Related Experiment Video
Updated: Feb 23, 2026
An Effective Manual Deboning Method To Prepare Intact Mouse Nasal Tissue With Preserved Anatomical Organization
Published on: August 10, 2013
Mechanical characteristics of the maxillary sinus Schneiderian membrane ex vivo
Angel Insua1,2, Florencio Monje-Gil3, Lucía García-Caballero4
1Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA. ainsua@umich.edu.
Objectives:
It has been speculated that certain Schneiderian membrane thickness (SMT) might be more prone to perforation. This investigation was aimed at studying the mechanical characteristics of the Schneiderian membrane under one- and two-dimensional tests and their correlation to the histological SMT in human samples.
Material And Methods:
Sixteen Schneiderian membranes were collected from 11 cadaver heads treated with Thiel's embalming method. The samples were processed and analyzed clinically and histologically. One-dimensional maximum elongation until perforation and two-dimensional resistance to ball penetration were performed after the biopsy. Data was analyzed by using the Wilcoxon rank test and the Spearman's rank correlation.
Results:
The histological SMT was 1.36 ± 0.42 mm, whereas the clinical thickness was 0.27 ± 0.21 mm, yielding statistical significance (p = 0.000). The resistance under ball penetration was 0.59 ± 0.43 N and the mean maximum elongation in the one-dimension test 11.19 ± 7.14 mm. Expressed in percentage, the mean stretch was 241.36 ± 227.97% (range 31.5 up to 947%). A weak positive correlation was found between the ball penetration test and the SMT (r = 0.10, p = 0.711), while a weak negative correlation was found between stretching test and the SMT (r = -0.021, p = 0.94).
Conclusions:
Mechanical tests seem to indicate that SMT might not significantly predispose to Schneiderian membrane perforation. Hence, other anatomical and operator's factors should be considered of surpassing importance.
Clinical Relevance:
Thinner SM might be more prone to perforation when detaching it from the maxillary sinus antrum; however, a thick membrane is not prevented to tear, as their resistance under elastic forces is not higher than thinner ones.
Insights
Schneiderian membrane thickness (SMT) does not significantly predict perforation risk during sinus procedures. Other factors like anatomy and surgical technique are more critical for preventing tears.
Area of Science:
- Oral and Maxillofacial Surgery
- Anatomy
- Biomaterials Science
Background:
- The Schneiderian membrane (SM) is crucial in sinus lift procedures.
- Speculation exists that specific Schneiderian membrane thickness (SMT) may increase perforation risk.
Purpose of the Study:
- To investigate the mechanical properties of the Schneiderian membrane.
- To correlate mechanical characteristics with histological SMT in human cadaver samples.
Main Methods:
- Mechanical testing (one- and two-dimensional) on 16 human cadaver Schneiderian membranes.
- Histological analysis of membrane thickness.
- Statistical analysis using Wilcoxon rank and Spearman's rank correlation tests.
Main Results:
- Histological SMT averaged 1.36 mm (clinical 0.27 mm).
- Mean resistance to ball penetration was 0.59 N; mean maximum elongation was 11.19 mm (241.36%).
- Weak correlations were observed between SMT and mechanical resistance (r=0.10) and elongation (r=-0.021).
Conclusions:
- Schneiderian membrane thickness (SMT) does not appear to be a significant predictor of perforation.
- Mechanical properties suggest thinner membranes may be more prone to tearing, but thicker membranes offer no guaranteed resistance.
- Anatomical variations and surgical technique are likely more important factors in preventing Schneiderian membrane perforation.
More Related Videos
07:16Author Spotlight: Development of a Novel Finite Element Analysis Model for Improved Orthognathic Surgical Techniques
Published on: October 20, 2023
07:09In situ Compressive Loading and Correlative Noninvasive Imaging of the Bone-periodontal Ligament-tooth Fibrous Joint
Published on: March 7, 2014