Green Tea Mouthwash on the Oral Health Status in Oral Cancer Patients

All patients received instructions for using the Bass brushing method to brush their teeth with a soft small-headed toothbrush. The intervention group rinsed the mouth with 100 ml green tea solution for 60 seconds at least twice daily. For the preparation of the green tea mouthwash, green tea solution was made with 5 g (1 teaspoon) of green tea powder dissolved in 100 ml water to produce 5% green tea mouthwash, as described in a previous study (Eshghpour, et al., 2013). The green tea powder was ground from Camelia sinensis leaves and regularly provided by the researcher. The green tea solution is made for a single use and remade before rinsing each time. When patients return to the outpatient monthly, the researcher first confirms patients' compliance, then assists with solving difficulties and gives encouragement.

All patients received instructions for using the Bass brushing method to brush their teeth with a soft small-headed toothbrush. The control group rinsed the mouth with 100 ml tap water for 60 seconds at least twice daily.