关键词: 根面敏感, 氟化泡沫, 氟保护漆, 视觉模拟评分法

Abstract:

Objective    To evaluate the efficacy of fluoride foam and fluoride varnish in treatment of root sensitivity after subgingival scaling and root planing.  Methods    Subjects were selected from patients complaining of moderate root sensitivity in at least one incisor 1 week after subgingival scaling and root planing. Totally 209 patients （503 teeth） were selected. Random stratified sampling was performed according to sex， age and number of teeth. All the subjects were divided into three groups：Group A-control group， using saline as placebo；Group B-fluoride varnish，Group C-fluoride foam. The improvement of root sensitivity was evaluated by a visual analogue scale （VAS） before and 1 week，and 4 weeks after desensitizing treatment. Length of clinical operation time was recorded for each patient.  Results    The VAS values were comparable for each group at baseline， with no significant statistical difference. After desensitizing treatment， significant differences in VAS scores between saline and fluoride varnish\foam group were   observed（P < 0.05），while there were no statistically significant differences between fluoride varnish and fluoride foam at the three examination time points. Fluoride varnish group had significantly longer average clinical operation time than other groups （P < 0.05）. Conclusion    Fluoride foam and fluoride varnish may be effective in decreasing root sensitivity after subgingival scaling and root planing. In consideration of clinical operation time， fluoride foam seems to be more applicable and less time-consuming.

Key words: root hypersensitivity, fluoride foam, fluoride varnish, visual analogue scale