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Table 1 Description of interventions

From: Evaluation of Salvadora persica L. and green tea anti-plaque effect: a randomized controlled crossover clinical trial

Interventions CHX Test (formulation) Placebo
Ingredients & concentration Chlorhexidine gluconate 0.12% (w/v) (active ingredient) Combination of leafs of Camellia sinensis var. assamica (0.25 mg) + roots of Salvadora persica L. (7.82 mg) extracts/1 ml distilled water Distilled water
Dosage/ Regimen 15 ml twice daily, rinse for 30 s, refrain from eating or drinking for 30 min 15 ml twice daily, rinse for 30 s, refrain from eating or drinking for 30 min 15 ml twice daily, rinse for 30 s, refrain from eating or drinking for 30 min
Duration 24 h 24 h 24 h
Color Light blue Light yellow Colorless
Preparation Used commercial oral rinse (Oradex™) Prepared in Balai Ungku Aziz Research Laboratory (BUARL), Faculty of Dentistry University of Malaya Prepared in Balai Ungku Aziz Research Laboratory (BUARL), Faculty of Dentistry University of Malaya