This study aims to evaluate, through a crossover, controlled, double-blind and randomized clinical trial, the efficacy of Phytolacca decandra in association or not with Melissa officinalis in the treatment of children with nocturnal bruxism. Children from 3 to 12 years old with nocturnal bruxism will be randomly allocated into different groups of treatment stage as follows: (1) placebo; (2) Phytolacca decandra; (3) Melissa officinalis; (4) Phytolacca decandra associated with Melissa officinalis. All children will participate to each clinical stage, with a period of 14 days of whashout. Children and the principal investigator will be masked to treatment. The efficacy will be evaluated through parents report about the absence of tooth clenching or grinding by children and electromiography exams. The secondary outcomes that will be evaluated are: trait anxiety and quality of life related to oral health.
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Evaluation of efficacy of Phytolacca decandra in association or not with Melissa officinalis in comparison of placebo in arresting nocturnal bruxism, by the use of a visual analog scale
Timeframe: During the period of treatments and washout : 168 days
Evaluation of the efficacy of Phytolacca decandra in association or not with Melissa officinalis in comparison of placebo in arresting nocturnal bruxism, by the electromiography analysis
Timeframe: Before to start all treatments (baseline) and after each treatment (every 30 days) up to 168 days