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Abstract

Objective:

An alcohol-free mouthwash of curcuminoids purified from the turmeric (Curcuma longa Linn.) rhizome was formulated using a cosolvent system, comprising chitosan and polyethylene glycol (PEG) 400, and determined for its efficacy and safety in management of denture stomatitis (DS) in comparison with a chlorhexidine (CHX) mouthwash.

Design:

A single-center, randomized, controlled parallel-arm trial was conducted.

Setting:

The study took place at the Faculty of Dentistry, Prince of Songkla University, Hat-Yai, Thailand, between June 2016 and June 2017.

Subjects:

Participants were 20 years old or older adults of both genders, using removable dentures, and with a confirmed diagnosis of DS from an oral medicine specialist.

Interventions:

A total of 30 patients were randomly assigned to 3 different interventions, including the chitosan–curcuminoid (CHI-CUR) mouthwash, CHX mouthwash, and a vehicle formulation comprising chitosan and PEG 400. Ten milliliters of each intervention was given to the patient to be used for 30 sec, three times a day at 8 am, 12 pm, and 4 pm, for 2 weeks.

Outcome measures:

Outcome measures included complete relief of erythematous lesions under the denture and reduction in the number of candida colonies present in the denture-fitting surface.

Results:

Eight of 10 patients (80%) using the CHI-CUR mouthwash had a complete response after the 2-week treatment course compared with 30% of patients using the CHX mouthwash (p < 0.05). Both interventions exerted comparable anticandida efficacy. No oral or systemic adverse events that could possibly be related to the use of mouthwash were documented.

Conclusions:

The finding indicated that an alcohol-free CHI-CUR mouthwash may serve as a safe and potential topical therapeutic alternative in treating generalized or candida-associated DS.

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Effectiveness of an Alcohol-Free Chitosan–Curcuminoid Mouthwash Compared with Chlorhexidine Mouthwash in Denture Stomatitis Treatment: A Randomized Trial