[Clinical study on delayed flapless implants placement after bone powder grafted immediately in postextraction...

Area of Science:

• Oral surgery
• Dental implantology
• Bone regeneration

Background:

• Alveolar bone resorption after tooth extraction poses challenges for dental implant placement.
• Preserving bone volume is crucial for successful long-term implant outcomes.

Purpose of the Study:

• To evaluate the clinical outcomes of delayed flapless implant placement following immediate bone grafting in post-extraction sockets.
• To assess the efficacy of bone powder grafting in maintaining alveolar bone volume.

Main Methods:

• 23 patients received immediate bone grafting with artificial bone powders (Bio-oss, demineralized bone) in fresh extraction sockets with 3-4 walls.
• Grafts were covered with titanium membranes, extending 2-3mm above socket level.
• After 3 months, alveolar bone height and width were assessed; flapless implants were placed if sufficient bone was present (≥4.0mm diameter, 9mm length).
• Primary implant stability was measured, and success rates were evaluated during follow-up (6-62 months).

Main Results:

• Alveolar bone height and width were maintained without significant atrophy.
• Flapless implant placements were performed with minimal local reaction.
• All 36 implants achieved primary stability (≥30N) and showed no failures during the follow-up period.

Conclusions:

• Immediate bone grafting in post-extraction sockets effectively preserves alveolar bone volume for dental implants.
• Delayed flapless implant placement in grafted sites simplifies procedures and reduces complications.
• This technique offers an effective approach for dental implantation, enhancing predictability and patient outcomes.