What does “Endodontic-periodontal lesion” mean?
An endodontic-periodontal lesion involves both pulp or root canal problems inside a tooth and damage to periodontal tissues outside it. The infection pathway and any tooth damage are distinguished to plan the sequence of root canal and periodontal treatment.
Connections between the inside and outside of a tooth
Root canals and periodontal tissues can affect each other through pathways such as the root tip and accessory canals. Deep pockets, pus drainage, or radiographic changes around roots may be seen, but it can be difficult to establish which problem came first from symptoms alone. Previous treatment and the course of onset are also reviewed.
Important diagnostic examinations
Pulp responses, pocket distribution, attachment loss, and radiographic findings are compared. Cracks, root fractures, perforations, or other damage to the tooth change treatment options and prognosis. A deep pocket at one site does not always have the same cause, so the necessary findings are considered together.
Why treatment is staged
Acute infection may need treatment first. Confirmed root canal infection requires treatment and assessment of its course. Remaining periodontal problems are then treated, or both areas are planned together. Sequence varies with the cause and possibility of preservation; one regimen is not applied to every case.
Frequently Asked Questions
Does root canal treatment eliminate all gum problems too?
Changes originating in the canal may improve, but separate periodontitis or root damage may require further treatment. Reassessment after treatment distinguishes these.
Does a combined lesion always mean extraction?
No. Root damage, remaining support, infection, and restorability are assessed together to determine whether preservation is possible.
Questions about an endodontic-periodontal lesion
Learn what the term means and how it relates to your dental condition.
- Sufficient understanding
Have both pulp and periodontal conditions been checked?
Explanation and evidenceAsk for the findings from both areas to be connected rather than establishing the cause from one side alone.
SDCEP · Other Periodontal Conditions - A choice suited to your condition
Is there root damage, and when will reassessment occur?
Explanation and evidenceCheck conditions that alter prognosis, such as cracks or perforations, and define what will be reviewed after each treatment stage.
SDCEP · Combined Endo-Perio Lesions
Further reading and references
Further reading
References
- SDCEP · Other Periodontal Conditionsperiodontalcare.sdcep.org.uk (opens in a new tab)
- SDCEP · Combined Endo-Perio Lesionsperiodontalcare.sdcep.org.uk (opens in a new tab)
- American Association of Endodontists · Cracked Teethaae.org (opens in a new tab)
- SDCEP · Acute Periodontal Conditionsperiodontalcare.sdcep.org.uk (opens in a new tab)

