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

NCT ID: NCT04615780

Last Updated: 2020-11-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

61 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-07-01

Study Completion Date

2020-06-01

Brief Summary

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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.

Detailed Description

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Conditions

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Oral Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

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.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Because of the nature of the intervention, only the data analyst was blinded to the meaning of the group assignment code.

Study Groups

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mouthwash with green tea group

The intervention group rinsed the mouth with 100 ml green tea solution for 60 seconds at least twice daily.

Group Type EXPERIMENTAL

mouthwash with green tea

Intervention Type OTHER

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.

mouthwash with tap water group

The control group rinsed the mouth with 100 ml tap water for 60 seconds at least twice daily.

Group Type PLACEBO_COMPARATOR

mouthwash with tap water group

Intervention Type OTHER

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.

Interventions

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mouthwash with green tea

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.

Intervention Type OTHER

mouthwash with tap water group

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.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* patients who were \> 20 years
* newly diagnosed with oral cancer by a physician
* just received oral surgery and follow-up with or without chemotherapy or radiation therapy.

Exclusion Criteria

* patients with mental illness
* an acute and a severe illness status
* no teeth in the whole mouth
* the ability of mouth opening less than 1 cm.
Minimum Eligible Age

20 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Chiayi Christian Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Ditmanson Medical Foundation Chia-Yi Christian Hospital

Chiayi City, , Taiwan

Site Status

Countries

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Taiwan

References

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Liao YC, Hsu LF, Hsieh LY, Luo YY. Effectiveness of green tea mouthwash for improving oral health status in oral cancer patients: A single-blind randomized controlled trial. Int J Nurs Stud. 2021 Sep;121:103985. doi: 10.1016/j.ijnurstu.2021.103985. Epub 2021 May 25.

Reference Type DERIVED
PMID: 34186380 (View on PubMed)

Other Identifiers

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10717

Identifier Type: -

Identifier Source: org_study_id