Introduction: Gingivitis is one of the commonest problems faced by patients with fixed appliances (FA) as there is close relation between the appliances to gingival sulcus. Stichopus horrens (SH) is a sea cucumber from the Indo-Pacific that has medical healing properties which have been traditionally used.
Objective: To assess the effects of toothpaste containing aqueous SH extract on plaque-induced gingivitis following orthodontic bond-up and to identify the optimal concentration of SH.