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Related Experiment Video

Updated: May 22, 2026

Oral Biofilm Formation on Different Materials for Dental Implants

Oral Biofilm Formation on Different Materials for Dental Implants

Published on: June 24, 2018

Microflora around teeth and dental implants.

Mohammad Shahabouee¹, Mansour Rismanchian, Jaber Yaghini

¹Dental Research Center and Department of Periodontology, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.

Dental Research Journal

|May 25, 2012

Summary

Dental implants with normal sulci (<4 mm) exhibit similar oral microflora to natural teeth, suggesting comparable susceptibility to inflammation. This research compares microbial parameters around implants and teeth.

Keywords:

Dental implants microflora tooth

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Area of Science:

Oral microbiology
Dental implantology
Periodontology

Background:

Oral implants are susceptible to microbial colonization upon exposure.
Understanding the microbial environment around implants is crucial for maintaining oral health.

Purpose of the Study:

To comparatively assess microbiological parameters in the gingival sulci of dental implants and adjacent natural teeth.
To determine if microbial differences exist between healthy implant sites and natural teeth.

Main Methods:

A prospective, cross-sectional study involving 34 partially edentulous patients (40-50 years old) with 50 anterior maxillary implants and 34 natural teeth.
Microbiological samples from sulci (<4 mm depth) were collected and analyzed using dark field microscopy and eight laboratory tests.
Exclusion criteria included compromised systemic/periodontal health, smoking, and recent antimicrobial mouthwash use.

Main Results:

Six anaerobic bacteria (Gram-positive cocci, Gram-negative cocci, Prevotella, Porphyromonas gingivalis, Bacteroid Fragilis, Fusobacterium) were identified in both implant and tooth sulci.
Gram-positive cocci were most frequent, while Gram-negative cocci were least frequent in both groups.
No statistically significant differences in microflora were observed between implant and tooth sulci (P > 0.05).

Conclusions:

The microflora composition in healthy implant sulci (<4 mm) is comparable to that of natural tooth sulci.
Dental implants with normal sulci exhibit similar susceptibility to inflammation as natural teeth.
These findings suggest that maintaining healthy peri-implant sulci is key to preventing implant-related inflammation.