Volume 21, Issue 1 pp. 66-72
ORIGINAL ARTICLE

Potential risk factors for maxillary sinus membrane perforation and treatment outcome analysis

Saša Marin DDS

Corresponding Author

Saša Marin DDS

Department of Oral Surgery, Faculty of Medicine, University of Banja Luka, Banja Luka, Bosnia and Herzegovina

Correspondence

Saša Marin, Division of Oral Surgery and Orthodontics, Department of Dental Medicine and Oral Health, Medical University of Graz, Billrothgasse 4, A-8010 Graz, Austria.

Email: [email protected]

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Barbara Kirnbauer DDS

Barbara Kirnbauer DDS

Division of Oral Surgery and Orthodontics, Department of Dental Medicine and Oral Health, Medical University of Graz, Graz, Austria

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Petra Rugani DDS

Petra Rugani DDS

Division of Oral Surgery and Orthodontics, Department of Dental Medicine and Oral Health, Medical University of Graz, Graz, Austria

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Michael Payer MD, DDS, PhD

Michael Payer MD, DDS, PhD

Division of Oral Surgery and Orthodontics, Department of Dental Medicine and Oral Health, Medical University of Graz, Graz, Austria

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Norbert Jakse MD, DDS, PhD

Norbert Jakse MD, DDS, PhD

Division of Oral Surgery and Orthodontics, Department of Dental Medicine and Oral Health, Medical University of Graz, Graz, Austria

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First published: 26 November 2018
Citations: 44

Abstract

Background

Most common complication of sinus floor elevation (SFE) is sinus membrane perforation (SMP).

Purpose

To investigate the correlation between SMP and potential risk factors and to evaluate SMP treatment outcomes.

Materials and Methods

This study included patients who had undergone a SFE at Division of Oral Surgery and Orthodontics, Medical University of Graz from 2013 to 2017. Analysis of patients' records and CBCT focused on patient-related risk factors (sinus contours, thickness of membrane and lateral sinus wall, interfering septa, crossing vessels, former oroantral communication) and intervention-related risk factors (surgical approach, sides, number of tooth units, and sites). The outcome of SMP treatment was analyzed in the recalls.

Results

In all, 121 patients underwent 137 SFE. There were 19 cases of SMP (13.9%). Two significant factors were identified: maxillary sinus contours (P = .001) and thickness of the sinus membrane (P = .005). The sinus membrane perforation rate was highest in narrow tapered sinus contours and when the sinus membrane was thinner than 1 mm. Among 19 cases with SMP, no complications were seen upon recall.

Conclusions

Maxillary sinus contours and sinus membrane thickness seem to be relevant factors for SMP. Sinus membrane perforations were successfully treated by coverage with collagen membrane.

CONFLICT OF INTEREST

There is no conflict of interest in this study and it did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

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