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

NCT ID: NCT06504706

Last Updated: 2024-07-17

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 24 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2024-01-01
• Study Completion Date: 2024-07-01

Brief Summary

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.

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

Conditions

Salivary pH

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: PREVENTION
• Blinding Strategy: DOUBLE

Study Groups

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

Group Type: ACTIVE_COMPARATOR

Green Tea

Intervention Type: PROCEDURE

Green tea rich in catechins

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

Group Type: EXPERIMENTAL

Matcha Tea

Intervention Type: PROCEDURE

Japanese tea rich in antioxidants and Catechins

Interventions

Matcha Tea

Japanese tea rich in antioxidants and Catechins

Intervention Type: PROCEDURE

Green Tea

Green tea rich in catechins

Intervention Type: PROCEDURE

Eligibility Criteria

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

• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Cairo University

OTHER

Sponsor Role: lead

Responsible Party

Hadier Mahmoud Ahmed Gad

Lecturer

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Faculty of Dentistry Cairo University

Cairo, , Egypt

Countries

Egypt

Other Identifiers

28923

Identifier Type: -

Identifier Source: org_study_id