Effects of 0.2% chlorhexidine spray applied once or twice daily on plaque accumulation and gingival inflammation in a geriatric population.
2003
Background/aims: Chlorhexidine (CHX) spray has proven to be an easily applicable method for the chemical control of plaque in elderly and handicapped patients. A randomized double-blind cross-over placebo-controlled trial was undertaken to compare the effects of 0.2% CHX spray applied once or twice daily on the plaque and gingival indexes in 13 institutionalized elderly patients. Method: The study subjects were randomly assigned to one of two groups. During the first 30-day period, one group received 0.2% chlorhexidine spray twice daily and the other received 0.2% CHX spray once daily plus placebo spray once daily. A washout period of 42 days then followed, after which the groups were interchanged and the process was repeated for another 30-day period. Plaque index and gingival index were determined at the beginning and end of each period. The patients continued with their usual oral hygiene practices throughout the study. Results: A significant reduction in plaque and gingival indexes was produced in both the groups. There were no significant differences in index scores between the groups. Conclusions: The results of the present study suggest that a single-daily application of 0.2% CHX spray is equally as effective in reducing plaque accumulation and gingival inflammation in institutionalized elderly patients as are two-daily applications of the same spray.
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