. Take a photo of your teeth every three months using the same lighting and angle. Compare the gumline height. If the roots appear longer in each new photo, the recession is active.

Sensitivity is another indicator. As more root becomes exposed, the sensitivity typically spreads to more teeth or worsens in intensity. The dentin layer of the root contains microscopic tubes that lead directly to the nerve inside the tooth. When these tubes are exposed, any temperature change or acidic food triggers a response.

You can also feel changes with your tongue. Run the tip of your tongue along the gumline of each tooth. A deepening groove, a sharper edge, or a larger area of smooth root surface means the recession has progressed. If food starts getting stuck between teeth where it never did before, the recession has created a trap.

A dentist can measure recession precisely with a periodontal probe. The measurement is recorded in millimeters, and comparing these numbers across visits is the most reliable way to track progression. The American Dental Association recommends regular dental visits, and your dentist will typically record these measurements at each checkup.

When Does Gum Recession Become a Serious Problem?

Recession becomes serious when it threatens the tooth’s structure. The root of a tooth is not protected by enamel like the crown. It is covered by cementum, a much thinner and softer layer. Once recession exposes the root, that area is vulnerable to decay and erosion.

Pain is a clear sign that the problem has advanced. If you feel a sharp, sudden pain when eating something cold or sweet, the nerve is being stimulated through the exposed dentin. This is not something to ignore. The pain may fade as the nerve adapts, but the structural problem remains.

Loose teeth are a late sign. Recession that has progressed to the point where the tooth feels mobile indicates significant bone loss. This is a dental emergency that requires immediate attention. The same applies to visible changes in tooth position, such as gaps appearing between teeth or teeth shifting out of alignment.

Bleeding gums alongside recession points to active periodontal disease. Recession alone does not typically cause bleeding. If both are present, the infection is likely driving the tissue loss, and treatment needs to address the infection first.

Can Receded Gums Grow Back?

No. Once gum tissue has receded, it does not regenerate on its own. The body cannot rebuild the lost tissue without intervention. This is a firm statement supported by decades of dental research.

Products marketed as gum-regenerating toothpastes, rinses, or gels have not been proven to restore lost gum tissue in human clinical trials. Some may reduce sensitivity or improve gum health, but they do not make the tissue grow back. If a product claims otherwise, treat the claim with skepticism.

What can be done is prevention of further recession and, in some cases, surgical repair. A periodontist can perform a gum graft, taking tissue from the roof of the mouth or a donor source and attaching it to the receded area. This procedure covers the exposed root and can prevent further loss. Not everyone needs surgery, but it is the only method that actually replaces lost tissue.

How Is Gum Recession Treated?

Treatment depends on the cause and severity. If aggressive brushing is the culprit, the first step is changing technique. Use a soft-bristled brush and gentle circular motions rather than scrubbing. The goal is to clean the teeth without traumatizing the gums.

For sensitivity, desensitizing toothpaste containing potassium nitrate or stannous fluoride can help. These compounds block the microscopic tubules in the dentin, reducing nerve stimulation. Fluoride varnish applied in a dental office provides a stronger, longer-lasting barrier.

If periodontal disease is the cause, treatment starts with a deep cleaning procedure called scaling and root planing. This removes bacteria and hardened plaque from below the gumline. In some cases, antibiotics are used to control the infection. Once the infection is under control, the gums may reattach slightly, though full recovery of lost tissue is unlikely.

For cosmetic concerns or advanced recession, surgical options exist. The gum graft procedure mentioned earlier is the most common. Another option is the pinhole surgical technique, where the dentist makes a small hole in the gum and gently slides the tissue down to cover the root. Both procedures have good success rates, but they are not right for everyone.