Non-Cochrane · aetiology · PM42492462

Incidence and Associated Factors of Schneiderian Membrane Perforation in Maxillary Sinus Floor Elevation: A Meta-Analysis.

Liu Yanmei, Zhou Qiuyu, Li Enhong, et al. · International dental journal · 2026 · PubMed · doi:10.1016/j.identj.2026.109756

Findings

Population Patients undergoing maxillary sinus floor elevation (MSFE)

24 findings

MSFE (single-arm pooled incidence)None (pooled proportion)Intraoperative Schneiderian membrane perforation (SMP) incidence, surgery level
Intraoperative · Maxillary sinus floor elevation surgery (lateral window or transcrestal approach) · Surgical approach: Lateral window
Incidence (proportion) 0.20 [0.15, 0.25]
GRADE not reported
19 studies
MSFE (single-arm pooled incidence)None (pooled proportion)Intraoperative Schneiderian membrane perforation (SMP) incidence, surgery level
Intraoperative · Maxillary sinus floor elevation surgery (lateral window or transcrestal approach) · Timing of implant placement: Staged only
Incidence (proportion) 0.18 [0.10, 0.30]
GRADE not reported
Studies not reported
MSFE (single-arm pooled incidence)None (pooled proportion)Intraoperative Schneiderian membrane perforation (SMP) incidence, patient level
Intraoperative · Maxillary sinus floor elevation surgery (lateral window or transcrestal approach) · Overall (all studies)
Incidence (proportion) 0.19 [0.14, 0.24]
Very low
Downgraded: risk of bias, inconsistency
19 studies
MSFE (single-arm pooled incidence)None (pooled proportion)Intraoperative Schneiderian membrane perforation (SMP) incidence, surgery level
Intraoperative · Maxillary sinus floor elevation surgery (lateral window or transcrestal approach) · Timing of implant placement: Fully simultaneous
Incidence (proportion) 0.20 [0.09, 0.33]
GRADE not reported
Studies not reported
MSFE (single-arm pooled incidence)None (pooled proportion)Intraoperative Schneiderian membrane perforation (SMP) incidence, surgery level
Intraoperative · Maxillary sinus floor elevation surgery (lateral window or transcrestal approach) · Timing of implant placement: Partial simultaneous
Incidence (proportion) 0.18 [0.14, 0.23]
GRADE not reported
Studies not reported
MSFE (single-arm pooled incidence)None (pooled proportion)Intraoperative Schneiderian membrane perforation (SMP) incidence, surgery level
Intraoperative · Maxillary sinus floor elevation surgery (lateral window or transcrestal approach) · Overall (all studies)
Incidence (proportion) 0.19 [0.15, 0.23]
Very low
Downgraded: risk of bias, inconsistency
22 studies · 5101 participants
MSFE by transcrestal approachNone (single-arm incidence)Intraoperative Schneiderian membrane perforation, surgery-level incidence
Intraoperative · Surgical approach: transcrestal
Incidence (proportion) 0.13 [0.06, 0.22]
GRADE not reported
3 studies
Sinus septa presentSinus septa absentIntraoperative SMP
Intraoperative · Maxillary sinus floor elevation surgery (lateral window or transcrestal approach)
OR 3.56 [1.82, 6.96]
Low
Downgraded: risk of bias, inconsistency
12 studies
MSFE by transcrestal approachNone (single-arm incidence)Intraoperative Schneiderian membrane perforation, patient-level incidence
Intraoperative · Surgical approach: transcrestal
Incidence (proportion) 0.14 [0.07, 0.22]
GRADE not reported
5 studies
MSFE by lateral window approachNone (single-arm incidence)Intraoperative Schneiderian membrane perforation, patient-level incidence
Intraoperative · Surgical approach: lateral window
Incidence (proportion) 0.20 [0.16, 0.26]
GRADE not reported
14 studies
SmokingNon-smokingIntraoperative SMP
Intraoperative · Maxillary sinus floor elevation surgery (lateral window or transcrestal approach)
OR 2.57 [1.47, 4.47]
Low
Downgraded: risk of bias, inconsistency
13 studies
Thick membrane (prespecified threshold)Membrane below thresholdIntraoperative SMP
Intraoperative · Maxillary sinus floor elevation surgery (lateral window or transcrestal approach)
