A comparative analysis of peri-implant sulcular microflora in delayed versus immediately placed dental implants

TL;DR

This study compares the bacterial communities in dental implants placed immediately after tooth extraction versus those placed later, finding differences in early microbial colonization.

Contribution

The study provides new insights into how implant timing affects early microbial colonization and potential dysbiosis.

Findings

Immediate implants showed higher commensal bacteria at 3 months.

Delayed implants had increased pathogenic bacteria like Porphyromonas gingivalis at 6 months.

Microbial differences between groups diminished by 12 months.

Abstract

The timing of dental implant placement may influence early microbial colonization and long-term peri-implant health. This prospective
cohort study compared sulcular microflora in immediate (n=30) versus delayed (n=30) single-tooth implants over 12 months using 16S rRNA
sequencing. Immediate implants showed higher levels of commensal genera at 3 months, whereas delayed implants exhibited increased
colonization by Porphyromonas gingivalis and Tannerella forsythia at 6 months (p<0.05). By 12 months, microbial differences
diminished, with convergence of pathogenic species between groups. Delayed placement appears more prone to early dysbiosis, underscoring
the need for rigorous plaque control and monitoring.