Thanks so much again!
Pediatric dentist know that a new adult molar erupts without this layer and it takes about a year for it to grow from proteins in saliva that mesh with healthy bacteria to form a healthy “biofilm”.
This pellicle/ healthy biofilm can defend teeth from damage of all kinds – as we eat, drink or eat hot and cold items , get subject to infections, and from other some natural toxins that otherwise can damage teeth.
Many things damage this layer besides peroxide – the list is long and includes long periods of dryness, acidity, certain leafy plants( spinach and kale) and even teas – since they contain a substance that is “toxic” to this layer.
You can think of this in this way: Imagine if you scrubbed or stripped your face of all its natural moisturizers. Would your face be healthy or red and raw? You know it would burn easily, get infected, flake and crack etc. Healthy skin is not scrubbed clean – it has a natural protective layer over it – a mix of healthy bacteria, oils and proteins that lie in defense on the surface.Once you “dissolve” this pellicle layer off your teeth – it will need to re-grow again.
You may be lucky and have the natural “ingredients” to reform it again – I don’t know. Most men are able to do this – most women cannot.
People with vegan diets or poor digestive system have a very tough time to regrow this layer – and this is why they can experience sensitive teeth, cavities and serious gum recession.
I have a chapter on whitening in my book Kiss Your Dentist Goodbye – which explains the other dangers of whitening, and asks why most of these dangers have been ignored by this money-making industry!