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Devitalization of adjacent teeth following maxillary sinus floor augmentation: A retrospective radiographic study
Author(s) -
Beck Florian,
Lauterbrunner Nina,
Lettner Stefan,
Stavropoulos Andreas,
Ulm Christian,
Bertl Kristina
Publication year - 2018
Publication title -
clinical implant dentistry and related research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.338
H-Index - 85
eISSN - 1708-8208
pISSN - 1523-0899
DOI - 10.1111/cid.12632
Subject(s) - medicine , dentistry , radiography , root canal , maxillary sinus , sinus (botany) , retrospective cohort study , orthodontics , surgery , botany , biology , genus
Abstract Background Elevation of the schneiderian membrane, during maxillary sinus floor augmentation (MSFA) may theoretically result in devitalization of adjacent teeth, which are in a close spatial relationship to the sinus floor. Purpose To assess retrospectively the probability of devitalization of teeth adjacent to the osteotomy site after MSFA in a relatively large number of patients. Materials and Methods All MSFA procedures, performed at a university oral surgery clinic within a time period of 10 years, were assessed on the following eligibility criteria: (1) presence of vital teeth (ie, not root canal treated and no periapical radiolucency on a panoramic radiograph taken just after MSFA), (2) presence of a 3 to 12 months postoperative radiograph of the teeth adjacent to the osteotomy site displaying the root apices, and (3) complete medical records up to at least 12 months postoperatively. The radiographs of the different time points were compared and any changes in the radiographic status of the adjacent teeth (eg, development of a periapical lesion, root canal treatment, etc.) were recorded and the spatial relationship of the adjacent teeth to the maxillary sinus classified. Results Out of 684 MSFAs, 257 fulfilled the inclusion criteria and involved 357 adjacent teeth, of which 221 presented close to and/or intimate relationship to the sinus. In only a single case, tooth vitality might have been lost due to the procedure. Thus, the probability for tooth devitalization for teeth with close to and/or intimate spatial relationship to the sinus floor ranged from 0.45% to 0.7%. Conclusions Even for teeth with apices very close to and/or intimately related to the sinus tooth devitalization after MSFA is an extremely rare complication; that is, the probability of tooth devitalization after MSFA is ≤0.7%.