The high prevalence of enteric bacteria and yeasts in root-filled teeth with chronic apical periodontitis was established. IKI improved the antimicrobial effect of the treatment.
The occurrence of Enterococcus faecalis in root canals of previously root filled teeth with apical periodontitis requiring retreatment was studied in Lithuanian patients. Twenty-five asymptomatic teeth were included in the study. Avoiding contamination microbiological samples were taken from the canals before and after preparation and irrigation with sodium hypochlorite and EDTA. Microbes were isolated from 20 of 25 teeth. E. faecalis was isolated from 14 of those 20 culture positive teeth, usually in pure culture or as a major component of the flora. Second samples taken after preparation revealed growth in 7 of the 20 teeth. Five of the seven cases were E. faecalis in pure culture. Isolation of E. faecalis was not related to the use of any particular root filling material in the original root filling. The results indicate that, rather than previous chemical treatment, it is the ecological conditions present in the incompletely filled root canal that are important for the presence of E. faecalis in these teeth.
It can be concluded that thin mucosal tissues may cause early crestal bone loss, but their thickening with allogenic membrane may significantly reduce bone resorption. Implants in naturally thick soft tissues experienced minor bone remodeling.
Objective. To describe a pattern of antibiotic prescription during root canal treatment procedures based on the reports of Lithuanian general dental practitioners. Materials and methods. Questionnaires concerning endodontic treatment were sent to all 2850 Lithuanian dental practitioners registered on the database of the Lithuanian Dental Chamber. Only the questions containing general information and individual decisions about antibiotic prescription for endodontic treatment were selected for the analysis. Results. The response rate was 53.8%. Of the 1532 responses, 1431 questionnaires received from licensed general dental practitioners were analyzed. More than 60% of the respondents reported prescribing antibiotics in cases of symptomatic apical periodontitis. Majority of the respondents (83.9%) reported symptomatic apical periodontitis with periostitis being a clear indication for the prescription of antibiotics. Nearly 2% of the respondents reported prescribing antibiotics in cases of symptomatic pulpitis. With an increasing duration of professional activity, an increase in the proportion of the respondents reporting prescription of antibiotics was observed. Amoxicillin was the most preferable antibiotic during endodontic treatment, followed by amoxicillin with clavulanic acid. An increase in reporting penicillin prescription and decline in prescribing amoxicillin and amoxicillin with clavulanic acid with regard to the increasing age of respondents was observed. Conclusions. Lithuanian dentists, particularly those with longer duration of professional activity, tended to exceed general recommendations for the antibiotics prescription in cases of endodontic infections. However, a trend toward prescription of broader spectrum antibiotics by younger dentists, compared with those with longer professional activity, was observed.
If cemented crown restoration is desired, undercuts should be reduced to a minimum for better removal of cement excess, irrespective of the diameter and location of the implants in the mouth.
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