BACKGROUND Smoking is a risk factor for periodontitis. To clarify the contribution of smoking to periodontitis, it is essential to assess the relationship between smoking and the subgingival microflora. The aim of this study was to gain an insight into the influence of smoking on the microflora of Japanese patients with periodontitis. METHODS Sixty-seven Japanese patients with chronic periodo...

The present investigation was designed with the aim of studying the microbiota of diabetic patients-both insulin dependent and noninsulin dependent and nondiabetic individuals. Each of the three groups had 15 patients, coming under the age group of 35 to 55 years and all having periodontitis. Even though the microbial flora are almost the same, specific microorganisms may not be predisposing ca...

Studies from the 1960s indicated that increased microbial diversity and a succession in the predominant bacterial species in plaque correlate with the appearance of gingival inflammation and the development of periodontal disease. In the past few years, molecular characterization of the microflora found in various sites of the oral cavity of different subjects has detected around 700 bacterial ...

t Inn 23 untreated adult periodontitis patients, the occurrence of Ö-lactamase producingg periodontal bacteria was determined. In addition to non-selective isolationn media, selective isolation and growth of ö-lactamase positive subgingival bacteriall species was carried out on blood agar plates supplemented with amoxicillinn and plates with amoxicillin + clavulanic acid. Porphyromonas gingival...

Marginal adaptation is one of most important criteria for long term clinical success of dental restorations [1]. The presence of marginal discrepancies exposes the luting agent to the oral environment. The larger the marginal discrepancy and the subsequent exposure of the dental luting agent to oral fluids, the more rapid the rate of cement dissolution and microleakage [2]. These marginal irreg...