Station House Dental Care Blog

Signs You Need a Root Canal

Dr Sarah Metias BDS (University of Sheffield, UK) · MJDF RCS England · GDC 114267
Principal Dentist, Station House Dental Care · View profile →

Root canal treatment saves teeth that would otherwise need extraction. Recognising the signs early means simpler, more comfortable treatment.

Warning Signs

Severe toothache. Pain that lingers after hot/cold. Darkening of the tooth. Swelling or tenderness in nearby gums. A recurring pimple on the gum. If you recognise these, book a check-up or emergency appointment promptly.

What Root Canal Involves

Root canal treatment removes infected pulp, cleans the canals and seals the tooth. A crown is usually placed afterwards. Modern root canal is comfortable — most patients report minimal discomfort.

A Note from Dr Sarah Metias, Principal Dentist

The symptom I always ask about first is unprovoked pain — pain that starts without any trigger, particularly at night. That pattern strongly suggests pulpitis that won't resolve without intervention. In our emergency appointments at Station House, I regularly see patients who've been managing dental pain for weeks with ibuprofen, hoping it will pass. It rarely does once the nerve is involved. If you have lingering sensitivity to cold that takes more than 30 seconds to settle, please don't wait — early treatment saves the tooth and is far less complex than addressing an abscess.

Key Statistics

Metric Figure Source
UK adults experiencing dental pulp infection symptoms5%annually — NHS data
Root canal treatment success rate (single-rooted teeth)94%10-year data, peer-reviewed
Root canal success rate (multi-rooted teeth)85–90%10-year systematic review data
Patients who delay treatment due to cost or fear34%leading to more complex intervention
Cost comparison: root canal + crown vs extraction + implantRoot canal 40–60% cheaperwhole-life cost analysis

Clinical Evidence & References

SM
Clinically Reviewed by Dr Sarah Metias
BDS Sheffield, MJDF RCS England, GDC 114267
Dr Metias is the Principal Dentist at Station House Dental Care with 19 years of clinical experience. She holds the Membership of the Joint Dental Faculties from the Royal College of Surgeons — a postgraduate qualification from the Royal College of Surgeons of England. View full profile →
Published: March 2026 · Last reviewed: April 2026

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Editorial policy: All clinical content on this site is written or reviewed by a GDC-registered dentist with relevant postgraduate qualifications. We update clinical guidance when new evidence emerges. This page was last reviewed in April 2026. For personalised advice, book a consultation — online information cannot replace a clinical examination.