No abstract available.
Apgar Score ; Periodontal Diseases

PURPOSE: Smokeless tobacco-based oral-use products like gutka are popular in India. Gutka usage leads to increased periodontal destruction and inflammation; however, the relevant mechanism remains unknown. This study aimed to elucidate the role of gutka in periodontitis by examining its effect on the levels of interleukin (IL) 1beta and IL-8 from the gingival crevicular fluid (GCF). METHODS: A total of 45 patients were enrolled in this study. Thirty patients with periodontitis (15 gutka chewers [GCP] and 15 nongutka chewers [NGC]) and 15 periodontally healthy controls (HC) were selected. The full-mouth plaque index (PI), gingival index (GI), probing depth (PD), clinical attachment level (CAL), and recession (RC) were recorded. The IL-1beta and IL-8 levels in the GCF of all subjects were assessed through an enzyme-linked immunosorbent assay (Quantikine). RESULTS: The IL-1beta and IL-8 levels were not significantly higher in the GCP group (IL-1beta, 369.01+/-273.44 microL; IL-8, 205.97+/-196.78 microL) as compared to those in the NGC group (IL-1beta, 195.57+/-96.85 microL; IL-8, 178.61+/-149.35 microL). More gingival RC and loss of attachment was seen among the GCP group (RC: 2.02+/-0.31, P=0.013; CAL: 4.60+/-0.56, P<0.001) than among the NGC group (RC, 1.21+/-1.15; CAL, 3.70+/-0.32); however, PD was deeper among the NGC subjects (P=0.002). PI and GI were significantly higher for the periodontitis group (P<0.001) when compared to the HC, but there was no difference among gutka chewers and non-chewers (P=0.22 and P=0.89). A positive correlation was found between the IL-8 levels and the duration of gutka chewing (r=-0.64, P<0.01). CONCLUSIONS: Gutka chewing leads to increased gingival RC and clinical loss of attachment. There was no effect seen in the proinflammatory cytokine levels in the GCF of gutka users.
Enzyme-Linked Immunosorbent Assay ; Gingival Crevicular Fluid ; Humans ; India ; Inflammation ; Interleukin-1beta* ; Interleukin-8 ; Interleukins ; Lobeline ; Mastication ; Periodontal Index ; Periodontitis* ; Tobacco, Smokeless

OBJECTIVES: Irrigants are imperative in endodontic therapy for the elimination of pathogens from the infected root canal. The present study compared the antimicrobial efficacy of octenidine dihydrochloride (OCT) with chlorhexidine (CHX) and sodium hypochlorite (NaOCl) against Staphylococcus epidermidis (S. epidermidis) for root canal disinfection. MATERIALS AND METHODS: The minimum inhibitory concentration (MIC) was obtained using serial dilution method. The agar diffusion method was then used to determine the zones of inhibition for each irrigant. Lastly, forty 6-mm dentin blocks were prepared from human mandibular premolars and inoculated with S. epidermidis. Samples were randomly divided into 4 groups of 10 blocks and irrigated for 3 minutes with saline (control), 2% CHX, 3% NaOCl, or 0.1% OCT. Dentin samples were then collected immediately for microbial analysis, including an analysis of colony-forming units (CFUs). RESULTS: The MICs of each tested irrigant were 0.05% for CHX, 0.25% for NaOCl, and 0.0125% for OCT. All tested irrigants showed concentration-dependent increase in zones of inhibition, and 3% NaOCl showed the largest zone of inhibition amongst all tested irrigants (p < 0.05). There were no significant differences among the CFU measurements of 2% CHX, 3% NaOCl, and 0.1% OCT showing complete elimination of S. epidermidis in all samples. CONCLUSIONS: This study showed that OCT was comparable to or even more effective than CHX and NaOCl, demonstrating antimicrobial activity at low concentrations against S. epidermidis.
Agar ; Anti-Bacterial Agents ; Bicuspid ; Chlorhexidine ; Dental Pulp Cavity ; Dentin ; Diffusion ; Disinfection ; Humans ; In Vitro Techniques ; Methods ; Microbial Sensitivity Tests ; Sodium Hypochlorite ; Staphylococcus epidermidis ; Staphylococcus ; Stem Cells

The introduction of the recent 2017 classification of periodontal diseases has been welcomed by the periodontal fraternity. The new classification has used available evidence as the backbone for its development. It has been felt by many experts that a good understanding is required for its practice. Towards this, a Malaysian PerioSymposium was organised in May 2019 to comprehend the classification and also to identify the right path towards its learning among undergraduate students of dentistry in Malaysia. The symposium was conducted and moderated by local and international experts. Apart from the few limitations identified, the new classification was recommended to be taught in the undergraduate dental programme across schools in Malaysia.