What Root Canal Retreatment Actually Is
Root canal retreatment is the process of removing the filling material from a tooth that has already had a root canal treatment, disinfecting the canal system again, and refilling it. It is not the same as a first time procedure.
The canals have already been shaped and filled, so the challenge is different: the dentist has to safely remove old material, find whatever was missed the first time, and treat it without weakening the tooth further.
Why a Root Canal Fails in the First Place
Signs You May Need Retreatment
A failing root canal does not always hurt straight away. Some patients notice nothing until a routine X ray shows a problem. Watch for:
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Returning pain or tenderness when biting on the tooth
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Swelling or a small pimple like bump on the gum near the tooth
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A tooth that feels different from the surrounding teeth
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New sensitivity or a dull ache that comes and goes
If you are dealing with sudden or severe discomfort, our guidance on how to stop severe tooth pain at night can help while you arrange an assessment.
The Two Approaches to Retreatment
Not every failed root canal is treated the same way. The right approach depends on where the problem sits.
Non Surgical Retreatment
This is the standard and most common approach, sometimes called orthograde retreatment. The dentist works through the top of the tooth, exactly as in the original procedure. It is chosen when the infection is contained inside the canal system and the issue is something like a missed canal, a broken instrument, a perforation, or a partially completed treatment.
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Surgical Retreatment
When the source of the problem sits outside the canal system, or when working through the top of the tooth is not feasible, surgery becomes the better route. This is known as apical surgery or apicectomy. It is used for cysts, foreign material beyond the root tip, extra canal infection, or a blockage that cannot be bypassed.
Why Choose Sola Dental for Root Canal Retreatment
Dental Surgeon - Aileen Loo
Retreatment is one of the more technically demanding procedures in dentistry, and outcomes improve significantly when it is done under magnification by an experienced hand.
At Sola Dental, every endodontic case is carried out under a dental operating microscope, giving us the visibility to find missed canals, remove obstructions, and seal the tooth accurately.
