The influence of different forms of sinus membrane perforation on the prevalence of postoperative complications in lateral window sinus floor elevation: A retrospective study

2021 ◽  
Author(s):  
Stefan Krennmair ◽  
Michael Weinländer ◽  
Thomas Forstner ◽  
Michael Malek ◽  
Gerald Krennmair ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Postoperative Complications ◽  
Sinus Floor Elevation ◽  
Membrane Perforation ◽  
Sinus Floor ◽  
Sinus Membrane

The Incidence of Maxillary Sinus Membrane Perforation During Endoscopically Assessed Crestal Sinus Floor Elevation: A Pilot Study

2012 ◽  
Vol 38 (4) ◽  
pp. 345-359 ◽  
Author(s):  
Antoanela Garbacea ◽  
Jaime L Lozada ◽  
Christopher A. Church ◽  
Aladdin J. Al-Ardah ◽  
Kristin A. Seiberling ◽  
...  
Keyword(s):  
Pilot Study ◽  
Maxillary Sinus ◽  
Surgical Procedure ◽  
Surgical Techniques ◽  
Graft Material ◽  
Sinus Floor Elevation ◽  
Membrane Perforation ◽  
Sinus Floor ◽  
Sinus Membrane Elevation ◽  
Sinus Membrane

Transcrestal sinus membrane elevation is a surgical procedure performed to increase the bone volume in the maxillary sinus cavity. Because of visual limitations, the potential for maxillary sinus membrane perforations may be greater than with the lateral approach technique. The aim of this study was to macroscopically investigate ex vivo the occurrence of sinus membrane perforation during surgery using 3 transcrestal sinus floor elevation methods. Twenty fresh human cadaver heads, with 40 intact sinuses, were used for simultaneous sinus membrane elevation, placement of graft material, and dental implants. Real-time sinus endoscopy, periapical digital radiographs, and cone-beam computerized tomography (CBCT) images were subsequently used to evaluate the outcome of each surgical procedure. Perforation rates for each of the 3 techniques were then compared using a significance level of P < .05. No statistically significant differences in the perforation rate (P = .79) were found among the 3 surgical techniques. Although the sinus endoscope noted a higher frequency of perforations at the time of implant placement as compared with instrumentation or graft insertion, the difference was not statistically significant (P = .04). The CBCT readings were judged to be more accurate for identifying evidence of sinus perforations than the periapical radiographs when compared with the direct visualization with the endoscope. This pilot study demonstrated that a sinus membrane perforation can occur at any time during the sinus lift procedure, independent of the surgical method used.

scholarly journals PRF-Solution in Large Sinus Membrane Perforation with Simultaneous Implant Placement-Micro CT and Histological Analysis

Membranes ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 438
Author(s):  
Horia Mihail Barbu ◽  
Stefania Andrada Iancu ◽  
Violeta Hancu ◽  
Daniel Referendaru ◽  
Joseph Nissan ◽  
...  
Keyword(s):  
Maxillary Sinus ◽  
Micro Ct ◽  
Implant Placement ◽  
Membrane Perforation ◽  
Sinus Floor Augmentation ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
The Mean ◽  
Maxillary Sinus Floor Augmentation ◽  
Sinus Membrane

Background: The purpose of the study was to analyze the efficacy of platelet-rich fibrin (PRF) as a single augmentation material for complicated cases of maxillary sinus floor elevation, resulting from membrane perforation or previous infections. Methods: Implant insertion in the posterior region of the maxilla was simultaneously performed with maxillary sinus floor augmentation. Schneiderian membrane elevation can be accompanied by extremely serious sinus membrane perforation, due to accidental tearing or intended incision for mucocele removal. PRFs were placed in the sinus cavity both for membrane sealing and sinus floor grafting. Radiological, histological and micro-CT analyses were performed. Implant survival was assessed every 6 months for 1 to 4 years, with a mean follow up of 1.8 years, after prosthetic loading. Radiological examinations were performed on CBCT at 9 and 12 and 36 months postoperatively and revealed improved degrees of radiopacity. Results: 19 implants were simultaneously placed in the course of nine maxillary sinus floor augmentation surgeries, with successful outcomes in terms of bone grafting and implant integration. New bone formation was evidenced 12 months postoperatively on radiological examination, micro-CT analysis, and histological analysis of a harvested bone segment from the augmented maxillary sinus. The mean gain in bone height of the sinus floor augmentation was 6.43 mm, with a maximum of 9 mm. The mean amount of vital bone obtained from histologic assessment was 52.30%, while bone volume/tissue volume ratio in micro-CT 3D had a mean of 50.32%. Conclusions: PRF may be considered as an alternative treatment for a single surgery of sinus augmentation with simultaneous implant placement, even in complicated cases with significant sinus membrane tearing.

scholarly journals Floating septum technique: easy and safe method maxillary sinus septa in sinus lifting procedure

2019 ◽  
Vol 41 (1) ◽  
Author(s):  
Junho Jung ◽  
Bo-Yeon Hwang ◽  
Byung-Soo Kim ◽  
Jung-Woo Lee
Keyword(s):  
Maxillary Sinus ◽  
Maxillary Sinusitis ◽  
Sinus Lift ◽  
Sinus Floor Elevation ◽  
Schneiderian Membrane ◽  
Safe Method ◽  
Membrane Perforation ◽  
Sinus Lifting ◽  
Maxillary Sinus Septa ◽  
Sinus Floor

Abstract Background The presence of septa increases the risk of Schneiderian membrane perforation during sinus lift procedure, and therefore, the chance of graft failure increases. We present a safe method of managing septa and, in particular, overcoming small and palatally located septa. Methods After the elevation of the flap and the creation of a small bony window positioned anterior to the septum, the Schneiderian membrane is lifted carefully. A thin and narrow osteotome is then placed at the indentation created at the base of the septum, and mobilization of the septum is achieved by gentle malleting. The membrane is again carefully lifted up behind the septum. Results There was one small membrane perforation case in all 16 cases, and none of these patients showed postoperative complications such as implant failure, infection, or maxillary sinusitis. Conclusions This technique is useful for overcoming the problem of maxillary sinus septa hindering the sinus floor elevation procedure, leading to fewer complications.

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