Objectives: To evaluate the effectiveness of green tea mouthwash on the oral health status (OHS) in oral cancer patients undergoing anticancer treatment. Materials and methods: This was a prospective, single-blind, randomized, controlled trial. Patients were randomly assigned to 2 groups: mouthwash with green tea (intervention) group or tap water (control) group. The intervention group rinsed the mouth with 100 ml green tea solution for 60 seconds at least twice daily, and the control group rinsed the mouth with 100 ml tap water for 60 seconds at least twice daily. The primary outcome was OHS, which was evaluated according to the Oral Assessment Guide and measured at seven time points by the same researcher. Time 0 (T0) corresponded to baseline, and Time 1-6 (T1-T6) corresponded to monthly outpatient follow-ups until six months.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
61
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.
Ditmanson Medical Foundation Chia-Yi Christian Hospital
Chiayi City, Taiwan
oral health status (OHS)
Patients' oral health status (OHS) was assessed according to the Oral Assessment Guide (OAG) by the same researcher. The OAG consists of eight items: voice, swallow, lips, tongue, saliva, mucous membranes, gingiva and teeth or dentures. Each item is rated by a grading of 1 (normal) to 3 (severe). Sum scores between 8-24 points and a higher score indicate poorer OHS.
Time frame: Time 0 (T0) corresponded to baseline
oral health status (OHS)
Patients' oral health status (OHS) was assessed according to the Oral Assessment Guide (OAG) by the same researcher. The OAG consists of eight items: voice, swallow, lips, tongue, saliva, mucous membranes, gingiva and teeth or dentures. Each item is rated by a grading of 1 (normal) to 3 (severe). Sum scores between 8-24 points and a higher score indicate poorer OHS.
Time frame: Time 1(T1) corresponded to the 1 month after recruitment.
oral health status (OHS)
Patients' oral health status (OHS) was assessed according to the Oral Assessment Guide (OAG) by the same researcher. The OAG consists of eight items: voice, swallow, lips, tongue, saliva, mucous membranes, gingiva and teeth or dentures. Each item is rated by a grading of 1 (normal) to 3 (severe). Sum scores between 8-24 points and a higher score indicate poorer OHS.
Time frame: Time 2(T2) corresponded to the 2nd month after recruitment.
oral health status (OHS)
Patients' oral health status (OHS) was assessed according to the Oral Assessment Guide (OAG) by the same researcher. The OAG consists of eight items: voice, swallow, lips, tongue, saliva, mucous membranes, gingiva and teeth or dentures. Each item is rated by a grading of 1 (normal) to 3 (severe). Sum scores between 8-24 points and a higher score indicate poorer OHS.
Time frame: Time 3(T3) corresponded to the 3th month after recruitment.
oral health status (OHS)
Patients' oral health status (OHS) was assessed according to the Oral Assessment Guide (OAG) by the same researcher. The OAG consists of eight items: voice, swallow, lips, tongue, saliva, mucous membranes, gingiva and teeth or dentures. Each item is rated by a grading of 1 (normal) to 3 (severe). Sum scores between 8-24 points and a higher score indicate poorer OHS.
Time frame: Time 4(T4) corresponded to the 4th month after recruitment.
oral health status (OHS)
Patients' oral health status (OHS) was assessed according to the Oral Assessment Guide (OAG) by the same researcher. The OAG consists of eight items: voice, swallow, lips, tongue, saliva, mucous membranes, gingiva and teeth or dentures. Each item is rated by a grading of 1 (normal) to 3 (severe). Sum scores between 8-24 points and a higher score indicate poorer OHS.
Time frame: Time 5(T5) corresponded to the 5th month after recruitment.
oral health status (OHS)
Patients' oral health status (OHS) was assessed according to the Oral Assessment Guide (OAG) by the same researcher. The OAG consists of eight items: voice, swallow, lips, tongue, saliva, mucous membranes, gingiva and teeth or dentures. Each item is rated by a grading of 1 (normal) to 3 (severe). Sum scores between 8-24 points and a higher score indicate poorer OHS.
Time frame: Time 6(T6) corresponded to the 6th month after recruitment.
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