Detection of specific microorganism in infected root canals of patients with Diabetes Mellitus using PCR
Abstract
Background and Aim: The aim of this in vitro study was to
evaluate the presence of Enterococcus faecalis, Prevotella
intermedia, Fusobacterium nucleatum, Porphyromonas gingivalis,
Peptostreptococcus micros, Streptococcus spp., and Candida
albicans in the primary and secondary/persistent infected root
canals of patients with diabetes mellitus by polymerase chain
reaction (PCR).
Materials and Methods: Microbial samples were collected from
30 root canals of 30 patients with type 2 diabetes, who had either
primary (n=15) or secondary/persistent (n=15) root canal infections.
PCR was used to detect 6 bacterial and 1 fungal species. DNA
extracted from the samples was analysed for the presence of 16S
rDNA and then for the target species by species-specific primers.
Qualitative variables were statistically analysed via the Pearson chisquare
test, Yates-corrected chi-square test, and Fisher’s exact test.
The difference between groups in terms of age was analysed via
the independent samples t-test (p = 0.05).
Results: 16S rDNA was detected in all the samples. Twentyone
samples produced amplicons with 1 or more of the 6 specific
bacterial primer pairs. No amplicons with any of the specific
primers were observed in the 9 samples where 16S rDNA was
detected. All the microorganisms tested were detected with
equal prevalence in both primary and secondary/persistent root
canal infections (p>0.05). Streptococcus spp. was the most
frequently detected species in primary (53.3%) and secondary/
persistent (46.7%) infections. C. albicans was not detected in any
of the samples. E. faecalis was detected in only one sample of
secondary/persistent infections.
Conclusion: Primary and secondary/persistent root canal
infections in patients with diabetes mellitus had similar microbial
compositions.
Keywords
Supporting Institution
This study was supported by Zonguldak Bülent Ecevit University Scientific Research Projects Coordination Office with the project number
Project Number
2020-34876299-02
Ethical Statement
This study protocol was approved by the Clinical Research Ethics Committee of the University of Zonguldak Bülent Ecevit University (approval number: 2020/19).
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Details
Primary Language
English
Subjects
Endodontics
Journal Section
Research Article
Publication Date
April 29, 2026
Submission Date
June 23, 2025
Acceptance Date
September 11, 2025
Published in Issue
Year 2026 Volume: 50 Number: 1
APA
Aktemur Türker, S., Avci, G., & Cömert, F. (2026). Detection of specific microorganism in infected root canals of patients with Diabetes Mellitus using PCR. Clinical Dentistry and Research, 50(1), 30-37. https://doi.org/10.65022/clindentres.1725487
AMA
1.Aktemur Türker S, Avci G, Cömert F. Detection of specific microorganism in infected root canals of patients with Diabetes Mellitus using PCR. Clin Dent Res. 2026;50(1):30-37. doi:10.65022/clindentres.1725487
Chicago
Aktemur Türker, Sevinç, Gülhan Avci, and Füsun Cömert. 2026. “Detection of Specific Microorganism in Infected Root Canals of Patients With Diabetes Mellitus Using PCR”. Clinical Dentistry and Research 50 (1): 30-37. https://doi.org/10.65022/clindentres.1725487.
EndNote
Aktemur Türker S, Avci G, Cömert F (April 1, 2026) Detection of specific microorganism in infected root canals of patients with Diabetes Mellitus using PCR. Clinical Dentistry and Research 50 1 30–37.
IEEE
[1]S. Aktemur Türker, G. Avci, and F. Cömert, “Detection of specific microorganism in infected root canals of patients with Diabetes Mellitus using PCR”, Clin Dent Res, vol. 50, no. 1, pp. 30–37, Apr. 2026, doi: 10.65022/clindentres.1725487.
ISNAD
Aktemur Türker, Sevinç - Avci, Gülhan - Cömert, Füsun. “Detection of Specific Microorganism in Infected Root Canals of Patients With Diabetes Mellitus Using PCR”. Clinical Dentistry and Research 50/1 (April 1, 2026): 30-37. https://doi.org/10.65022/clindentres.1725487.
JAMA
1.Aktemur Türker S, Avci G, Cömert F. Detection of specific microorganism in infected root canals of patients with Diabetes Mellitus using PCR. Clin Dent Res. 2026;50:30–37.
MLA
Aktemur Türker, Sevinç, et al. “Detection of Specific Microorganism in Infected Root Canals of Patients With Diabetes Mellitus Using PCR”. Clinical Dentistry and Research, vol. 50, no. 1, Apr. 2026, pp. 30-37, doi:10.65022/clindentres.1725487.
Vancouver
1.Sevinç Aktemur Türker, Gülhan Avci, Füsun Cömert. Detection of specific microorganism in infected root canals of patients with Diabetes Mellitus using PCR. Clin Dent Res. 2026 Apr. 1;50(1):30-7. doi:10.65022/clindentres.1725487