An exposed tooth root usually looks like a yellow, tan, or darker area at the gum line, and the affected tooth may look longer than nearby teeth. You may also notice an uneven gum line, a notch near the base of the tooth, or sensitivity to cold, heat, sweets, brushing, or touch. Pictures can help you recognize a pattern, but they cannot confirm whether you are seeing an exposed root, worn dentin, decay, tartar, or a crack. A dental examination is needed for diagnosis.
Seek prompt dental care if you have severe or worsening pain, facial swelling, pus, fever, a broken tooth, or recent dental trauma. These symptoms may point to a problem deeper than gum recession.
Pictures of Exposed Tooth Roots: What the Images Show
The examples below show gum recession with visible root surfaces. In many cases, the exposed area appears more yellow or tan than the white enamel above it because the root is covered by cementum rather than enamel. Your teeth may look different from these examples, so do not use a picture as a substitute for an examination.
What Does an Exposed Tooth Root Look Like?
The most common visual clue is a change at the gum line. The tooth may appear longer because the gum has moved away from its previous position. The uncovered root surface is often yellow, tan, or light brown and may look less glossy than enamel. Some people notice a shallow groove or V-shaped notch near the gum line.
Visual Signs to Watch For
- A tooth that looks longer than the teeth beside it
- An uneven or receding gum line
- A yellow, tan, or darker area below the enamel
- A notch, groove, or worn area near the gum line
- Sensitivity when brushing or when consuming hot, cold, sweet, or acidic foods and drinks
Exposed roots do not always hurt. The American Dental Association lists exposed tooth roots among the possible causes of tooth sensitivity, but sensitivity can also come from decay, a fracture, worn enamel, or a damaged filling. Learn more about sensitive teeth from MouthHealthy.
Exposed Root vs. Exposed Dentin vs. Exposed Nerve
| What You May Be Seeing | Typical Location or Appearance | What It Means |
|---|---|---|
| Exposed tooth root | Yellow, tan, or darker area directly below a receding gum line | Gum recession has uncovered part of the root surface. Sensitivity may occur, but some cases are painless. |
| Exposed dentin | A worn or uncovered area on the crown or root that may feel sensitive | Dentin has lost some of its protective enamel or cementum. It may occur with recession, wear, erosion, or a cavity. |
| Exposed pulp or “nerve” | A deep cavity, fracture, or traumatic opening that may look pink or red and may bleed | The soft tissue inside the tooth may be exposed. This is different from ordinary root exposure and needs prompt dental assessment. |
A photograph cannot reliably distinguish all three. Deep decay, a cracked tooth, tartar, staining, and worn fillings can resemble root exposure. A dentist may examine the gum line, measure recession, test the tooth, and use dental imaging when needed.
Common Causes of Tooth Root Exposure
Exposed roots are usually associated with gum recession. The cause is not always obvious from appearance alone, and more than one factor may be involved.
- Gum disease: Periodontitis can damage the tissues and bone that support the teeth, allowing the gum line to recede.
- Forceful brushing: Repeated heavy pressure or a hard-bristled brush may injure the gum margin and contribute to recession.
- Thin gum tissue or tooth position: Some teeth have less protective gum tissue or sit in a position that makes recession more likely.
- Trauma or dental treatment: An injury, poorly fitting restoration, or movement of a tooth may affect the surrounding gum tissue in some cases.
- Tobacco use: Smoking and other tobacco use can increase the risk of periodontal disease and make gum problems harder to detect or manage.
- Clenching or grinding: Bruxism may contribute to tooth wear or stress near the gum line, but it is not the only possible explanation for recession.
Gum recession can occur at different ages. It may become more common over time, but age alone does not explain why a particular tooth root is exposed.
Concerned About Gum Recession or an Exposed Root?
A dental examination can identify whether the visible area is an exposed root, decay, wear, or another problem. Contact Smile Avenue Dentistry in North York to discuss an assessment and the treatment options that may be appropriate for you.
Treatment Options for Exposed Tooth Roots
Treatment depends on why the root is exposed, how much recession is present, whether the area is sensitive or decayed, and the health of the surrounding gums and bone. Receded gum tissue usually does not return to its previous position without treatment, but several options may help protect the tooth and manage symptoms.
- Desensitizing toothpaste or fluoride: These options may reduce sensitivity and help protect vulnerable root surfaces.
- Dental bonding or another restoration: In selected cases, a dentist may cover a worn or sensitive area with a tooth-coloured material. Learn more about dental bonding.
- Periodontal treatment: If gum disease is present, professional cleaning, scaling and root planing, or other periodontal care may be recommended.
- Gum grafting or root-coverage surgery: A periodontist may recommend a graft when additional tissue is needed to cover or protect the exposed root. The American Academy of Periodontology explains gum graft surgery.
- Changes to brushing or bite-related habits: A softer brush, lighter pressure, or treatment for a contributing habit may be advised after the cause is identified.
No single treatment is right for every exposed root. A dentist or periodontist must first determine the cause and whether the root surface, gum tissue, bone, or tooth pulp is involved.
When to See a Dentist in North York
Arrange a dental examination if you notice a new change in your gum line, a tooth that looks longer, ongoing sensitivity, or a visible groove near the gum. Early assessment can help identify the cause and limit additional root wear, decay, or gum damage.
Seek urgent dental care for severe or increasing pain, swelling of the gum or face, pus, fever, a loose tooth, a broken tooth, or symptoms that began after an injury. These signs may indicate infection, fracture, or pulp involvement rather than uncomplicated gum recession. For urgent concerns, see our emergency dental care information.
FAQs
What Does an Exposed Tooth Root Look Like?
An exposed tooth root often appears yellow, tan, or darker than the enamel above it. The tooth may look longer, the gum line may be uneven, and there may be a notch or groove near the gum. A photograph can suggest recession, but only a dental exam can confirm the cause.
Is an Exposed Tooth Root the Same as an Exposed Nerve?
No. An exposed root means gum recession has uncovered part of the root surface. An exposed nerve usually refers to exposed dental pulp after deep decay, a fracture, or trauma. Pulp exposure requires prompt dental assessment.
Can an Exposed Tooth Root Heal on Its Own?
Receded gum tissue usually does not return to its previous position without treatment. Sensitivity may improve with appropriate home care or professional treatment, but the cause should still be assessed so further recession or root decay can be limited.
At What Age Can Gum Recession and Root Exposure Start?
Gum recession can occur at different ages. It may become more common over time, but younger adults can also develop recession because of gum disease, forceful brushing, tooth position, thin gum tissue, or trauma.
Is an Exposed Tooth Root a Dental Emergency?
Mild sensitivity without swelling is not always an emergency, but it should be assessed. Seek urgent dental care for severe or worsening pain, facial swelling, pus, fever, a broken tooth, or recent dental trauma.
What Can Happen If an Exposed Tooth Root Is Not Treated?
An untreated exposed root may remain sensitive and can be more vulnerable to root-surface decay and wear. If gum disease is causing the recession, the supporting tissues may also continue to deteriorate. The outcome depends on the cause and severity.
