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The aim of this study is to evaluate the transcrestal sinus lift using Osseodensification versus lateral window technique with simultaneous implant placement.
In Group 1, crestal maxillary sinus floor elevation will be done using Osseodensification. An incision will be made near the palate, and a conservative flap will be elevated. Osseodensification burs will be used to create an osteotomy and elevate the sinus membrane gradually. The osteotomy will be filled with bone graft, and the implant will be inserted.
In Group 2, lateral maxillary sinus floor elevation will be performed by creating a bony window in the lateral wall of the sinus. The sinus floor will be carefully elevated using sinus elevation curettes. If there's a membrane perforation, a collagen membrane will be applied. Bone substitute material will be packed into the sinus, and a resorbable membrane will be placed over the window before suturing.
Both groups will use Nanobone as the graft material.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Group 1: Crestal Maxillary Sinus Floor Elevation using Osseodensification: | Experimental | A crestal incision will be made towards the palate for better wound closure. A conservative flap will be raised, extending beyond the alveolar crest to minimize complications. In cases with 4-6mm ridge height and a need for 3mm vertical depth, a narrow densifying bur will be used, followed by wider burs to elevate the sinus membrane. The Densah® Bur will compact graft material to lift the membrane without penetrating the sinus floor. The osteotomy will be filled with bone graft substitute, and the final bur will apically propel the graft for vertical augmentation. Implant placement follows confirmation via radiography. |
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| Group 2: Lateral Maxillary Sinus Floor Elevation | Experimental | In the Lateral technique, a crestal incision and mucoperiosteal flap will expose the sinus's lateral wall. A bony window is created, and when removable, sinus elevation curettes are used to elevate the sinus floor cautiously. Membrane perforations are covered with a resorbable collagen membrane if needed. Implant osteotomies follow standard protocol. Graft material mixed with saline is gently packed into the sinus to achieve the desired bone height. A resorbable membrane is placed on the window's outer surface, and the flap is sutured for primary closure. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Crestal Maxillary Sinus Floor Elevation using Osseodensification | Procedure | Patients will be prepared for surgery with local anesthesia and thorough oral cavity disinfection. A full thickness crestal incision will be made slightly towards the palate to enhance the possibility of achieving primary wound closure. A conservative flap will be raised, extending slightly beyond the alveolar crest, to minimize flap-related issues. After preparing the osteotomy site using Densah burs and elevating the sinus to the desired height, the implant will be inserted into the osteotomy site. |
| Measure | Description | Time Frame |
|---|---|---|
| Bone height gain | In Millimeter(mm) | Immediate post-operative, 6 Months post-operative |
| Measure | Description | Time Frame |
|---|---|---|
| Ridge height | In Millimeter(mm) | Immediate post-operative, 6 Months post-operative |
| Implant stability | In implant stability quotient (ISQ) |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Faculty of Dental Medicine - Al-Azhar University | Asyut | Egypt |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 28254402 | Background | Moraschini V, Uzeda MG, Sartoretto SC, Calasans-Maia MD. Maxillary sinus floor elevation with simultaneous implant placement without grafting materials: a systematic review and meta-analysis. Int J Oral Maxillofac Surg. 2017 May;46(5):636-647. doi: 10.1016/j.ijom.2017.01.021. Epub 2017 Feb 21. | |
| 18724852 | Background |
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| Lateral Maxillary Sinus Floor Elevation | Procedure | A crestal incision with an anterior vertical releasing incision exposes the sinus's lateral wall. A mucoperiosteal flap is carefully reflected, revealing the sinus. A bony window is created using a Piezoelectric device, and after elevation, the sinus floor is carefully lifted with various curettes. Implant osteotomies follow standard placement protocol, with precautions against sinus membrane perforation. Nanobone is used as graft material, mixed with saline and gently packed into the sinus. A resorbable membrane is placed on the window's outer surface, secured with circumferential resorbable sutures, and the flap is sutured for closure. |
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| Immediate post-operative, 6 Months post-operative |
| Bone Density | In Hounsfield units (HU) | Immediate post-operative, 6 Months post-operative |
| Pjetursson BE, Tan WC, Zwahlen M, Lang NP. A systematic review of the success of sinus floor elevation and survival of implants inserted in combination with sinus floor elevation. J Clin Periodontol. 2008 Sep;35(8 Suppl):216-40. doi: 10.1111/j.1600-051X.2008.01272.x. |
| 19885447 | Background | Jensen SS, Terheyden H. Bone augmentation procedures in localized defects in the alveolar ridge: clinical results with different bone grafts and bone-substitute materials. Int J Oral Maxillofac Implants. 2009;24 Suppl:218-36. |
| 19885448 | Background | Chiapasco M, Casentini P, Zaniboni M. Bone augmentation procedures in implant dentistry. Int J Oral Maxillofac Implants. 2009;24 Suppl:237-59. |
| 9759033 | Background | Summers RB. Sinus floor elevation with osteotomes. J Esthet Dent. 1998;10(3):164-71. doi: 10.1111/j.1708-8240.1998.tb00352.x. |
| 31367919 | Background | Suk-Arj P, Wongchuensoontorn C, Taebunpakul P. Evaluation of bone formation following the osteotome sinus floor elevation technique without grafting using cone beam computed tomography: a preliminary study. Int J Implant Dent. 2019 Aug 1;5(1):27. doi: 10.1186/s40729-019-0181-7. |
| 19681937 | Background | Kfir E, Goldstein M, Yerushalmi I, Rafaelov R, Mazor Z, Kfir V, Kaluski E. Minimally invasive antral membrane balloon elevation - results of a multicenter registry. Clin Implant Dent Relat Res. 2009 Oct;11 Suppl 1:e83-91. doi: 10.1111/j.1708-8208.2009.00213.x. Epub 2009 Aug 3. |
| Background | Toffler M, Rosen P. Complications with transcrestal sinus floor elevation: Etiology, prevention, and treatment. In: Froum S (ed). Dental Implant Complications: Etiology, Prevention, and Treatment Hoboken, New Jersey: Wiley, 2015. |
| 30427961 | Background | Huwais S, Mazor Z, Ioannou AL, Gluckman H, Neiva R. A Multicenter Retrospective Clinical Study with Up-to-5-Year Follow-up Utilizing a Method that Enhances Bone Density and Allows for Transcrestal Sinus Augmentation Through Compaction Grafting. Int J Oral Maxillofac Implants. 2018 Nov/Dec;33(6):1305-1311. doi: 10.11607/jomi.6770. |
| 27741329 | Background | Huwais S, Meyer EG. A Novel Osseous Densification Approach in Implant Osteotomy Preparation to Increase Biomechanical Primary Stability, Bone Mineral Density, and Bone-to-Implant Contact. Int J Oral Maxillofac Implants. 2017 Jan/Feb;32(1):27-36. doi: 10.11607/jomi.4817. Epub 2016 Oct 14. |