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. 2022 Apr 24;11(9):2393.
doi: 10.3390/jcm11092393.

Incidence, Size and Orientation of Maxillary Sinus Septa-A Retrospective Clinical Study

Laura Andreea Schiller  1   2 , Horia Mihail Barbu  3   4 , Stefania Andrada Iancu  4   5 , Silviu Brad  1
Affiliations

Incidence, Size and Orientation of Maxillary Sinus Septa-A Retrospective Clinical Study

Laura Andreea Schiller et al. J Clin Med. .

Abstract

Background: The purpose of this study is to analyze if there is any statistical correlation between the surgery's complexity (easy to difficult-depending on the anatomical conditions) and the patient's sex, type of edentulism, and left or right side of the maxilla.

Methods: Cone beam computed tomography records of 1192 maxillary sinuses were evaluated, measured, and statistically analyzed with respect to patient sex, type of edentulism, and left or right side, taking into consideration Wen's proposed sinus septum classification.

Results: Our research suggests that most sinus augmentation procedures in patients presenting antral septum fall into the Moderate A category (31.94%) and that there is not a correlation between the surgery's complexity (easy to difficult) and the patient's sex, type of edentulism and left or right side of the maxilla.

Conclusion: We suggest a minor modification to Wen's classification in view of the fact that our findings revealed a combination of medio-lateral and antero-posterior septa that we could not classify in one of the existing categories.

Keywords: maxillary sinus; sinus floor augmentation; sinus septa; sinus septum classification.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Radiological and clinical aspect of the maxillary sinus in partial edentulous patients before sinus floor augmentation. (a) CBCT sagittal view of a right maxilla with a long medio−lateral oriented septum. (b) Intraoperative view of the two windows technique. (c) CBCT sagittal view of a right maxilla with short medio−lateral oriented septa. (d) Intraoperative view of the osteotomy window.
Figure 2
Figure 2
Management of medio−lateral septa. (a) CBCT sagittal view of the left maxilla with a medio−lateral oriented septum. (b) One window with a modified design of the osteotomy. (c) CBCT sagittal view after maxillary sinus floor augmentation.
Figure 3
Figure 3
Combination of medio−lateral and antero−posterior septa (“Y” septum). (a) CBCT axial view of the left maxilla with simulation of implant placement. (b) CBCT axial view of the left maxilla revealing the “Y” septum. (c) CBCT sagittal view of the left maxilla with simulation of implant placement. (d) CBCT coronal view of the left maxilla with simulation of implant placement.
Figure 4
Figure 4
Management of antero-posterior septa. (a) CBCT coronal view of the left maxilla with a antero-posterior oriented septa. (b) CBCT coronal view after maxillary sinus floor augmentation with simultaneous dental implant placement (one window from lateral approach)—the implant prosthetically driven position did not require augmentation of the medial compartment of the sinus.
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