Osteotome sinus floor elevation with or without grafting: a preliminary clinical trial

Area of Science:

• Oral Surgery
• Dental Implantology
• Bone Regeneration

Background:

• Atrophic posterior maxilla poses challenges for dental implant placement.
• Sinus floor elevation techniques are crucial for augmenting bone height.
• The osteotome sinus floor elevation (OSFE) technique offers a less invasive approach.

Purpose of the Study:

• To assess the predictability of the OSFE technique for dental implants.
• To determine the impact of simultaneous grafting on implant success with OSFE.
• To evaluate bone changes in grafted and non-grafted OSFE sites.

Main Methods:

• 280 Straumann implants placed using OSFE in 202 patients.
• 191 implants placed in 125 patients without grafting.
• Radiographic analysis of 30 implants at 3 and 9 months for bone changes.

Main Results:

• Cumulative survival rate of 95.71% for 280 implants.
• No significant difference in residual bone height, survival rate, or perforation between grafted and non-grafted groups.
• Radiographic analysis showed new bone formation (endo-sinus bone gain) and predictable crestal bone loss.

Conclusions:

• OSFE is a predictable technique for achieving osseointegration in the atrophic posterior maxilla, with or without grafting.
• Spontaneous new bone formation is expected in non-grafted OSFE sites.
• Implant protrusion length correlated with endo-sinus bone gain.