Microbial analysis of bone collected during implant surgery : a clinical and laboratory study

Aim of the study

This study examines the bony debris collected during implant surgery in order to :

- identify bacterial contaminants ;

- compare the influence of two types of suction on the level of bacterial contamination.

Materials and methods

Twenty-four partially edentulous patients were included in the study. The placement of implants necessitated bone augmentation procedures. They were divided into two equal groups and underwent bone collection using a Frios^® Bone Collector during surgery to insert two implants. In one group (S), a rigorous suction was used and bone was collected from the interior of the surgical sites. In the other group (NS), bone retrieval and the control of tissue fluid was undertaken using the same suction head. The bone samples were subject to microbiological analysis to identify bacterial colonies.

Results

Twenty-eight species could be identified, of which some are associated with periodontal disease, such as enterococci, staphylococci, Prevotella intermedia, anaerobes, peptostreptococcus eubacteria. Fewer organisms were detected in Group S than in Group NS.

Conclusion

A system of strict aspiration is essential during the collection of bone used for the purposes augmenting bone around endosseous implants.

Commentary

The collection of bone debris during preparation of implant sites is a contribution that should not be neglected by the practitioner who is experienced in implant surgical procedures. Nevertheless, the methods of collection must be totally harmless, in order to reduce the possibility of bacterial contamination. Study and take note !