brushing your teeth is a way for us to protect our teeth. If you don’t brush your teeth well, diseases such as periodontitis and gingivitis will come to your door. But brushing your teeth is also very particular. If the way is wrong, it will also cause irreparable damage to your teeth. Brushing teeth is our daily misunderstanding. 1: the water for brushing teeth is too cold.
generally speaking, there are not many requirements on the water temperature. If your teeth are good, warm water or cold water depends on your personal preference. However, for people with sensitive teeth, this is to increase the burden on already weak teeth. Not only that, it will also stimulate dentin and cause symptoms of oral discomfort. Therefore, in order to keep your teeth healthy, I suggest you brush your teeth with warm water.
Myth 2: brush your teeth too hard
some people think that only by brushing your teeth hard can you brush off the stains on your teeth, but this practice is very harmful to the tooth surface and gums. Therefore, when brushing your teeth, you should pay attention to proper action and don’t use too much force.
myth 3: brush your teeth horizontally
some people habitually brush their teeth horizontally, which is not clean. Only when you brush your teeth vertically can you clean up the residue in the gap between your teeth, and you can also avoid the injury of your gums by your toothbrush. So remember, the correct brushing method is to brush the upper teeth from top to bottom and the lower teeth from bottom to top.
Myth 4: some people don’t know what the psychology is. A toothbrush has been used since the beginning of the year. At the end of the year, the fine hairs of the toothbrush are almost gone and still haven’t been replaced. This is a very unsanitary practice. If you don’t change your toothbrush for a long time, it is most likely to breed bacteria. In this way, brushing your teeth will be meaningless in the long run. Generally speaking, the service life of the toothbrush is three months. If it exceeds three months, it should be replaced.
myth 5: brush your teeth only in the morning
brush your teeth only early but not late, which should be a common problem of many people. After eating all day, any food residue and bacteria will stay in the mouth. If you don’t brush it clean at night, these bacteria will breed in the gums and suffer from oral diseases such as periodontitis for a long time. How to improve this situation? You should brush your teeth sooner or later.
myth 6: brushing time is too short
some people brush their teeth very casually, which can be solved by brushing twice. This simply does not play a real role in cleaning teeth. Generally speaking, the normal brushing time should range from three minutes to five minutes. For people who are correcting their teeth, the time should be extended.
Basic components and functions of toothpaste
the basic components of toothpaste include friction agent, cleaning agent, wetting agent, adhesive, preservative, sweetener, fragrance, pigment and water. In addition, some health care preparations are added according to different purposes.
(1) friction agent can help clean and polish the tooth surface, make the tooth surface clean, smooth and shiny, and remove pigmentation and plaque through the mechanical friction during brushing. The ideal friction agent has strong cleaning ability, no damage to the tooth surface, provides high polishing, and can prevent pigmentation. The friction agent accounts for about 20% ~ 60% of the toothpaste. Commonly used friction agents include calcium carbonate, calcium pyrophosphate, calcium hydrogen phosphate, aluminum hydroxide, silicon dioxide, silicate, etc.
(2) cleaning agent, also known as foaming agent or surfactant, accounts for about 1% ~ 2%. It can reduce surface tension, penetrate and loosen surface deposits and pigments, emulsify soft dirt, be easily removed when brushing teeth, and help to produce the foaming effect loved by many people.
(3) humectant accounts for 20% ~ 40%. Its function is to keep moist, prevent hardening due to contact with air, and keep the dosage form stable. Glycerol (glycerol), polyethylene glycol and sorbitol are commonly used. These preparations need anti-corrosion to prevent microbial growth.
(4) adhesive accounts for about 1% ~ 2%. Its function is to prevent the separation of solid and liquid components during storage and maintain homogeneity. Organic hydrophilic colloids are commonly used, such as sodium carboxymethyl cellulose and synthetic cellulose derivatives. Organic colloids need to be antiseptic to prevent microbial growth.
(5) Preservatives are used to prevent bacterial growth, prolong storage life and make other components compatible. Alcohol, benzoate, dichlorophenol and trichlorohydroxyphenyl ether are commonly used, also known as yujiechun.
in addition, there are aromatics, sweeteners and pigments, which provide easily acceptable flavoring agents. These components account for about 2% ~ 3%, and water as solvent accounts for about 20% ~ 40%. The basic components of
toothpaste formula and their mutual compatibility and stability determine the basic function of toothpaste, that is, as an auxiliary agent for brushing teeth, the function of toothpaste can be divided into physical function, chemical function, biological function, etc. ① Physical action: refers to that the friction agent of toothpaste, with the cooperation of toothbrush, mechanically brushes away the attachments on the tooth surface, such as food residue, dental plaque and tartar. ② Chemical action: it is the detergent that foams, emulsifies and adsorbs the dirt on the tooth surface and in the mouth during brushing, so as to dissolve, decompose and neutralize the adhesion, so as to achieve the purpose of cleaning. ③ Biological function: mainly bacteriostasis. There are many bacteria in the mouth, many of which are pathogenic bacteria or conditional pathogenic bacteria. The effective components in toothpaste can inhibit the growth of oral bacteria or plaque and the formation of dental plaque, so as to maintain oral hygiene.