If you like the aftertaste of food after brushing your teeth, or you just really want to brush them before breakfast, then no problem. If a person has breakfast at 11 in the morning, and you have to be at work at 9, then it is more expedient to brush your teeth. Much depends on the softness of the toothbrush and the abrasiveness of the toothpaste, if the brush is soft, and the paste is low-abrasive (gel), you can even brush it before or after, the main thing is to brush your teeth before going to bed
Lysozyme will not wash away anywhere. It is simply, say, an antibacterial enzyme that is present in saliva. There is saliva, there is lysozyme.
It's more of a pellicle. It is such a thin film of saliva glycoproteins that forms within 20-30 minutes after brushing your teeth (when brushing, we "remove" it with a brush).
Dental plaque is, simply put, an accumulation of microorganisms on the surface of the tooth, including pathogenic ones.
So these very bacteria cannot attach to a "bare" tooth. They are attached precisely to the pellicle. That is, the formation of dental plaque will begin in half an hour after brushing your teeth.
That is why there is a theory that you need to brush your teeth before eating. Allegedly, you "clean off" the pellicle and the MO has nowhere to attach.
However, the pellicle will still form over time (half an hour after cleansing), and during breakfast you just get carbohydrates (sugars), which are a substrate for cariogenic microorganisms. These LMCs ferment carbohydrates to form acids. The pH of the medium decreases. Conditions are created for the demineralization of enamel - the initial stage of caries (it is very difficult there, you can write a separate answer). It turns out that if we eat breakfast and do not remove these carbohydrates by cleaning, they will remain in the oral cavity as food for bacteria. So it's best to brush your teeth after eating. If you find it unpleasant to eat breakfast without brushing your teeth, you can rinse your mouth.
And do not forget that brushing your teeth is not enough, it is important to do it right.
Brushing your teeth before breakfast is a must. During the night, a huge amount of bacteria accumulates in the mouth. When we eat, we swallow them into the stomach, which is detrimental to our general condition. One of the special cases, for example, the ingestion of h. Pylori, leading to gastritis and ulcers. After breakfast, after 30 minutes, you must rinse your mouth and remove food debris.
Health to everyone.
It is necessary to brush your teeth before breakfast, because the toothpaste first cleans off all the harmful microflora on the teeth, and then creates a protective film on the enamel, so that in the future there will also be no microflora. Before going to bed, you also need to brush your teeth, since we first we will clean off all the microflora accumulated during the day, and then create the same protective film on the teeth, so that the microflora does not develop as well overnight as without brushing.
The gold standard is to brush your teeth after breakfast and before bed. And it is also necessary to brush between all teeth with a thread. If you brush your teeth before breakfast, then only to remove the biofilm of bacteria, and after a meal, thoroughly brush it. Before breakfast, it is good to brush your tongue with a brush, the taste will be stronger if the papillae of the tongue are not coated. And a thread at the first opportunity, but at least once a day.
Yes, but after breakfast, hygiene procedures are no less appropriate. Due to the relatively scarce salivation during sleep, favorable conditions are created for the formation of dental plaque (plaque), consisting of colonies of microbes living in the oral cavity and food debris. Look on the Internet for micrographs of dental plaque.
The purpose of cleaning BEFORE meals is to mechanically remove and chemically disrupt the harmony of life of this biofilm on the teeth as much as possible, the waste products of which contribute to the demineralization of dental hard tissues (acids bind calcium from hydroxyapatite crystals - substances that make up the inorganic part of the enamel), which leads to a cariogenic situation.
It takes about half an hour to re-form the colonies attached to the tooth.
The purpose of cleaning immediately AFTER breakfast is, in addition to the above purposes, depriving microbial colonies of additional nutrition, which could lead to an abundant release of acids if the teeth have not yet been thoroughly brushed. If there was a cleaning before a meal, then after a meal, a short cleaning or, in extreme cases, rinsing is enough to slow down the multiplication of microorganisms, depriving them of a nutrient substrate.
The digestive process begins in the mouth - and brushing your teeth just before breakfast can kill the microflora necessary for this. Most likely, this will interfere with digestion, or at least make it difficult and slow down; the body will spend more resources, and the stomach will humbly hint at you.
The most correct option is to rinse your mouth before breakfast to get the right taste during meals, get rid of detritus and dead epithelial cells that have accumulated overnight, and then thoroughly brush your teeth 30-60 minutes after breakfast.
If you brush your teeth immediately after eating, the natural component of teeth protection may suffer (for example, salivary lysozyme is washed off, which is especially active after eating and "works" in a film on tooth enamel).