Bacterial distribution and surveillance of drug resistance in patients with peri-implant bacterial infection / 国际检验医学杂志

ABSTRACT

Objective To investigate the bacterial distribution and drug resistance in patients with peri-implant bacterial infec-tion.Methods A total of 81 cases of patients with peri-implant bacterial infection were diagnosed from December 2014 to December 2016.The bottom of gingival sulcus specimens was collected and bacteria were isolated and cultured.The bacteria were identified by French company's VITEK23 bioMerieux identification system,and chemosensitivity test were carried out by disc diffusion method. Results 94 strains from 81 patients were detected,of which 75 strains were anaerobic bacteria(79.79%)and 19 strains were aero-bic bacteria(20.21%).The anaerobic bacteria distribution was streptococcus oralis,prevotella intermedia,and porphyromonas gingi-valis;the resistance rates of anaerobic bacteria to levofloxacin,benzyl penicillin and clindamycin were relatively higher.Drug resist-ance rate of streptococcus oralis to levofloxacin,benzyl penicillin and clindamycin were 82.05%,89.74% and 94.87% respectively;drug resistance rate of prevotella intermedia to levofloxacin,benzyl penicillin and clindamycin were 85.00%,75.00% and 100.00%respectively;drug resistance rate of porphyromonas gingivalis to levofloxacin,benzyl penicillin and clindamycin were 87.50%, 81.25% and 87.50% respectively.Conclusion Pathogen in patients with peri-implant bacterial infection mainly was anaerobic bac-teria,which have a high drug resistance rate to levofloxacin,benzyl penicillin and clindamycin.