Gums recede when tissue that normally hugs your teeth gets worn away, infected, or damaged, exposing more of the tooth and eventually the root. This doesn’t happen overnight. It’s a gradual process, and by the time you notice your teeth looking longer or feel a notch near the gumline, you’ve likely been losing tissue for months or years. The good news is that once you identify the cause, you can stop further loss and, in many cases, restore what’s gone.
The Most Common Causes
Gum recession has five primary drivers: brushing too hard, plaque and tartar buildup, periodontal (gum) disease, misaligned teeth, and tobacco use. Most people have at least two of these working together. Understanding which ones apply to you is the first step toward stopping the process.
Brushing aggressively is one of the most overlooked causes because it feels like you’re doing something good for your teeth. But a hard-bristled toothbrush applies nearly twice the pressure of a soft one. Research comparing brush types found that hard manual brushes averaged about 19.5 grams per square millimeter of pressure, while soft manual and powered soft brushes both came in around 11.3. That extra force, repeated twice a day for years, physically scrubs gum tissue away from the tooth surface. The damage tends to show up on the side of the mouth opposite your dominant hand, where you naturally press harder.
Plaque buildup works differently. When bacteria-laden plaque hardens into tartar along and below the gumline, it triggers chronic low-grade inflammation. Over time, this inflammation breaks down the attachment between your gums and teeth. The gums pull away, forming pockets where more bacteria collect, which deepens the cycle. Left unchecked, the bacteria begin eroding the ligaments, soft tissues, and bone holding your teeth in place. This is periodontal disease, and it’s one of the most common causes of tooth loss in adults.
Tobacco and Vaping Both Cause Damage
Smoking and chewing tobacco are well-established risk factors for gum recession because nicotine restricts blood flow to gum tissue, starving it of oxygen and nutrients. But vaping isn’t a safe alternative. Periodontists are now seeing people in their twenties and thirties who vape and already need gum grafts.
The tissue damage from e-cigarettes goes beyond nicotine. In a study at Ohio State University, researchers made a small standardized wound on the roof of the mouth in both vapers and non-vapers. The non-vaping group healed within four to seven days, with no visible trace of the wound. The e-cigarette group still hadn’t fully healed at 21 days. That dramatically slowed healing capacity means your gums are less able to repair everyday micro-damage, accelerating recession over time.
Orthodontic Treatment as a Risk Factor
Braces and clear aligners move teeth by applying constant pressure to the surrounding bone. That pressure doesn’t just affect the teeth; it also remodels the bone and gum tissue around them. If your gum tissue is naturally thin, or if teeth are moved too quickly, the bone can remodel in a way that reduces gum coverage. This is especially common around the lower front teeth, where tissue tends to be thinnest.
People who are genetically prone to gum issues face the highest risk during orthodontic treatment. If you’ve noticed recession during or after braces, the movement itself may have caused mild bone loss that allowed the gums to drop. This doesn’t mean orthodontics was the wrong choice, but it’s a factor worth discussing with your provider, especially before a second round of treatment.
What Recession Feels Like
The earliest sign is usually a visual one: your teeth look longer than they used to, or you can see a yellowish area near the gumline where the root is starting to show. Roots lack the hard enamel coating that protects the visible part of your tooth, so exposed roots are more sensitive to hot, cold, and sweet foods. You might also feel a small notch or ridge where the gum meets the tooth when you run your tongue or fingernail along the gumline.
Some people notice bleeding during brushing before the recession becomes visible. Others feel no symptoms at all until the exposure is significant. Because the process is so gradual, dentists often catch it before patients do, which is one reason regular cleanings matter even when nothing seems wrong.
Gum Tissue Does Not Grow Back on Its Own
This is the part most people don’t want to hear. Once gum tissue has receded, it will not spontaneously regenerate. The mouth heals remarkably well from surgical wounds, better than skin in many ways, but the specific attachment between gum and tooth doesn’t rebuild itself. And the jawbone lost to periodontal disease cannot be grown back naturally either. Researchers at King’s College London studying tissue regeneration have noted that this inability to fully self-repair after gum disease is one of the central challenges in dentistry.
That said, you can absolutely stop further recession. Switching to a soft-bristled brush, using gentle circular motions instead of scrubbing, keeping plaque under control with daily flossing, and quitting tobacco or vaping all remove the forces driving the loss. For mild cases, stopping the cause and maintaining good hygiene may be all that’s needed.
How Gum Grafting Works
When recession is moderate to severe, or when exposed roots cause persistent sensitivity or cosmetic concerns, gum grafting can restore lost tissue. The procedure has an excellent track record: over 90% of grafts successfully cover exposed roots, reduce sensitivity, and prevent further recession.
The most common type is a connective tissue graft. Your periodontist takes a small piece of tissue from beneath a flap on the roof of your mouth and uses it to cover the exposed root area. A newer “tunneling technique” uses smaller incisions for better comfort and healing. For people with very thin gums, a free gingival graft takes tissue directly from the surface of the palate to create a thicker, more protective barrier where the gum is weakest.
A newer option called the Pinhole Surgical Technique skips the tissue harvesting entirely. Instead, the periodontist makes a tiny hole in the gum and repositions the existing tissue to cover the exposed area, with no cutting and no sutures. Recovery is faster and less painful than traditional grafting. Most patients experience some soreness and swelling, but it’s noticeably milder than with a conventional graft.
The Pinhole Technique does have limitations. It’s not suitable for severe recession, where traditional grafting remains the better option. It tends to cost more and isn’t always covered by insurance. Because it’s a relatively newer procedure, long-term data is still catching up to the decades of evidence behind traditional grafts. Results also depend heavily on the skill of the provider performing it.
Preventing Further Loss
Regardless of how much recession you already have, the same habits protect against more. Use a soft-bristled toothbrush and let the bristles do the work rather than pressing hard. If you use an electric toothbrush, many models have pressure sensors that alert you when you’re pushing too firmly. Floss daily to remove plaque from the spaces your brush can’t reach, especially below the gumline where pockets tend to form.
If you grind your teeth at night, a custom night guard from your dentist protects both the enamel and the gum tissue from the repeated lateral forces that can accelerate recession. Misaligned teeth that create uneven bite pressure can also contribute, so correcting alignment issues sometimes helps protect the gums long-term, provided the orthodontic treatment itself is managed carefully.
For anyone who has had gum grafting or the Pinhole procedure, addressing the original cause is essential. These procedures treat the current recession but do not immunize you against future loss. Without changes in brushing habits, oral hygiene, or tobacco use, the recession will return.