Abstract
Maxillary molars with interradicular loss of periodontal tissue have an increased risk of additional attachment loss with an impaired long-term prognosis. Since accurate clinical analysis of furcation involvement is not feasible due to limited access, morphological variations and measurement errors, additional diagnostics, e.g., with cone-beam computed tomography, may be required. Surgical treatment options have graduated from a less invasive approach, i.e., keeping as much periodontal attachment as possible, to a more invasive approach: (1) open flap debridement with/without gingivectomy or apically repositioned flap and/or tunnelling; (2) root separation; (3) amputation/trisection of a root (with/without root separation or tunnel preparation); (4) amputation/trisection of two roots; and (5) extraction of the entire tooth. Tunnelling is indicated when the degree of root separation allows for opening of the interradicular region. Alternatively, root separation is performed particularly in root-canal treated teeth with reduced coronal tooth substance requiring crown restorations. As soon as the attachment of one or two roots in maxillary molars is severely reduced, root removal is indicated and performed either as amputation or trisection including the corresponding part of the clinical crown. While the indication for regenerative measures in maxillary molars with furcation involvement is very limited, extraction and replacement with implants is restricted, particularly in sites requiring complex alveolar ridge augmentation and sinus elevation. A systematic approach for decision making in furcation-involved maxillary molars is described in this overview, including what constitutes accurate diagnosis and what indications there are for the different surgical periodontal treatment options.
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Abbreviations
- FI:
-
Furcation involvement
- PPD:
-
Probing pocket depth
- PAL:
-
Probing attachment level
- Sc&Rp:
-
Scaling and root planning
- RCT:
-
Root canal treatment
- SPT:
-
Supportive periodontal treatment
- FDP:
-
Fixed dental prosthesis
- RDP:
-
Removable dental prosthesis
- CBCT:
-
Cone-beam computed tomography
- GTR:
-
Guided tissue regeneration
- EMD:
-
Enamel matrix derivative proteins
- BoP:
-
Bleeding on probing
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Acknowledgement
The authors would like to thank Dr. Leonard Büttel for performing the reconstructive treatment of the maxillary molars presented in Fig. 4b.
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The authors declare that they have no conflict of interest.
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Walter, C., Weiger, R. & Zitzmann, N.U. Periodontal surgery in furcation-involved maxillary molars revisited—an introduction of guidelines for comprehensive treatment. Clin Oral Invest 15, 9–20 (2011). https://doi.org/10.1007/s00784-010-0431-9
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DOI: https://doi.org/10.1007/s00784-010-0431-9