RT-PCR quantification of periodontal pathogens in crack users and non-users.

Abstract:

OBJECTIVE:To compare counts of Aggregatibacter actinomycetemcomitans, Prevotella intermedia, Porphyromonas gingivalis and Fusobacterium nucleatum between crack users and non-users. MATERIALS AND METHODS:A cross-sectional study was conducted involving seventy-four crack cocaine users and eighty-one non-users matched for age, gender and tobacco use. Demographic and clinical variables were analysed. Subgingival bacterial samples were collected from four sites with the greatest probing depths and were analysed using real-time polymerase chain reaction. RESULTS:No significant difference was found in the prevalence of total counts for each bacterial species analysed between groups. However, crack users had a 1.85 (95% CI: 1.03-3.31), 2.19 (95% CI 1.24-3.88), 2.53 (95% CI 1.27-5.04) and 2.40 (95% CI 1.22-4.75) greater probability of having the higher counts (≥75th percentile) for Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Prevotella intermedia and Fusobacterium nucleatum, respectively. CONCLUSION:Although some crack users had higher (>75th percentile) bacterial counts for Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Prevotella intermedia and Fusobacterium nucleatum, total counts did not differ between crack users and non-users, leading to the hypothesis that the higher occurrence of periodontitis on crack users may be related to other non-bacterial factors.

journal_name

Oral Dis

journal_title

Oral diseases

authors

Casarin M,Antoniazzi RP,Vaucher RA,Feldens CA,Zanatta FB

doi

10.1111/odi.12609

subject

Has Abstract

pub_date

2017-04-01 00:00:00

pages

324-330

issue

3

eissn

1354-523X

issn

1601-0825

journal_volume

23

pub_type

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