How Long Can a Broken Tooth Stay in Your Mouth?

A broken tooth can range from a minor chip affecting only the outer layer to a deep fracture extending into the inner structure. No broken tooth should remain untreated for an extended period. Any loss of tooth structure compromises the protective barrier that shields sensitive internal tissues from the harsh environment of the mouth. Seeking professional assessment quickly is the most reliable way to prevent long-term damage and determine the appropriate timeline for intervention.

Immediate Care Steps Following the Break

Immediate actions following a dental fracture focus on temporary comfort and preventing further injury until professional care is secured, starting with gently rinsing the mouth with warm water to clean the area and remove loose fragments. Applying a cold compress or ice pack to the cheek can help mitigate swelling. Pain can be managed with over-the-counter anti-inflammatory medications, but avoid chewing on the injured side to prevent additional stress. If a sharp edge irritates soft tissues, cover it temporarily with dental wax or sugarless gum. These steps offer short-term relief but do not address the underlying structural damage.

Varying Urgency Based on Fracture Type

The permissible delay before permanent treatment is directly proportional to the depth of the structural damage.

Minor Chips (Low Urgency)

The least urgent injury involves a minor chip confined entirely to the outer enamel layer. Since enamel is the hardest substance in the human body and contains no nerves, these superficial breaks usually present no immediate pain or risk of infection. This allows for a delay of several weeks for cosmetic repair.

Dentin Exposure (Moderate Urgency)

A moderate-urgency scenario occurs when the fracture extends through the enamel and exposes the underlying dentin layer. Dentin contains microscopic tubules leading directly to the tooth’s nerve, resulting in heightened sensitivity to temperature changes and air. While these fractures do not instantly lead to infection, the exposed dentin acts as a porous pathway for oral bacteria to approach the pulp chamber. Treatment should ideally occur within days to a week to seal this vulnerability.

Pulp Exposure (High Urgency)

The highest urgency is associated with a fracture that penetrates completely through the enamel and dentin, exposing the soft, innervated pulp tissue. This pulp contains the nerves and blood vessels, and its direct exposure to the oral environment constitutes a dental emergency. Bacteria can colonize the pulp almost instantly, leading to infection and inflammation. Intervention is necessary within 24 to 48 hours to have the best chance of saving the internal tissue.

Health Risks Associated with Delay

Delaying treatment allows for the silent progression of biological damage, turning a manageable fracture into a complex medical problem. When dentin or pulp is exposed, oral bacteria gain access to the tooth’s interior, initiating pulpitis, which is inflammation of the nerve tissue. This inflammation often causes severe, throbbing pain, but a deceptive period can follow where the pain subsides, creating a false sense of security. The cessation of pain often signifies that the infection has progressed to nerve death, or pulpal necrosis, as the blood supply to the pulp is cut off by the swelling.

Once the pulp is necrotic, the infection continues to spread down the root canal system and into the surrounding jawbone. This unchecked spread can lead to the formation of a dental abscess, a pocket of pus causing localized swelling in the gums or face. An abscess represents a contained infection that carries the risk of spreading beyond the oral cavity, potentially causing systemic issues. In rare but serious cases, infections originating from a necrotic tooth can spread to the neck and head (cellulitis) or even enter the bloodstream. Furthermore, the compromised structure is susceptible to catastrophic failure, where biting forces extend the fracture vertically down the root, requiring extraction.

Permanent Repair Options

The definitive treatment for a broken tooth is determined by the extent of the damage.

Composite Bonding

Minor chips confined to the enamel are typically repaired using composite bonding. This involves sculpting a tooth-colored resin material onto the tooth and hardening it with a specialized light. This conservative process restores the tooth’s appearance and contour.

Dental Crowns

When the fracture involves a significant portion of the tooth structure or exposes the dentin, a dental crown is often the preferred solution. A crown is a custom-made cap that covers the entire visible portion of the tooth above the gum line. It restores the tooth’s shape, strength, and function while protecting the underlying structure from further damage. Crowns are designed to withstand normal chewing forces for many years.

Root Canal Treatment and Extraction

If the fracture has exposed the pulp and led to infection, a root canal treatment is necessary to remove the infected nerve tissue from the pulp chamber and root canals. After cleaning and sealing the interior of the tooth, a crown is almost always placed over the treated tooth to protect it from fracture. Extraction becomes the final option when the fracture extends too deeply below the gum line or the damage is too extensive for reliable restoration.