How Long Can I Leave a Broken Tooth in My Mouth?

A broken tooth demands immediate attention, even if pain is absent. The tooth’s layered structure is compromised by any break, creating a direct pathway for oral bacteria to invade sensitive inner tissues. There is no safe period to leave a broken tooth untreated, as the risk of escalating damage begins immediately. Prompt professional care is the only way to minimize infection, save the natural tooth structure, and limit the complexity and expense of the eventual repair.

Immediate First Aid and Temporary Measures

The first step is to manage immediate trauma and discomfort before reaching a dentist. Gently rinse the mouth with warm water to clear debris and blood. If you locate any pieces of the broken tooth, collect them and store them in milk or saline solution to keep them moist until you reach the dental office.

To control bleeding, apply gentle pressure to the area with clean gauze for ten to fifteen minutes. If swelling develops, a cold compress or ice pack held against the cheek can help reduce inflammation and numb the area. Apply the cold compress in intervals of fifteen minutes on and fifteen minutes off.

Manage pain with over-the-counter pain relievers such as acetaminophen or ibuprofen, following dosage instructions carefully. Avoid aspirin, as it can thin the blood and worsen bleeding. If the broken edge is sharp, cover it with temporary dental wax, sugar-free gum, or a piece of paraffin to protect the tongue, cheek, and gums from irritation.

Assessing Urgency Based on Fracture Type

The urgency of professional treatment depends on the depth and location of the fracture.

Minor Chips (Enamel Fracture)

A minor chip involves only the tooth’s outermost layer (enamel). These breaks are generally painless and do not bleed. They still require attention within a few days to smooth rough edges and prevent the fracture from worsening.

Moderate Breaks (Enamel-Dentin Fracture)

A moderate break extends past the enamel and exposes the dentin, the yellowish layer beneath. Dentin is porous and contains microscopic tubes leading to the nerve, which causes sensitivity to temperature and air. This exposure risks contamination, and treatment should be sought within 24 to 48 hours to seal the dentin and protect the pulp.

Severe Breaks (Pulp Exposure)

The highest urgency involves a fracture that reaches the pulp tissue (Enamel-Dentin-Pulp Fracture). The pulp is the soft inner core containing the nerve and blood vessels. Exposure is signaled by severe, throbbing pain, bleeding, or a visible pink discoloration on the fracture surface. This is a dental emergency requiring treatment within hours to maximize the chance of saving the nerve and preventing widespread infection. Root fractures, which occur below the gum line, often show only slight mobility or bleeding from the gum crevice, but they also require urgent dental referral within 24 to 48 hours for stabilization.

Consequences of Delayed Professional Treatment

Delaying treatment allows biological damage to occur, significantly worsening the prognosis. The primary concern is bacterial invasion through the exposed inner layers of the tooth. Once the dentin or pulp is exposed, oral bacteria rapidly colonize the internal structure, leading to infection.

If bacteria reach the pulp, the tissue becomes inflamed and infected, known as pulpitis. This infection can lead to pulp necrosis, or nerve death, which can happen within hours to days depending on the size of the exposure. Even if the initial pain subsides, it may simply indicate the nerve has died, not that the problem has resolved.

An untreated infection can spread beyond the root tip into the jawbone, forming a painful abscess. This pocket of pus can cause swelling in the face and gums and, in severe cases, the infection can enter the bloodstream. Furthermore, a structurally compromised tooth will continue to weaken with normal chewing forces, increasing the likelihood of the fracture deepening. What initially required a simple filling may progress to needing a complex root canal or extraction, resulting in higher costs and more invasive procedures.

Definitive Dental Repair Options

Once the immediate threat is stabilized, a dentist determines the definitive repair based on the extent of the damage.

For minor chips involving only the enamel, the tooth is often fixed with dental bonding. This procedure uses a tooth-colored composite resin that is applied, molded, and hardened with a special light. This quick, minimally invasive repair restores the tooth’s appearance and function.

If the fracture is larger or involves a significant portion of the dentin, a dental crown is typically the preferred option. A crown is a tooth-shaped cap that covers the entire visible surface of the damaged tooth, restoring its shape, strength, and protecting it from further breakage. For front teeth with moderate damage, a veneer—a thin, custom-made shell—may be used to cover the front surface and mask the fracture.

When the break extends into the pulp, the most common procedure is root canal therapy. This treatment removes the infected nerve tissue and seals the inner chamber to prevent reinfection. A dental crown is almost always placed over the treated tooth afterward to protect its structure from fracture. If the tooth is fractured far below the gum line or the damage is too extensive, the last resort is extraction, requiring replacement with a bridge or a dental implant.