Not statistically significant; high heterogeneity; numeric estimate not in the text (Supplementary Figure S1B not readable); GRADE table lists 7 studies for membrane thickness
Very low
Downgraded: risk of bias, imprecision, inconsistency
Studies not reported
Greater Schneiderian membrane thickness (continuous)Lower membrane thicknessIntraoperative SMP
Intraoperative · Maxillary sinus floor elevation surgery (lateral window or transcrestal approach)
Not statistically significant; high heterogeneity; numeric estimate not in the text (Supplementary Figure S1A not readable); GRADE table lists 7 studies for membrane thickness
Very low
Downgraded: risk of bias, imprecision, inconsistency
Studies not reported
MSFE with fully simultaneous implant placementNone (single-arm incidence)Intraoperative Schneiderian membrane perforation, patient-level incidence
Intraoperative · Timing of implant placement: fully simultaneous
Incidence (proportion) 0.16 [0.07, 0.28]
GRADE not reported
4 studies
MSFE with partial simultaneous implant placementNone (single-arm incidence)Intraoperative Schneiderian membrane perforation, patient-level incidence
Intraoperative · Timing of implant placement: partial simultaneous
Incidence (proportion) 0.19 [0.13, 0.26]
GRADE not reported
11 studies
Greater lateral wall thicknessLower lateral wall thicknessIntraoperative SMP
Intraoperative · Maxillary sinus floor elevation surgery (lateral window or transcrestal approach)
Not statistically significant; high heterogeneity; numeric estimate not in the text (Supplementary Figure S1C not readable)
Very low
Downgraded: risk of bias, imprecision, inconsistency
5 studies
MSFE with staged only implant placementNone (single-arm incidence)Intraoperative Schneiderian membrane perforation, patient-level incidence
Intraoperative · Timing of implant placement: staged only
Incidence (proportion) 0.22 [0.12, 0.34]
GRADE not reported
4 studies
Residual ridge height (continuous), perforated vs non-perforated casesNon-perforated casesIntraoperative SMP (residual ridge height difference)
Intraoperative · Maxillary sinus floor elevation surgery (lateral window or transcrestal approach)
SMD -0.46 [-0.80, -0.12]
Low
Downgraded: risk of bias, inconsistency
12 studies
Male sexFemale sexIntraoperative SMP
Intraoperative · Maxillary sinus floor elevation surgery (lateral window or transcrestal approach)
Not statistically significant; moderate to high heterogeneity; numeric estimate not in the text (Supplementary Figure S1E not readable)
Low
Downgraded: risk of bias, imprecision
9 studies
Older ageYounger ageIntraoperative SMP
Intraoperative · Maxillary sinus floor elevation surgery (lateral window or transcrestal approach)
Not statistically significant; moderate to high heterogeneity; numeric estimate not in the text (Supplementary Figure S1F not readable)
Very low
Downgraded: risk of bias, imprecision, inconsistency
4 studies
Diabetes mellitusNo diabetes mellitusIntraoperative SMP
Intraoperative · Maxillary sinus floor elevation surgery (lateral window or transcrestal approach)
Not statistically significant; moderate to high heterogeneity; numeric estimate not in the text (Supplementary Figure S1G not readable)
Low
Downgraded: risk of bias, imprecision
4 studies
Simultaneous implant placementStaged implant placementIntraoperative SMP
Intraoperative · Maxillary sinus floor elevation surgery (lateral window or transcrestal approach)
OR 1.87 [0.99, 3.52]
Low
Downgraded: risk of bias, imprecision
4 studies
Surgical side (one side)Other sideIntraoperative SMP
Intraoperative · Maxillary sinus floor elevation surgery (lateral window or transcrestal approach)
Not statistically significant; no numeric estimate reported
Low
Downgraded: risk of bias, imprecision
4 studies
Edentulous region/type (exposure category)Reference region/typeIntraoperative SMP
Intraoperative · Maxillary sinus floor elevation surgery (lateral window or transcrestal approach)
Not statistically significant; no numeric estimate reported
Very low
Downgraded: risk of bias, imprecision, inconsistency
5 studies

