Reduction of precocious peri-implant resorption cone

Area of Science:

• Dental Implantology
• Oral Surgery
• Periodontology

Background:

• Peri-implant bone tissue undergoes resorption after implant insertion due to inflammatory cell tissue (ICT).
• Conventional implant placement protocols may lead to marginal bone loss.
• Understanding factors influencing bone remodeling around implants is crucial for long-term success.

Purpose of the Study:

• To investigate the efficacy of placing implant fixtures 0.5 mm outside the cortical bone edge in limiting bone resorption.
• To compare the early bone resorption process between the novel placement technique and conventional juxtacortical bone insertion.

Main Methods:

• A clinically-controlled randomized study involving 100 implants.
• Comparison of implant fixtures placed 0.5 mm outside the cortical bone edge (emersion approach) versus conventional juxtacortical bone placement (submerged treatment).
• Assessment of bone resorption at the implant-bone interface after 6 months.

Main Results:

• The emersion approach showed a significantly higher bone implant level (-1.01±0.54 mm) compared to the submerged treatment (-1.56±0.5 mm) after 6 months (P<0.001).
• This indicates reduced bone resorption with the emersion technique.

Conclusions:

• Placing implant fixtures 0.5 mm outside the cortical bone edge appears to be a promising strategy for limiting marginal bone resorption.
• The findings suggest favorable conditions for achieving excellent long-term results, although further follow-up studies are warranted.