Abstract
When the posterior maxilla is atrophic, the reference standard of care would be to perform sinus augmentation with an autologous bone graft through the lateral approach and delayed implant placement. However, placement of short implants with the osteotome sinus floor elevation technique and without graft can be proposed for an efficient treatment of clinical cases with a maxillary residual bone height of 4 to 8 mm. The use of grafting material is recommended only when the residual bone height is ≤4 mm. Indications of the lateral sinus floor elevation are limited to cases with a residual bone height ≤ 2 mm and fused corticals, uncompleted healing of the edentulous site, and absence of flat cortical bone crest or when the patient wishes to wear a removable prosthesis during the healing period. The presented case report illustrates osteotome sinus floor elevation with and without grafting and simultaneous implant placement in extreme conditions: atrophic maxilla, short implant placement, reduced healing time, and single crown rehabilitation. After 6 years, all placed implants were functional with an endosinus bone gain.
Highlights
The posterior maxilla remains a challenging area for implantsupported rehabilitation
Indications of the lateral sinus floor elevation are limited to cases with a residual bone height ≤ 2 mm and fused corticals, uncompleted healing of the edentulous site, and absence of flat cortical bone crest or when the patient wishes to wear a removable prosthesis during the healing period
They comprise (i) Procedure A: standard implant placement; (ii) Procedure B: sinus augmentation using a crestal approach with sinus osteotomes and simultaneous implant placement; Right sinus
Summary
The posterior maxilla remains a challenging area for implantsupported rehabilitation. The OSFE technique yields predictable results, with success rates reaching 95% [8–10] It limits the extent of the surgical site through a minimal invasive surgery and postoperative discomfort is attenuated and is comparable to that of standard implant placement. Tapered implants have been designed with a cylindroconical shape and a reduced thread pitch Through compressive insertion, they achieve sufficient primary stability in soft bone [14] and in sites of maxillary RBH as low as 2 mm [11]. The absence of grafting material eliminates the risks that result from a secondary surgical procedure at the donor site (infection, surgical trauma) and overfilling of the maxillary sinus (necrosis of the membrane, loss of the graft into the sinus, and sinusitis) [18] It reduces surgical cost and the healing period is shortened
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
