How does toothpaste affect the good bacteria in your mouth?

By Niamh Coffey, Senior Lecturer, Dentistry, RCSI University of Medicine and Health Sciences
Albert Leung, Professor and Head of School of Dentistry, Royal College of Surgeons in Ireland, RCSI University of Medicine and Health Sciences
Isabel Olegário, Senior Lecturer, Dentist, RCSI University of Medicine and Health Sciences

The goal of brushing one’s teeth is to have fresh breath and prevent cavities. But the effect of toothpaste on the complex ecosystem of bacteria in our mouths — the oral microbiome — is often overlooked.

Recent research has highlighted just how crucial the oral microbiome is for our overall health. A well-balanced microbiome helps regulate harmful…

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