Effect of Matcha Tea Versus Green Tea on Salivary pH and Flow Rate in High Caries Risk Patients

Effect of Matcha Tea Versus Green Tea on Salivary pH and Flow Rate in High Caries Risk Patients: A Randomized Controlled Trial

Objectives: To evaluate the effect of green tea versus matcha tea on the salivary pH in high caries risk patients. Materials and methods: Total number of high caries risk patients were randomized into two equal groups (n=). Group 1 (intervention group) was given Matcha Tea and Group 2 (control group) was given green tea. A portable digital pH meter was used to measure the salivary pH at baseline and after consumption tea immediately, after 5 mins and after 10 mins.

Study Overview

• Status: Completed
• Conditions: Salivary pH
• Intervention / Treatment: Procedure: Green Tea; Procedure: Matcha Tea

Detailed Description

Study Settings:

The study will be carried out at the Conservative Dentistry Department, Faculty of Dentistry, Cairo University in Egypt. Ethical approval will be taken from the Research Ethics Committee of the faculty of Dentistry, Cairo University. Signed informed consent will be signed each participant.

Recruitment:

Participants will be recruited from the patients' flow at the clinics of the Conservative Dentistry Department of Faculty of Dentistry, Cairo university.

Materials:

The Commercially available green tea and matcha tea for this study will be Lipton Tea. For preparation of green tea, 2 gr of green tea will be poured into 150 mL boiling water (100°C), after 3 minutes, it will be ready for drinking. As well as for matcha tea, 3 gr of green tea will be poured into 150 mL hot water (70°C), after 3 minutes, it will be ready drinking(7) .

Methods:

On the study day, all subjects will be instructed to brush their teeth 45 minutes after eating breakfast. Between 9-11 a.m., saliva samples will be collected through spitting method, one hour after breakfast and 15 minutes after brushing(7)

. For making the subjects blind to which tea they are drinking, the prepared tea will be served in the dark glasses. After drinking the green tea and matcha tea, every subject will be asked to bend his head forward and spit his saliva into laboratory tube every 60 seconds for 2-5 minutes. Samples will be collected immediately and 5 minutes after drinking tea(7)

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Aim of the study:

The aim of this study is to evaluate the effect of green tea versus matcha tea on the salivary pH in high caries risk patients.

Research question:

In high caries risk patients, will matcha tea have the same effect as green tea on salivary pH?

PICOTS:

P: High caries risk patients I: Matcha tea C: Green tea O: Salivary pH T: T1: baseline T2: immediately T3: 5 mins T4: 10 mins

• Study Type: Interventional
• Enrollment (Actual): 24
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Egypt
  • Cairo, Egypt, 12345
    • Faculty of Dentistry Cairo University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

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1. High caries risk patients

1. Satisfactory cooperative behavior
2. Age between 20-45 years old
3. Males or females
4. Subjects who signed informed consent

Exclusion Criteria:

• 1. Systemic diseases 2. Drug consumption during 3 past months 3. Salivary gland disorders 4. History of radiotherapy 5. Smoking

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: Green Tea; Green tea contains a significant amount of catechins, which are subgroup of flavonoids and play a vital role in maintaining health having strong bactericidal as well as antibacterial activity	Procedure: Green Tea; Green tea rich in catechins
Experimental: Matcha Tea; Matcha, powder of specially cultivated tea leaves, is gaining popularity in functional food and other food markets all over the world. Various studies have reported the difference in bioactive compounds in matcha as compared to green tea and other tea formulations	Procedure: Matcha Tea; Japanese tea rich in antioxidants and Catechins

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
salivary pH	pH of saliva to be measured	baseline before administration of tea, immediately after administration of tea, 5 minutes after administration of tea and 10 minutes after administration of tea

Collaborators and Investigators

• Sponsor: Cairo University

Study record dates

Study Major Dates

• Study Start (Actual): January 1, 2024
• Primary Completion (Actual): July 1, 2024
• Study Completion (Actual): July 1, 2024

Study Registration Dates

• First Submitted: July 10, 2024
• First Submitted That Met QC Criteria: July 15, 2024
• First Posted (Actual): July 17, 2024

Study Record Updates

• Last Update Posted (Actual): July 17, 2024
• Last Update Submitted That Met QC Criteria: July 15, 2024
• Last Verified: July 1, 2024

More Information

Terms related to this study

• Other Study ID Numbers: 28923

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No