The etiological structure, biological properties of causative agents of peri-implant mucositis
Keywords:bacteril drug resistance, antiseptics, mucositis, peri-implantitis
The purpose was to examine the peri-implant mucositis microflora and sensitivity of dominant pathogens to antibiotics and antiseptics.
Materials and methods. The study involved 43 patients with peri-implant mucositis. During the study 162 clinical strains of microorganisms were isolated and identified. Cultivation of clinical isolates was performed by the standard method, final identification was carried out with using bacteriological automatic analyzer Vitec – 2compact bioMérieux (France). Determination of sensitivity to antibiotics of pathogens was carried with disc-diffusion method; the study of sensitivity to antiseptics was carried by means of double serial dilutions method by the standard procedure approved by the Order № 167 of the Ministry of Public Health of Ukraine on “On Approval of Training Guidance “Assessment of the sensitivity of microorganisms to antibiotics”, dated by April, 5, 2007.
Results. It is The microflora of peri-implant area of patients with mucositis was revealed to consist of opportunistic species. Representatives of Streptococcus spp. and Staphylococcus spp. were dominating among them, although Kocuria spp., Enterobacter spp. and yeast-like fungi Candida spp. were detected quite common. Investigated clinical strains of microorganisms had different sensitivity to antibiotics. All cultures were sensitive to fluoroquinolones, but very significant number of them showed resistance to penicillins, macrolides and lincosamides. In turn, horosten, dekasan and chlorhexidine had powerful antimicrobial effect on dominant pathogens of periimplant mucositis in patients. Moreover, the effect of decametoxine-based antiseptics on some of them significantly exceeded the activity of chlorhexidine.
Conclusions. Microflora from peri-implant area of patients with peri-implant mucositis consists mainly of aerobic and facultative anaerobic microorganisms, belonging to normal oral microflora. Most of pathogens of mucositis obtaine resistance to antibiotics (penicillins, macrolides, lincosamides). Modern antiseptics horosten, decasan and chlorhexidine provide a strong antimicrobial activity against etiological pathogens of mucositis, that makes them promising for use in dental implantology.
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