Identification of Bacteria Involved in Periodontal Disease Using Molecular Biology Techniques

Abstract

Periodontal disease is progressive and episodic in nature, with tissue destruction resulting from the host response to bacterial antigens and irritants.This study aimed to evaluate the genotype of a certain group of pathogen agents. In order to to this we used a total of 45 patients with PAG included in the epidemiological analyzes with a mean age of 34.7 Four samples were collected from the subgingival plaque from each patient, a total of 224 samples of dental plaques were investigated. All samples were tested for the presence of Tannerella forsythensis, Porphyromonas gingivalis and Treponema denticola. We found that patients had a large number of pockets colonized by Tannerella forsythensis gingivalis (88.6%) Porphyromonas gingivalis (59%) and Aggregatibacter actinomycetemcomitans (25%). The data of this study support the evidence Tannerella forsythensis as a periodontopatogen and confirmed a strong association between Porphyromonas gingivalis and Tannerella forsythensis in aggressive periodontitis and support previous findings that generalized aggressive periodontitis are associated with more complex microbiota.

Comparative Study on the Degree of Bacterial Biofilm Formation of Dental Bridges Made from Three Types of Materials

“…Bollen et al [17] found that the range in surface roughness of different intraoral hard surfaces was found to be wide, and the impact of dental treatments on the surface roughness is material-dependent, some clinical techniques result in a ver y smooth surface (compressing of composites against matrices), whereas others made the surface rather rough. Hahnel et al [5] conducted research on the surface characterization of dental ceramic and the correlation of initial adherence of three oral streptococcal strains, but no correlation has been observed.…”

“…Furthermore, the white color of BioHPP frameworks provides a different esthetic approach than the conventional metal framework display does. Additional advantages of this polymer material are elimination of allergic reactions and metallic taste, high polishing qualities, low plaque affinity, and good wear resistance [16][17][18][19]. Dental ceramics are the restorative material of choice for indirect restorations, mainly due to their biocompatibility, low thermal conductivity, color stability, and aesthetics.…”

ELISA Evaluation of RANKL Levels in Gingival Fluid in Patients with Periodontitis and Occlusal Trauma

“…Periodontitis is a complex, multifactorial process, affected by bacterial plaque components and host defence mechanisms [1]. Inflammation of the periodontium can lead to the destruction of the ligament and the alveolar bone.…”

Flexible Acrylate Dentures versus Chromium Cobalt Removable Partial Dentures - a Viable Therapeutical Solution

“…The recent improvement of nylon thermoplastic resins presents these as an alternative material that could overcome the challenges of skeletal dentures with metallic bases [14]. They have been introduced as a superpolyamide in which the resin polymers are armed with glass fillers in order to produce a material that is more stable in nature and provides resistance to aging of the polymer [15][16][17][18]. This material is claimed to have greater resistance to wear, flexibility, fatigue strength, dimensional stability, wear characteristics and solvent resistance.…”