Why Gums Recede, and the Causes You Can Actually Change

When patients in Palo Alto notice that a tooth looks longer than it used to, the first question is usually about treatment. We think a better first question is: why is it happening? Receded gum does not grow back by itself, and even a well-placed graft can be undone if the original cause keeps working away in the background. The encouraging news is that several of the most common causes are within your control. This article sorts them into three groups: things you can change, things you can manage, and things you can only plan around.

What recession is, briefly

Healthy gum fits snugly around the neck of each tooth and covers the root. In recession, that margin gradually moves down, exposing root surface. Roots have no enamel, so they are softer, more prone to sensitivity and more vulnerable to a type of decay called root caries. Recession is very common, becoming more frequent with age, and it often develops slowly enough that people do not notice until a spot becomes sensitive or a small notch appears near the gumline.

Causes you can change

How you brush

Brushing too hard is one of the most frequent contributors, especially in people who are otherwise very diligent. A firm brush, a scrubbing back-and-forth motion and heavy pressure gradually wear gum tissue away. A few adjustments make a real difference:

• Use a soft or extra-soft brush, and replace it before the bristles splay outward.
• Hold it lightly, closer to a pen grip than a fist.
• Angle the bristles toward the gumline and use small, gentle circles rather than long strokes.
• If you use an electric brush, let it do the work and choose one with a pressure indicator.

We are happy to watch your technique at a visit and suggest changes. It takes a couple of minutes and is often the most valuable thing we do.

Tobacco

Smoking and other tobacco use are linked to recession and to gum disease more broadly, and they impair healing after any treatment. Stopping is one of the most effective changes a person can make for their gums.

Causes you can manage

Gum disease

Periodontal disease destroys the gum and bone that support a tooth, and the gum margin follows the bone downward. It is often painless, so regular measurement is the only reliable way to catch it. Where it is present, treatment such as scaling and root planing, followed by consistent home care and maintenance visits, can stop further loss. Our guide to early warning signs describes what to look for.

Clenching and grinding

Heavy forces from night-time grinding are thought to contribute to recession and to the small notches that sometimes form at the base of teeth. A custom night guard spreads and absorbs those forces. If you wake with a tired jaw or have been told your teeth show wear, this is worth raising.

Tooth position

Crowded, rotated or prominent teeth can sit near the thin outer edge of the bone that holds them, leaving the gum with little support. Orthodontic treatment can sometimes bring a tooth back into a more protected position, although tooth movement itself must be planned carefully so teeth are not pushed beyond their bony housing.

Old dental work

Restorations with rough or overhanging edges, and partial dentures that press on the gum, can irritate tissue over time. Replacing or adjusting them removes a steady source of trouble.

Causes you can only plan around

Some people inherit naturally thin, delicate gum tissue. It is not something you caused and not something you can change, but it does mean you have less margin for wear. Thin tissue is a reason to be especially gentle with brushing and to keep up regular checks. It can also influence treatment choices, since some grafting techniques are better at thickening tissue than others. A muscle attachment that tugs on the gumline is another anatomical factor we look for.

Signs worth noting between visits

• A tooth that looks longer, or a yellowish band of root near the gum.
• Sensitivity to cold or sweetness in one particular spot.
• A small step or groove you can feel with a fingernail at the gumline.
• Gums that bleed, look puffy or seem to have separated from the tooth.

What we look at in an evaluation

We measure how far the gum has moved, check the thickness and quality of the tissue, look at your bite and wear pattern, review your brushing technique and, where needed, take X-rays. The aim is to name the specific causes at work in your mouth, since two people with similar-looking recession can need quite different advice. If the recession is advanced or bothers you cosmetically, we will talk through options to cover the root, which our overview of recession treatment summarises.

Questions we are asked

If I change how I brush, will my gums grow back?

No, lost gum does not regenerate by itself. Changing habits stops the process from continuing, which is often the most important goal.

Is recession always a sign of gum disease?

Not always. People with very clean teeth can have recession from brushing force, thin tissue or tooth position. An exam tells the difference.

Should I stop using whitening toothpaste?

Some are more abrasive than others. If you have exposed roots, a low-abrasion or sensitivity toothpaste is usually a gentler choice. We can suggest one.

If you have noticed changes along your gumline, a calm evaluation is the best place to begin. Eclat Dental Studio is in Mountain View, off El Camino Real, a straightforward trip from Palo Alto. Call (650) 917-8348, or read more on our gum care page.