J Lab Physicians. 2015 Jan-Jun;7(1):49-54. doi: 10.4103/0974-2727.154798.
Microbial flora in chronic periodontitis: study at a tertiary health care center from north karnataka.
Journal of laboratory physicians
Kirtilaxmi K Benachinmardi, Jyoti Nagamoti, Shaila Kothiwale, Sharada C Metgud
Affiliations
Affiliations
- Department of Microbiology, Employees' State Insurance Corporation Medical College and PGIMSR, Rajajinagar, Bengaluru, India.
- Department of Microbiology, Jawaharlal Nehru Medical College, Belgaum, Karnataka, India.
- Department of Periodontics, V. K. Institute of Dental Sciences, KLE University, Belgaum, Karnataka, India.
PMID: 25949060
PMCID: PMC4411811 DOI: 10.4103/0974-2727.154798
Abstract
BACKGROUND AND OBJECTIVE: Periodontitis is a major public health problem in India with a prevalence of 60-80%. If untreated it acts as a risk factor for systemic diseases. Data on anaerobic periodontal microflora in the Indian population is very scarce. Hence, this study was undertaken to know the nature of oral microbiota in chronic periodontitis in this region of India and also the semiquantitative study in pre- and post-treatment group and to determine antibiotic susceptibility pattern for aerobic isolates.
MATERIALS AND METHODS: The present study was conducted on 60 cases. Material was collected from the subgingival pockets in patients with chronic periodontitis attending the Periodontology, Outpatient Department. Clinical samples were transported to the laboratory in fluid thioglycollate medium. Initially Gram's stain and Fontana stains were done. Aerobic, anaerobic, and microaerophilic culture were put up. Antibiotic sensitivity test was done for aerobic isolates.
RESULTS: Sixty samples yielded 121 isolates of which 78.34% were polymicrobial, 11.66% were monomicrobial and oral commensals were grown in 10% cases. Out of 121 isolates 91.74% were anaerobic, 7.43% were aerobic and 0.83% were microaerophilic. Fusobacterium species was the most common isolate among anaerobes. Using "paired t-test" "P" value was significant indicating significant reduction in colony count after phase-I periodontal therapy.
CONCLUSION: This study has shown that anaerobic bacteria are important cause of chronic periodontitis, along with aerobes and microaerophilic organisms. Fusobacterium spp, Bacteroides fragilis, Porphyromonas spp and Prevotella intermedia are the most common anaerobic pathogens. Bacterial culture methods are still economical and gold standard.
Keywords: Aerobe; anaerobe; oral microbial flora; periodontitis; subgingival plaque
References
- J Clin Microbiol. 2003 Dec;41(12):5794-7 - PubMed
- J Clin Periodontol. 2002 Nov;29(11):1023-8 - PubMed
- Periodontol 2000. 1994 Jun;5:78-111 - PubMed
- Oral Microbiol Immunol. 1992 Feb;7(1):1-6 - PubMed
- Lancet. 1988 Mar 12;1(8585):594 - PubMed
- Clin Microbiol Infect. 2001 Apr;7(4):213-7 - PubMed
- J Periodontal Res. 1996 Apr;31(3):195-204 - PubMed
- Indian J Med Microbiol. 2003 Apr-Jun;21(2):111-4 - PubMed
- J Clin Periodontol. 2002;29 Suppl 3:136-59; discussion 160-2 - PubMed
- J Periodontol. 2000 May;71(5 Suppl):876-9 - PubMed
- J Clin Periodontol. 2008 Sep;35(8 Suppl):346-61 - PubMed
- J Periodontal Res. 1995 Jan;30(1):66-72 - PubMed
- J Med Microbiol. 2009 Oct;58(Pt 10):1269-74 - PubMed
- J Clin Periodontol. 1991 Nov;18(10):729-39 - PubMed
- J Clin Periodontol. 1998 Feb;25(2):134-44 - PubMed
- Ann Periodontol. 2003 Dec;8(1):115-81 - PubMed
- Adv Med Sci. 2006;51 Suppl 1:81-5 - PubMed
- J Oral Sci. 2004 Sep;46(3):157-61 - PubMed
- Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2003 Jun;95(6):655-9 - PubMed
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