Abstract:
Background: Infection, overheating, premature loading and impaired healing are the main factors associated with
early failure of dental implants. Multiple implant failures in the same patient, supports the evidence that individual
characteristics play an important role in the early failure process. Veillonella spp. are early colonizers of dental
biofilms and small, usually non-fermentative, strict anaerobic, nonmotile, nonsporulating, gram-negative cocci that
lack capsule.
Objective: The objective of this study was to investigate the possible associated factors and early multiple implant
failures in the same patient.
Case Description: A 55-years-old female patient had peri-implant radiolucencies of two adjacent implant sites at
the left posterior mandibula 3 months after surgical placement. Aerobic and anaerobic culture techniques were used
to study the peri-implant microflora at sites with implant failures. An amoxicillin-resistant Veillonella bacteria was
isolated.
Conclusion: The present case shows that amoxicillin-resistant Veillonella associated peri-implantitis can be a risk
factor for early implant failures.
