Root Canal Treatment (Endodontics): Clinical Steps & 2026 Cost Structures.

1. When is a Root Canal Needed?

Root canal treatment (endodontic therapy) is a clinical procedure designed to save a severely decayed, infected, or damaged tooth. The therapy is required when the dental pulp—the soft tissue containing nerves, blood vessels, and connective tissue inside the tooth—becomes inflamed or necrotic (dies).

Common signs of dental pulp infection include:

• Severe, throbbing toothache that worsens when lying down or applying biting pressure.
• Prolonged sensitivity to hot or cold temperatures, even after the stimulus is removed.
• Discoloration or darkening of the affected tooth.
• Swelling or tenderness in the adjacent gums, sometimes accompanied by a persistent pimple on the gum (fistula).

2. Anterior vs. Molar Complexity

The anatomical structure of a tooth dictates the complexity and cost of root canal therapy:

• Anterior Teeth (Front Teeth): Usually have a single, straight root canal, which makes them easier to access and clean. Treatment is straightforward and typically completed in a single session.
• Premolars: Generally have one or two root canals, presenting moderate complexity.
• Molars (Back Teeth): Highly complex. Molars typically have three to four root canals that can be thin, curved, or branched. Locating and thoroughly cleaning all these canals requires advanced skills and magnification (dental microscopes). Consequently, molar treatments require more clinic time and are significantly more expensive.

3. Clinical Procedure Phases

A typical root canal treatment involves three primary phases, which may be spread across 3 to 4 clinical sessions for molar teeth:

1. Phase 1: Access & Pulpectomy. Under local anesthesia, the dentist prepares an opening in the crown of the tooth to access the pulp chamber. The infected or dead pulp is carefully removed from the canals using specialized endodontic files.
2. Phase 2: Cleaning & Shaping. The canals are irrigated with antibacterial solutions (sodium hypochlorite) and mechanically shaped using rotating nickel-titanium files. Medicated paste is placed inside the canals, and the tooth is sealed with a temporary filling to allow inflammation to settle.
3. Phase 3: Obturation. Once the infection has fully resolved, the canals are filled and hermetically sealed with a biocompatible material called gutta-percha and root sealer. A permanent filling is then placed to restore the opening.

4. Crown Restorations

Following a root canal, the tooth is no longer vital—it has lost its internal blood supply and nerve. This causes the remaining tooth structure to become dry, brittle, and highly susceptible to fractures under normal chewing forces.

Therefore, clinical guidelines strongly recommend placing a dental crown on all treated premolars and molars to protect their structure. A crown acts as a protective cap, encasing the tooth to prevent splits. If a patient decides not to get a crown, the tooth is at a high risk of breaking, which often leads to extraction, undoing the root canal work.

5. Pioneer Generation & Flexi-Medisave

Singapore citizens have access to several subsidy schemes to reduce their out-of-pocket costs for endodontic care:

The upcoming **Flexi-Medisave framework** (slated for mid-2026) allows senior citizens aged 60 and above to utilize up to S$400 per year from their own or their spouse's Medisave account specifically for outpatient root canals and crowns. This can be used at CHAS clinics and public healthcare institutions, and does not require a CHAS card.

6. 2026 Costs & Success Rates

Root canal costs vary based on tooth anatomy and the type of subsequent restoration chosen.

With a success rate exceeding **95%**, root canal therapy is highly effective for saving natural teeth, avoiding the need for extractions and implant replacements.

Disclaimer: Prices are indicative ranges. Consult your dentist for exact fees.