Presenting Clinical Problem
- Single anterior tooth discolouration following previous root canal treatment
- Progressive darkening of non-vital tooth over time
- Visible colour discrepancy compared to adjacent natural teeth
- Patient reported aesthetic concerns regarding tooth appearance
- Post-endodontic discolouration is a recognised clinical occurrence
- Primary objective: Improve tooth colour to achieve better aesthetic harmony
Treatment Plan & Clinical Process
Phase 1: Assessment and Treatment Planning
- Evaluation of existing root canal treatment adequacy
- Radiographic assessment of periapical health and seal integrity
- Assessment of tooth structure and suitability for internal bleaching
- Discussion of internal bleaching procedure, alternative options, and realistic expectations
- Shade assessment and documentation of baseline tooth colour
Phase 2: Internal Bleaching Procedure
- Access cavity preparation to expose root canal filling
- Placement of protective barrier over root canal filling
- Application of bleaching agent within pulp chamber
- Temporary seal placement
- Multiple appointments as required for desired colour change
Phase 3: Finalisation and Monitoring
- Removal of bleaching agent
- Permanent restoration of access cavity
- Post-treatment shade assessment
- Follow-up review appointments to monitor colour stability
Clinical Outcome
Internal bleaching was performed to address discolouration of a root canal-treated tooth. The procedure involved placing bleaching agent within the tooth structure over multiple appointments.
Individual responses to internal bleaching vary significantly. Treatment outcomes cannot be guaranteed, and not all discoloured teeth respond equally to bleaching procedures. Some teeth may require multiple treatment cycles or may not achieve desired colour match with adjacent teeth. Colour relapse can occur over time, potentially requiring repeat treatment or alternative restoration such as veneers or crowns.
Frequently Asked Questions for Gisborne and Macedon Ranges Patients
How long does internal bleaching take?
Treatment duration varies based on individual response and degree of discolouration. Multiple appointments over several weeks are typically required. Some teeth respond within 2-3 treatment cycles, while others may require extended treatment or may not achieve desired results. Treatment is usually spaced 1-2 weeks apart to allow assessment of colour change progression.
What are alternatives to internal bleaching?
Alternatives include external bleaching (though often less effective on root-treated teeth), porcelain veneers, or full coverage crowns. Each option has specific indications, limitations, longevity considerations and cost implications. Not all teeth are suitable candidates for every treatment approach. The choice depends on extent of discolouration, tooth structure remaining, and individual aesthetic goals.
