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Related Experiment Video

Updated: Jun 10, 2026

Oral Biofilm Formation on Different Materials for Dental Implants

Oral Biofilm Formation on Different Materials for Dental Implants

Published on: June 24, 2018

Bacteraemia following dental implants' placement.

A Piñeiro¹, I Tomás, J Blanco

¹Department of Special Needs, School of Medicine and Dentistry, Santiago de Compostela University, Galicia, Spain.

Clinical Oral Implants Research

|August 13, 2010

Summary

Dental implant placement rarely causes significant bacteraemia. A chlorhexidine digluconate (CHX) mouthrinse showed potential in preventing bacteraemia, suggesting it may be a viable alternative to antibiotics for at-risk patients.

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Area of Science:

Oral surgery
Infectious diseases
Microbiology

Background:

Bacteraemia following dental implant placement is a potential concern, especially for patients at risk of infective endocarditis.
The efficacy of prophylactic measures, such as antibiotic use, is debated.

Purpose of the Study:

To determine the prevalence and duration of bacteraemia after implant surgery.
To evaluate the prophylactic effectiveness of a chlorhexidine digluconate (CHX) mouthrinse.

Main Methods:

Fifty patients undergoing implant placement were randomized into two groups: a control group (no prophylaxis) and a CHX group (0.2% CHX mouthrinse).
Blood samples were collected at baseline, 30 seconds, and 15 minutes post-surgery.
Bacterial cultures were analyzed using automated systems and conventional microbiological techniques.

Main Results:

Bacteraemia prevalence was 2% at baseline.
In the control group, bacteraemia occurred in 6.7% of samples at 30 seconds and 3.3% at 15 minutes, with no significant difference from baseline.
No bacteraemia was detected in the CHX group at any time point.

Conclusions:

Implant placement using a mucoperiosteal flap does not pose a significant bacteraemia risk.
The routine use of antibiotic prophylaxis for preventing focal infections in at-risk patients undergoing implant placement is questionable.
A 0.2% CHX mouthrinse is recommended as a prophylactic measure before dental implant procedures.