IRCT2017060334314N1 IRCT 2017-07-12 Vice chancellor for research, Mazandaran University of Medical Sciences comparison of therapeutic effect of green tea mouthwash in the treatment of stomatitis Comparison of therapeutic effect of green tea mouthwash and nystatin suspension in denture stomatitis 2017-06-26 anticipated 22 Complete https://irct.ir/trial/26244 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Other design features: The number of sampling is chosen by convenient sampling. After that, by random sampling, one group of samples are located in the first intervention group, another group of samples in the second intervention group. Each individual is assigned a number and then randomly chosen so the objectivity of the research is reached. 2-3 denture stomatitis. Intervention 1: The first intervention group use the green tea mouthwash 0.5% 4 times a day each time 15 milliliter about two and half table spoon. They should use it after washing their mouth and use it for one minute in their mouth. They should refrain from eating and drinking for about one hour. It should be used for two weeks. Intervention 2: The second intervention group use the nystatin suspension 1000000 u/l four times a day and each time use one milliliter about 20 drops. They should use it after washing their mouth and use it for one minute in their mouth. They should refrain from eating and drinking for about one hour. It should be used for two weeks.