The chemistry of how teeth decay and recover, and the materials that help them rebuild, explained through dentistry's shift from drilling and filling to prevention and minimal intervention. Conversations go below the headline: why a slow release of fluoride grows acid-resistant fluorapatite while a burst forms calcium fluoride, how bioactive glasses release calcium, phosphate and other ions, how formulations are tested, and how better materials reach the clinic.

With Dr Saroash Shahid, Reader in Dental Biomaterials at the Institute of Dentistry, Queen Mary University of London. For dental students, hygienists, therapists, dentists, dental technicians, industry and public health professionals, regulators, and curious listeners.

Latest Episodes

What one drop of SDF turns into on a decayed tooth

Silver diamine fluoride arrives as one clear drop of silver, fluoride and ammonia. On decayed dentine, Saroash explains, it reacts with saliva and light to form a mixe...

Fluoride varnish: why formulation matters more than concentration

Saroash explains why fluoride varnishes do not all behave the same way. Fluoride reacts readily with calcium in saliva, so a fast burst mostly forms calcium fluoride. ...

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