Related Experiment Video
Updated: Jul 20, 2026

Impact of Common Fruit Juices and Toothbrushing on the Discoloration of Primary Teeth
Published on: March 27, 2026
[The effect of chewing gum containing tea polyphenol on salivary flow rate and pH]
Dan-ying Tao1, Xi-ping Feng, Chen-bin Shu
1Department of Preventive and Pediatric Dentistry, College of Stomatology, Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200011, China. taodanying@sina.com
Purpose:
To investigate the change of saliva flow rate and pH after chewing tea polyphenol gum.
Methods:
Saliva was collected before and after chewing tea polyphenol gum and the control gum. Both the salivary flow rate and pH value were measured and analyzed by one-way ANOVA and SNK.
Results:
The chewing gum significantly increased the flow rate as well as pH value of the saliva. The flow rate of the tested and control gum reached peak in the first minute. They were 3.15+/-1.05 and 3.30+/-0.87 ml respectively. There was no significant difference between the chewing gums.
Conclusion:
Chewing gum can increase the secretion and elevate the pH value of the saliva which benefits oral health care.
Related Concept Videos
Salivary Glands and Saliva
The Physiology of Taste
Physiology of the Gastrointestinal System I: Ingestion and Propulsion
The Oral Microbiota

