ArticleBDJ open2025
External sinus lift with simultaneous implant placement for severely atrophic maxilla: optimization of staged surgical approaches.
Article in BDJ open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundIn previous studies, immediate implant placement in molar regions has been widely applied. PURPOSE: To study the clinical effect and feasibility of simultaneous implantation of implants combined with lateral maxillary sinus floor elevation in the maxillary molar region with severe bone defects. MATERIALS AND
methodsPatients requiring lateral maxillary sinus elevation (LMSE) surgery in the maxillary molar region were selected. The patients (residual bone height, RBH < 3 mm) were randomly divided into two groups: the experimental group underwent simultaneous implant placement combined with LMSE; the control group first received bone augmentation via LMSE, followed by delayed implant placement. The outcome indicators included implant success rate, surgical complications, and measurements of Cone Beam Computer Tomography (CBCT) data.
resultsThe implant survival rate of both groups was 100%. One patient in each group experienced a maxillary sinus membrane perforation. From T1 (immediately after surgery) to T2 (9 months after surgery), both the bone height and bone width decreased in both the experimental group and the control group, and the bone resorption at the three sites (IBSH, MBH, DBH) in terms of bone height was greater than that in terms of bone width. The minimum bone resorption was observed at the IBSH site in both group. The amount of bone resorption in the experimental group at the above three sites was less than that in the control group, with statistical differences(p < 0.05). There was no statistical difference in the amount of bone width resorption between the two groups(p > 0.05).
conclusionIn cases where the bone volume is less than 3 mm, the method of simultaneous implantation with LMSE is feasible.
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