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Clinical Oral Investigations

, Volume 23, Issue 3, pp 1161–1170 | Cite as

Antimicrobial susceptibilities of Aggregatibacter actinomycetemcomitans and Porphyromonas gingivalis strains from periodontitis patients in Morocco

  • M. Mínguez
  • O. K. Ennibi
  • P. Perdiguero
  • L. Lakhdar
  • L. Abdellaoui
  • M. C. Sánchez
  • M. Sanz
  • David HerreraEmail author
Original Article
  • 162 Downloads

Abstract

Background and objective

Aggregatibacter actinomycetemcomitans and Porphyromonas gingivalis have been frequently isolated in periodontitis patients in Morocco. Its persistence after the subgingival debridement of the biofilm has been correlated with worse clinical outcomes. The aim of this study was to evaluate the antimicrobial susceptibilities of A. actinomycetemcomitans and P. gingivalis, to amoxicillin, amoxicillin plus clavulanate, metronidazole, and azithromycin. In addition, microbiological profiles of patients harbouring A. actinomycetemcomitans, P. gingivalis, or both were compared.

Material and methods

In 45 consecutive periodontitis Moroccan patients, subgingival samples were taken and processed by culture. Twenty-four A. actinomycetemcomitans and 30 P. gingivalis colonies were isolated (54 strains) and susceptibility tests, using the epsilometric method, were run for amoxicillin, amoxicillin plus clavulanate, metronidazole, and azithromycin. Minimum inhibitory concentrations for 50 (MIC50) and 90% (MIC90) of the organisms were calculated.

Results

The prevalence of A. actinomycetemcomitans and P. gingivalis was 79.5 and 84.4%, respectively. A. actinomycetemcomitans showed susceptibility to amoxicillin, amoxicillin plus clavulanate, while 28% of the isolated strains were resistant to azithromycin and 61.7% towards metronidazole. No P. gingivalis resistance towards amoxicillin, amoxicillin plus clavulanate, metronidazole, and azithromycin was found.

Conclusion

A. actinomycetemcomitans and P. gingivalis were frequently detected in Moroccan patients with periodontitis, while antimicrobial resistance was only detected for A. actinomycetemcomitans to metronidazole and azithromycin.

Clinical relevance

A. actinomycetemcomitans resistance against some antimicrobials in periodontitis patients in Morocco can influence the selection of the therapeutic approaches.

Keywords

Antimicrobial susceptibilities Periodontitis Morocco Aggregatibacter actinomycetemcomitans Porphyromonas gingivalis 

Notes

Acknowledgments

We thank Itziar González and Ana O’Connor from the Laboratory of Dental Research, University Complutense, Madrid, for their technical assistance.

Author contributions

MM carried out acquisition of data, performed the antimicrobial susceptibility tests, and drafted the manuscript. LL and AL carried out the acquisition of data. PP and MCS processed the samples. DH conceived of the study, participated in the design of the study, and revised critically the manuscript. MS participated in the design of the study and its coordination. OKE took part in the coordination of the study, in the collection of the data, and revised critically the manuscript. All authors read and approved the final manuscript.

Funding information

The work was supported by the ETEP (Aetiology and Therapy of Periodontal Diseases) Research Group, University Complutense, Madrid, Spain.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflicts of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • M. Mínguez
    • 1
  • O. K. Ennibi
    • 2
  • P. Perdiguero
    • 3
  • L. Lakhdar
    • 2
  • L. Abdellaoui
    • 2
  • M. C. Sánchez
    • 3
  • M. Sanz
    • 1
    • 4
  • David Herrera
    • 1
    • 4
    Email author
  1. 1.Section of Periodontology, Faculty of OdontologyUniversity ComplutenseMadridSpain
  2. 2.EREB (Oral Ecosystem) Research Group, Faculty of Medicine DentistryMohammed V UniversityRabatMorocco
  3. 3.Laboratory of Research, Faculty of OdontologyUniversity ComplutenseMadridSpain
  4. 4.ETEP (Etiology and Therapy of Periodontal Diseases) Research GroupUniversity ComplutenseMadridSpain

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