Is the pneumatisation of the maxillary sinus following tooth loss a reality? A retrospective analysis using cone beam computed tomography and a customised software program.

Schriber, Martina; Bornstein, Michael M; Suter, Valérie (2019). Is the pneumatisation of the maxillary sinus following tooth loss a reality? A retrospective analysis using cone beam computed tomography and a customised software program. Clinical oral investigations, 23(3), pp. 1349-1358. Springer-Verlag 10.1007/s00784-018-2552-5

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OBJECTIVES To compare the dimensions of maxillary sinuses in dentate and edentulous patients using cone beam computed tomography (CBCT) scans and a customised software program. MATERIALS AND METHODS This study comprised CBCTs of 50 dentate and 50 edentulous posterior maxillae. The observers drew two planar curves in all included sinuses in the frontal, sagittal and axial planes of the respective CBCT scans. The volume (mm), surface (mm) and maximum diameter (mm) of the sinuses were calculated using a custom-made software program. The variables analysed were the influence of the state of dentition on sinus dimensions (primary outcome) and the influence of age, gender and side on sinus dimensions; the time needed for analysis; and the intra- and inter-observer agreement (secondary outcomes). RESULTS There was no difference in sinus dimensions between dentate and edentulous posterior maxillae. Males had significantly (p < 0.05) greater volume, surface and diameter than females. Strong intra- and inter-observer agreement (Pearson correlation) was found for the calculated sinus dimensions. The time needed per analysis was less than 4 min for both observers. CONCLUSIONS Being edentulous did not have an impact on the sinus dimensions, suggesting that there is no ongoing pneumatisation in the sinus after tooth loss. Males had larger sinuses than females in a population older than 30 years. CLINICAL RELEVANCE Following tooth loss in the posterior maxilla, vertical bone height is primarily lost due to resorption of the alveolar crest, and not due to pneumatisation of the maxillary sinus. The customised software program was found to be user-friendly and efficient.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Oral Surgery and Stomatology

UniBE Contributor:

Schriber, Martina and Suter, Valérie

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1432-6981

Publisher:

Springer-Verlag

Language:

English

Submitter:

Caroline Balz

Date Deposited:

28 Aug 2019 09:02

Last Modified:

23 Oct 2019 07:26

Publisher DOI:

10.1007/s00784-018-2552-5

PubMed ID:

30014166

Uncontrolled Keywords:

Cone beam computed tomography Dentate posterior maxilla Edentulous posterior maxilla Maxillary sinus Maxillary sinus volume Pneumatisation

BORIS DOI:

10.7892/boris.132542

URI:

https://boris.unibe.ch/id/eprint/132542

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