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Aim <p>This case series aimed to endoscopically monitor the sinus membrane integrity and assess the perforation rate during transcrestal sinus elevation using osseodensification. </p> Materials and Methods <p>27 patients (mean age: 51 ± 4.7 years) with missing maxillary molars and a residual alveolar bone height (RBH) ranging from 4 to 7.8&#xa0;mm (5.51 ± 2.46&#xa0;mm) were included. The pilot bur was used in a clockwise direction, followed by subsequent drills, which were used in a counterclockwise direction, advancing 1&#xa0;mm in depth with each step. An endoscope was introduced, by a lateral antrostomy, to visualize the membrane integrity in real time. Allogenous bone was then introduced into the osteotomy site for patients with RBH ≤ 5&#xa0;mm, the final densifying bur was run at a slow speed (100–200&#xa0;rpm) in counterclockwise direction and an implant was placed.</p> Results <p>The average RBH increased from 5.51 ± 2.46&#xa0;mm to 10.35 ± 0.72&#xa0;mm at 6 months, based on cone beam computed tomographic (CBCT) evaluation. Two subjects (7.4%) experienced a perforation of the sinus membrane during the elevation procedure. </p> Conclusion <p>Real-time endoscopic evaluation is the most reliable method for detecting sinus membrane perforations. Osseodensification may offer a safe approach to transcrestal membrane manipulation, with a perforation rate of 7.4%.</p>

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Transcrestal Sinus Floor Elevation Using Osseodensification with Endoscopic Assessment: A Case Series

  • 期刊论文

  • 发表日期：

    2026年2月25日

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  • Yazad Gandhi,
  • Ninad Padhye,
  • Neel Bhatavadekar

摘要

Aim

This case series aimed to endoscopically monitor the sinus membrane integrity and assess the perforation rate during transcrestal sinus elevation using osseodensification.

Materials and Methods

27 patients (mean age: 51 ± 4.7 years) with missing maxillary molars and a residual alveolar bone height (RBH) ranging from 4 to 7.8 mm (5.51 ± 2.46 mm) were included. The pilot bur was used in a clockwise direction, followed by subsequent drills, which were used in a counterclockwise direction, advancing 1 mm in depth with each step. An endoscope was introduced, by a lateral antrostomy, to visualize the membrane integrity in real time. Allogenous bone was then introduced into the osteotomy site for patients with RBH ≤ 5 mm, the final densifying bur was run at a slow speed (100–200 rpm) in counterclockwise direction and an implant was placed.

Results

The average RBH increased from 5.51 ± 2.46 mm to 10.35 ± 0.72 mm at 6 months, based on cone beam computed tomographic (CBCT) evaluation. Two subjects (7.4%) experienced a perforation of the sinus membrane during the elevation procedure.

Conclusion

Real-time endoscopic evaluation is the most reliable method for detecting sinus membrane perforations. Osseodensification may offer a safe approach to transcrestal membrane manipulation, with a perforation rate of 7.4%.