The purpose of this study was to determine the prevalence of enteric bacteria and yeasts in biofilm of 80 HIV-positive patients with plaque-associated gingivitis or necrotizing periodontitis. Patients were subjected to extra, intra oral and radiographic examinations. The oral hygiene, bleeding on probing, gingival conditions, and attachment loss were evaluated. Clinical specimens were collected from gingival crevices or periodontal pockets, transferred to VMGA III, diluted and transferred to Sabouraud Dextrose agar with 100 μg/ml of chloramphenicol, peptone water, EVA broth, EMB agar, SS agar, Bile esculin agar and Brilliant green agar. Isolation of yeasts was carried out at room temperature, for 3-7 days; and for the isolation of enteric microorganisms plates were incubated at 37°C, for 24-48 h. The yeasts identification was performed according to the carbon and nitrogen assimilation, fermentation of carbohydrates and germ tube formation. Bacteria were identified according to their colonial and cellular morphologies and biochemical tests. Yeasts were identified as Candida albicans and its occurrence was more common in patients with CD4+ below 200/mm(3) and was affected by the extension of periodontal involvement (P = 0.0345). Enteric bacteria recovered from clinical specimens were identified as Enterobacter sakazakii, Enterobacter cloacae, Serratia liquefaciens, Klebsiella oxytoca and Enterococcus sp. Enterobacteriaceae and enterococci were detected in 32.5% of clinical samples from patients with necrotizing periodontitis. In conclusion, non-oral pathogenic bacteria and C. albicans were more prevalent in periodontal sites of HIV-positive patients with necrotizing periodontitis and chronic gingivitis.
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http://dx.doi.org/10.1590/S1517-838220080002000011 | DOI Listing |
Eur J Dent
December 2024
Division of Preventive Dentistry, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.
Objectives: This article investigates the changes in blood-based biomarkers associated with mild cognitive impairment (MCI) risk in type 2 diabetic patients following local antibiotic periodontal treatment.
Materials And Methods: A secondary analysis of data from a 24-week randomized controlled trial was conducted, involving 27 patients with type 2 diabetes mellitus and periodontitis. Participants received periodontal treatment biweekly from baseline until the 6th week of the study.
Immunopharmacol Immunotoxicol
January 2025
Department of Regenerative Dental Medicine, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Tokushima, Japan.
Objectives: Periodontal disease is a chronic inflammatory disease caused by periodontopathogenic bacteria, and its progression leads to periodontal tissue destruction and tooth loss. Zerumbone is a bioactive substance found in ginger () and is known to have bioactive effects such as anticancer effects, but there have been no attempts to use it for periodontitis treatment. In addition, there have been no reports examining its effects on periodontal tissue component cells.
View Article and Find Full Text PDFJ Indian Soc Periodontol
December 2024
Department of Oral Biology, Faculty of Dentistry, Universitas Indonesia, Jakarta Pusat, Indonesia.
is implicated in periodontitis, a chronic inflammatory disease that destroys the periodontal tissue and alveolar bone due to host-microbe dysbiosis. This study focuses on understanding how contributes to bone destruction in periodontitis. The literature search was conducted using PubMed and Scopus databases based on Preferred Reporting Items for Systematic Review and Meta-Analyses guidelines by entering preselected keyword combinations of inclusion and exclusion criteria.
View Article and Find Full Text PDFInt J Dent
December 2024
Department of Endodontics, Shahid Beheshti University of Medical Sciences Dental School, Tehran, Iran.
The successful management of necrotic pulps and apical periodontitis poses a tough challenge in endodontic therapy, as it involves addressing compromised tooth vitality and microbial invasion of root canal systems. Failure to effectively treat these conditions can lead to persistent infection and severe patient discomfort. The efficacy of double antibiotic paste (DAP), a mixture of ciprofloxacin and metronidazole, was evaluated and compared to calcium hydroxide (CH) by assessing radiographic and clinical outcomes of nonsurgical endodontic treatment in cases with necrotic pulps and the presence of apical periodontitis.
View Article and Find Full Text PDFOpen Vet J
November 2024
Department of Basic Oral Medical Sciences, College of Dentistry, Qassim University, Buraydah, Saudi Arabia.
Background: Regenerative endodontics' primary objective is to establish a favorable environment in the root canal by removing infection, providing a sturdy scaffold, and sealing the apical end of the tooth tightly. These actions should promote pulp regeneration and root development.
Aim: This study evaluated histologically the regenerative potential of injectable hyaluronic acid (HA) hydrogel or collagen with blood clot as scaffolds during revascularization of immature necrotic dog's teeth.
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