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Endoscopic Assessment of Schneiderian Membrane Perforation During Osseodensification-mediated Transcrestal Sinus Floor Elevation With Graftless Immediate Implant Placement in Subsinus Bone Height of 4-6 mm: A Pilot Study.

Endoscopic Assessment of Schneiderian Membrane Perforation During Osseodensification-mediated Transcrestal Sinus Floor Elevation With Immediate Implant Placement in Subsinus Bone Height of 4-6 mm: A Pilot Study

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07542275
Enrollment
6
Registered
2026-04-21
Start date
2025-09-01
Completion date
2026-03-24
Last updated
2026-05-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Periodontal Disease, Sinusitis

Keywords

crestal sinus lift, dental implants, endoscopy, osseodensification, sinus floor augmentation, sinus membrane perforation

Brief summary

This present study will evaluate Schneiderian membrane perforation rates using osseodensification in TSFE with simultaneous graftless implant placement, under sinuscopic control monitored by an ENT specialist. An endoscopic evaluation will be continuously conducted throughout the surgical procedure. TSFE will be performed using Densah burs without the addition of bone graft material, followed by implant placement. The rationale behind this approach is to monitor the response of the Schneiderian membrane and assess the effects of Densah burs on membrane distention and the occurrence of SMP.

Interventions

DEVICEScheiderian Membrane Perforation

Assess endoscopically any Scheiderian membrane perforation while performing transcrestal sinus floor elevation using the densah burs

Sponsors

Saint-Joseph University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Intervention model description

Pilot Study

Eligibility

Sex/Gender
ALL
Age
21 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* males and females over 21 years of age; * partial edentulism in the posterior maxilla involving 2 or more adjacent teeth in the premolar-molar area; * teeth at the intended implant sites must have been extracted or lost at least 9 months before the date of implant surgery; * sinus floor with a relatively flat contour confirmed on baseline CBCT; * bucco-palatal sinus width (distance between the buccal and palatal walls at 10-mm apical level comprising the residual alveolar crest ) 8-12 mm confirmed on baseline CBCT to minimize the risk of SMP during surgery (Stacchi et al. 2022); * sinus membrane thickness ≤ 2 mm; * subsinus residual bone height (RBH) 4-6 mm at the intended implant sites and bucco-palatal bone width allowing implant placement without bone augmentation procedures.

Exclusion criteria

* systemic conditions contraindicating implant surgery; * pregnancy or lactation; * ongoing or history of pathologies or medications affecting bone metabolism; * ongoing or history of head and neck irradiation; * oral inflammatory and autoimmune diseases; * presence of osseous lesions or persistent infections in the planned implant sites; * previous bone augmentation surgery; * uncontrolled periodontal diseases; * heavy smoking (\> 10 cigarettes/day); * history of sinus surgery; * presence of intrasinus bony septa that could affect membrane elevation and distention; and * ongoing or history of rhinitis or sinusitis.

Design outcomes

Primary

MeasureTime frameDescription
incidence of Scheiderian membrane perforationPerioperativeThe primary aim of the present clinical study is to evaluate the incidence of SMP during TSFE with immediate implant placement performed by a trainee surgeon using the osseodensification technique under sinuscopic control in sinuses of comparable contour

Secondary

MeasureTime frameDescription
primary stability achieved by the implants at insertion measured with the insertion torque value, in N.cmPerioperativestudied in all cases
qualitative pattern of membrane distention, differentiated into either a U-shaped dome or a V-shaped domePerioperativeStudies in case of SMP occurrence
time at which the potential perforation occurPerioperativeStudies in case of SMP occurrence
Size of potential perforations, in mm, classified as pinhole <1mm, small >1mm and <2mm, medium >2mm and < 3mm, large >3mmPerioperativeStudied in case of SMP occurrence

Countries

Lebanon

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 2, 2026