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Green tea and oral health illustration showing Japanese green tea, tea leaves and sugar-free chewing gum representing green tea catechin research.

Green Tea and Oral Health: What the Research Shows

Fresh BreathGeoffrey Speiser

Discover how green tea catechins have inspired decades of research into oral health, fresh breath and saliva. Learn why Japan has incorporated green tea into innovative oral care products and functional chewing gums.

Chewing gum pieces and toothpaste tube with ghost tooth enamel cross-section graphic on teal background, representing Japanese dental care for Ozempic dry mouth protection.

Ozempic Teeth: What GLP-1 Medications Are Doing to Your Mouth — and What Japanese Dentistry Recommends

CPP-ACPGeoffrey Speiser

GLP-1 medications like Ozempic and Wegovy are behind a dental side effect dentists are calling "Ozempic teeth" — rapid decay, sensitivity, and enamel erosion driven by reduced saliva. This article explains the mechanism, and why Japanese dental products recommended by the Japan Dental Association and approved under Japan's FOSHU system offer a more targeted response than general oral care advice.

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