Gum recession happens when the gum tissue surrounding your teeth wears away or pulls back, exposing more of the tooth or its root. It affects a surprisingly large number of people: a systematic review of clinical studies estimated that about 81% of adults have at least some degree of recession. The causes range from brushing habits to hormonal shifts to gum disease, and most of them are either preventable or treatable once identified.
The Most Common Causes
Recession rarely has a single trigger. For many people, several factors overlap. The five primary causes are aggressive brushing, plaque and tartar buildup, periodontal (gum) disease, injury to the gum tissue, and misaligned teeth. Understanding which ones apply to you is the first step toward stopping it from getting worse.
Brushing too hard is one of the most common and most overlooked culprits. If you use a medium or hard-bristled toothbrush, or if you scrub back and forth with force, you gradually wear away the thin band of tissue at the gumline. The American Dental Association specifically recommends soft-bristled toothbrushes with gentle pressure to minimize this kind of damage. Switching to a softer brush won’t reverse recession that’s already happened, but it can stop you from making it worse.
Plaque, the sticky bacterial film that forms on teeth daily, is the other major driver. When plaque isn’t removed thoroughly, it hardens into tartar, which can only be cleaned off by a dental professional. Over time, the bacteria in plaque and tartar trigger inflammation that breaks down gum tissue. This is the beginning of periodontal disease, which is the leading cause of severe recession.
How Gum Disease Leads to Recession
Gum disease starts quietly. In its early stage (gingivitis), your gums may bleed when you brush or look slightly red and puffy. At this point, no permanent damage has occurred. But if plaque bacteria seep beneath the gumline and aren’t addressed, they begin eroding the ligaments, soft tissues, and bone that anchor your teeth in place.
As the disease progresses, pockets form between your teeth and gums. These pockets trap more bacteria, accelerating the cycle of tissue loss. The gums pull away from the teeth, exposing root surfaces that were never meant to face the outside environment. Roots lack the hard enamel coating that protects the crown of your tooth, so they’re more vulnerable to decay and sensitivity to hot, cold, or sweet foods.
Hormones, Genetics, and Other Risk Factors
Hormonal changes throughout life can make gum tissue more vulnerable. During ovulation and the days before a period, rising progesterone levels can cause gums to swell and bleed more easily. Hormonal birth control, including the pill, shot, vaginal ring, and hormonal IUDs, can raise estrogen and progesterone enough to make gums more sensitive, red, or swollen. After menopause, gum problems and bone loss tend to accelerate.
These hormonal shifts don’t directly cause recession on their own, but they create conditions where the tissue is more fragile and more easily damaged by brushing, plaque, or minor trauma.
Genetics play a role too. Some people are born with naturally thinner gum tissue or less bone support around certain teeth, particularly the lower front teeth. If you’ve always had thin gums, you’re at higher risk regardless of how well you brush. Tobacco use is another significant risk factor because it reduces blood flow to the gums, slowing healing and making tissue more prone to breaking down.
Orthodontic Treatment and Tooth Position
Crooked or misaligned teeth can cause recession because certain teeth may sit outside the normal arch of bone. When a tooth juts forward or sits at an angle, the bone and gum tissue on one side may be paper-thin or absent entirely.
Braces and clear aligners can also contribute to the problem. When orthodontic treatment pushes teeth too far outside the supporting bone, particularly the lower front teeth, recession can develop during or after treatment. This risk is highest in people who already have thin tissue or limited bone support. If you’re considering orthodontic work and have a history of recession, it’s worth raising this with your provider before treatment begins.
What Happens If You Ignore It
Recession doesn’t reverse on its own. Once gum tissue pulls back, it stays back. Mild recession (a millimeter or two) may not cause symptoms, but as more root surface becomes exposed, you’ll likely notice increased sensitivity. Cold drinks, hot food, or even a breath of cold air can trigger a sharp sting in affected teeth.
The exposed root surface is also softer than enamel, making it significantly more susceptible to cavities. Root decay tends to progress faster and is harder to treat than cavities on the crown of a tooth. In advanced cases where bone loss accompanies the recession, teeth can become loose. This progression from minor gum loss to tooth mobility is exactly how periodontal disease leads to tooth loss in adults.
Non-Surgical Treatment Options
For mild cases, treatment focuses on stopping the progression rather than restoring lost tissue. A professional deep cleaning, which removes plaque and tartar from below the gumline, is typically the first step. Your dentist or hygienist smooths the root surfaces so gum tissue can reattach more snugly. Improving your brushing technique and switching to a soft-bristled brush can prevent further mechanical damage.
Desensitizing toothpaste or professional fluoride treatments can help manage root sensitivity in the short term. If grinding or clenching your teeth at night is contributing to the problem, a custom night guard can reduce the forces that stress gum tissue.
Gum Grafting for Moderate to Severe Cases
When recession is significant enough to expose substantial root surface, surgical grafting is the standard treatment. There are two main types.
A connective tissue graft is the more common approach and is often used for severe recession or cases where exposed roots need coverage. The surgeon removes tissue from beneath a small flap in the roof of your mouth, places it over the receded area, and stitches it into position. The flap on the palate is then closed. This type of graft is particularly effective for reducing sensitivity and protecting exposed roots after gum disease.
A free gingival graft takes a smaller piece of tissue directly from the surface of the palate and places it at the gumline. Because less tissue is removed, the surgeon can make more precise adjustments. This approach is often used to thicken thin gum tissue and can produce strong cosmetic results.
Recovery from traditional grafting takes roughly four to six weeks for full healing. Expect swelling, bruising, and tenderness for the first one to two weeks, especially at the donor site on the roof of your mouth. You’ll need to eat soft foods and avoid vigorous brushing for several days after surgery.
The Pinhole Technique
For mild to moderate recession, a newer option called the Pinhole Surgical Technique skips the grafting process entirely. Instead of transplanting tissue, the dentist makes a tiny hole in the gum above the receded area and gently repositions the existing tissue downward to cover the exposed root. Collagen strips are placed through the pinhole to stabilize the tissue in its new position.
The recovery is considerably faster. Most patients resume normal activities within a day or two, and swelling typically resolves within a week. Many people see an immediate improvement in their gumline. The results tend to last long-term with good oral care. The trade-off is that the pinhole technique isn’t suitable for severe recession where large amounts of tissue are needed. For most mild to moderate cases, though, the outcomes are comparable to traditional grafting with significantly less discomfort.
Preventing Further Recession
Whether you’ve had treatment or are trying to keep early recession from worsening, the basics matter more than anything else. Use a soft-bristled toothbrush and brush gently in small circular motions rather than sawing back and forth. Electric toothbrushes with pressure sensors can help if you tend to bear down too hard. Floss daily to remove plaque from areas your brush can’t reach.
Regular dental cleanings, typically every six months, catch tartar buildup before it triggers inflammation. If you smoke, quitting is one of the most impactful things you can do for your gum health. And if you notice your gums bleeding, looking red, or pulling away from your teeth, don’t wait for pain to develop. Recession progresses slowly enough that early intervention can save you from more invasive treatment later.