Included primary studies 26

Open in Studies
StudyYearAlso included byOutcomes it informs hereTrial data
Mazor 2024
Maxillary sinus membrane perforation rate utilizing osseodensification-mediated transcrestal sinus floor elevation: A multicenter clinical…
PMID:39187444
20241 other reviewnot statednot extracted yet
Basma 2021
Association between lateral wall thickness and sinus membrane perforation during lateral sinus elevation: A retrospective study.
PMID:34006073
2021this review onlynot statednot extracted yet
Boyacigil 2021
The effect of residual bone height and membrane thickness on sinus membrane perforation in crestal sinus grafting: A prospective clinical…
PMID:32600745
2021this review onlynot statednot extracted yet
Gao 2023
Effectiveness and complications of transcrestal sinus floor elevation using the cushioned grind-out technique: A retrospective cohort…
PMID:37271935
2023this review onlynot statednot extracted yet
Hernandez 2008
Prevalence and management of Schneiderian membrane perforations during sinus-lift procedures.
PMID:17961185
2008this review onlynot statednot extracted yet
Irinakis 2017
Complications During Maxillary Sinus Augmentation Associated with Interfering Septa: A New Classification of Septa.
PMID:28458730
2017this review onlynot statednot extracted yet
Kasabah 2003
Can we predict maxillary sinus mucosa perforation?
PMID:12747535
2003this review onlynot statednot extracted yet
Krennmair 2020
Risk Factor Analysis Affecting Sinus Membrane Perforation During Lateral Window Maxillary Sinus Elevation Surgery.
PMID:32724933
2020this review onlynot statednot extracted yet
Li 2024
Effect of Sinus Membrane Thickness on Membrane Perforation and Bone Augmentation in Transcrestal Sinus Floor Elevation: A Retrospective…
PMID:37819853
2024this review onlynot statednot extracted yet
Lin 2016
The influence of sinus membrane thickness upon membrane perforation during lateral window sinus augmentation.
PMID:26076580
2016this review onlynot statednot extracted yet
Lum 2017
Association Between Sinus Membrane Thickness and Membrane Perforation in Lateral Window Sinus Augmentation: A Retrospective Study.
PMID:28398119
2017this review onlynot statednot extracted yet
Marin 2019
Potential risk factors for maxillary sinus membrane perforation and treatment outcome analysis.
PMID:30475442
2019this review onlynot statednot extracted yet
Merli 2016
A minimally invasive technique for lateral maxillary sinus floor elevation: a Bayesian network study.
PMID:25382821
2016this review onlynot statednot extracted yet
Monje 2016
Incidence of and Factors Associated with Sinus Membrane Perforation During Maxillary Sinus Augmentation Using the Reamer Drilling…
PMID:27333013
2016this review onlynot statednot extracted yet
Nemati 2023
Which factors affect the risk of membrane perforation in lateral window maxillary sinus elevation? A prospective cohort study.
PMID:37423790
2023this review onlynot statednot extracted yet
Park 2019
The clinical and radiographic outcomes of Schneiderian membrane perforation without repair in sinus elevation surgery.
PMID:30950206
2019this review onlynot statednot extracted yet
Pizzini 2021
The impact of anatomic, patient and surgical factors on membrane perforation during lateral wall sinus floor elevation.
PMID:33314302
2021this review onlynot statednot extracted yet
Prajapati 2023
Risk factors and longitudinal regenerative outcomes of sinus membrane perforation during lateral window sinus floor elevation: A…
PMID:36748281
2023this review onlynot statednot extracted yet
Rapani 2016
Schneider membrane thickness classification evaluated by cone-beam computed tomography and its importance in the predictability of…
PMID:27577868
2016this review onlynot statednot extracted yet
Schwarz 2015
Risk Factors of Membrane Perforation and Postoperative Complications in Sinus Floor Elevation Surgery: Review of 407 Augmentation…
PMID:25921824
2015this review onlynot statednot extracted yet
Shao 2021
Risk factors for sinus membrane perforation during lateral window maxillary sinus floor elevation surgery: A retrospective study.
PMID:34750940
2021this review onlynot statednot extracted yet
Thomas 2014
Perforation of the sinus membrane during sinus floor elevation: a retrospective study of frequency and possible risk factors.
PMID:24818213
2014this review onlynot statednot extracted yet
Tukel 2018
Risk factors and clinical outcomes of sinus membrane perforation during lateral window sinus lifting: analysis of 120 patients.
PMID:29655818
2018this review onlynot statednot extracted yet
Wen 2015
The influence of sinus membrane thickness upon membrane perforation during transcrestal sinus lift procedure.
PMID:24891094
2015this review onlynot statednot extracted yet
Yilmaz 2012
Are gingival phenotype, residual ridge height, and membrane thickness critical for the perforation of maxillary sinus?
PMID:21627460
2012this review onlynot statednot extracted yet
Zhou 2021
Responses of Sinus Membrane and Antral Pseudocyst Following Lateral Window Sinus Augmentation with Bone Grafting: A Retrospective Study.
PMID:34698713
2021this review onlynot statednot extracted yet

Overlap with other reviews

Reviews that include the same primary studies are not independent evidence. Shared counts match studies by PMID, DOI or NCT, and otherwise by author and year (a probable match). Only the non-Cochrane dental reviews have study lists, so overlap with Cochrane reviews is not counted yet.

Review question

ElementPlanned (methods)Found (results)
PopulationPatients undergoing maxillary sinus floor elevationPatients undergoing MSFE (n=4519 patients; 5101 surgeries)
InterventionAnatomic, patient-related or procedure-related exposuresSinus septa, smoking, membrane thickness, lateral wall thickness, residual ridge height, sex, age, diabetes, simultaneous vs staged placement, surgical side, edentulous region
ComparisonAbsence of the exposure or reference categoriesAbsence of exposure or reference category
OutcomesIntraoperative Schneiderian membrane perforation (incidence and associated factors)Membrane perforation incidence (19 studies patient-level; 22 studies surgery-level); 11 associated factors (4 to 13 studies each)
Study designsObservational studies (cohort, case-control, cross-sectional)26 observational studies (15 cross-sectional, 11 cohort)
TimingNot specifiedNot specified