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Evaluation of Implant Stability Following Maxillary Sinus Floor Elevation Through Piezoelectric Trans-crestal Approach Versus Crestal Implant Approach

NCT07433868 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 26

Last updated 2026-03-02

No results posted yet for this study

Summary

Rehabilitation of the maxillary posterior region is a challenge in every-day clinical practice. Following extraction of maxillary molars, alveolar ridge atrophy along with maxillary sinus pneumatization decrease the bone volume and increase implant placement complexity (Lyu et al., 2023). Several surgical procedures have been proposed to overcome these complications, including; short implants (Bechara et al., 2017), tilted implants (Meng and Zhang, 2022) as well as different sinus floor elevation techniques (Irinakis, 2011, Bishbish et al., 2023, Dragonas et al., 2023). Crestal maxillary sinus floor elevation has been considered a predictable and less invasive approach, providing sufficient vertical ridge height with high rates of implant survival (Guruprasad et al., 2024). However, there's limited body of evidence comparing the efficacy of different trans-crestal approaches as PISE and crestal implant approach with no bone graft. Thus, further clinical trials are recommended to determine whether the adjunctive use of piezoelectric instrumentation in internal sinus elevation offers significant clinical advantages over the crestal implant approach.

Conditions

  • Internal Sinus Lifting

Interventions

PROCEDURE

PISE

Osteotomy site preparation will be initiated using a piezoelectric ultrasonic osteotome under sterile irrigation. Sequential osteotomy preparation will be carried out while maintaining the planned implant angulation 1 mm short of the sinus floor based on preoperative radiographic measurements done using the CBCT. Thinning the sinus floor will be achieved after using subsequent widening drills and the integrity of the Schneiderian membrane and the residual bone thickness will be verified using periapical radiographs to ensure the exact amount of remaining floor bone

PROCEDURE

Crestal implant approach

Osteotomy site preparation and implant drilling sequence were performed according to the manufacturer's instructions. Drilling will be done gently till reaching 0.5-1mm from the sinus floor, checked by periapical radiographs with the drills placed in the osteotomy. During implant placement, the sinus membrane will be gently elevated with the blunt rounded circular apex of the implant

Sponsors & Collaborators

  • International Dental Contiuing Education

    lead NETWORK

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
21 Years
Max Age
55 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-03-01
Primary Completion
2027-04-01
Completion
2027-05-01

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07433868 on ClinicalTrials.gov