[Bone collected with a bone collector during dental implant surgery]

Area of Science:

• Oral implantology
• Microbiology
• Biomaterials

Background:

• Simultaneous implantation and augmentation procedures utilize autogenous bone collected during surgery.
• Assessing bacterial contamination of this collected bone is crucial for successful outcomes.

Purpose of the Study:

• To identify bacterial contamination in bone collected using a bone collector.
• To evaluate the antimicrobial efficacy of rinsing the bone collector with 0.1% chlorhexidine solution.

Main Methods:

• 39 patients undergoing simultaneous implantation and augmentation were studied.
• Bone and saliva samples were collected, with bone collected using the Osseous Coagulum Trap.
• Microbiological analysis included cultivation, identification, and semiquantitative assessment of microorganisms.

Main Results:

• Pre-rinsing contamination was found in 82.7% of bone samples, with 37 microbial species identified.
• After rinsing the collector with 0.1% chlorhexidine, 66.7% of samples were sterile, significantly reducing contamination.
• Preoperative chlorhexidine mouthwash and separate suction techniques did not eliminate contamination.

Conclusions:

• Bacterial contamination of bone collected via bone collectors is common, including oral flora and implant failure-associated microorganisms.
• Rinsing the bone collector with 200 ml of 0.1% chlorhexidine solution significantly reduces microbial contamination.
• Further research is needed to assess the impact of chlorhexidine rinsing on bone vitality before recommending it for routine use.