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A Modified Transalveolar Sinus Floor Elevation Approach With a Bilaterally Enlarged Osteotomy
Yuting Zhang1, Xin Zhang1, Jian Wang1
1State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China School of Stomatology, Sichuan University, Chengdu, People's Republic of China.
The Journal of Oral Implantology
|June 6, 2021
Summary
This study presents a modified sinus floor elevation technique for vertical bone augmentation in the posterior maxilla. The approach enhances access for implant placement on severely resorbed ridges, reducing membrane perforation risk.
Area of Science:
- Dentistry
- Oral Surgery
- Implantology
Background:
- Vertical bone augmentation is crucial for posterior maxillary implants.
- Sinus floor elevation is a common but challenging procedure.
- Severely resorbed ridges pose difficulties for implant placement.
Purpose of the Study:
- To describe a modified transalveolar sinus floor elevation technique.
- To improve access and reduce perforation risk during membrane elevation.
- To facilitate implant placement in resorbed posterior maxilla.
Main Methods:
- Modified transalveolar approach for sinus floor elevation.
- Bilateral enlargement of crestal osteotomies (8.0-10.0 mm).
- Direct instrument contact with sinus floor bone for membrane elevation.
Main Results:
- Enhanced access to the sinus floor.
- Reduced risk of Schneiderian membrane perforation.
- Facilitated implant placement in severely resorbed ridges.
Conclusions:
- The modified technique offers improved access and safety for sinus floor elevation.
- This approach is effective for vertical bone augmentation in the posterior maxilla.
- It enables predictable implant placement even in challenging anatomical situations.
