Furcation Regeneration — ORE Part 1 MCQ

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HardPeriodontologyFurcation RegenerationORE Part 1

A 40-year-old patient has a persistent buccal Class II furcation defect affecting a mandibular first molar despite appropriate non-surgical periodontal therapy and good plaque control. Which surgical approach is most appropriate?

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Correct answer: D — Regenerative surgery using a barrier membrane, with or without graft material

Explanation lettering: E = shown as A · A = shown as D · D = shown as E

A is correct. A buccal Class II furcation on a mandibular molar is an established indication for regenerative periodontal surgery. Guided tissue regeneration with a barrier membrane, used alone or with graft material where indicated by defect morphology, aims to achieve new attachment and furcation fill. Systematic-review evidence shows better furcation-depth, attachment and probing outcomes than open-flap debridement alone. B and C are resective approaches that sacrifice root/tooth structure and are not the preferred treatment for a potentially regenerable Class II mandibular furcation. D may improve cleansability in selected through-and-through furcations, not a blind-ended Class II lesion. E is an exceptional salvage procedure and is not routine management of periodontal furcation involvement.

Reference: Jepsen S, Eberhard J, Herrera D, Needleman I. A systematic review of guided tissue regeneration for periodontal furcation defects. Journal of Clinical Periodontology. 2003. https://pubmed.ncbi.nlm.nih.gov/12787212/