Toothbrush is closely related to our daily life. The first thing in the morning is to brush your teeth. How to choose a toothbrush in our daily life? It's better to change it every few months?
How many months is it better to change the toothbrush?
Expert advice: every three or four months to replace a new toothbrush, especially when the body immunity is poor, more often to change the toothbrush, to help prevent infection. Because children like to bite their bristles, they change their toothbrushes more frequently.
Three signals remind you: it's time to change your toothbrush
Darker root color
This is a sign of more dirt build-up. The dirt at the root of the bristle will accumulate slowly, which is one of the reasons for the growth of bacteria. Even after each use, cleaning can not completely prevent it, so it should be replaced in time.
Most brush tips are soft
It indicates that the wear degree is large and the teeth can not be cleaned well.
The distance between bristles widens obviously
Generally, the bristles are densely arranged. If the distance between the bristles is significantly widened, the dirt is more likely to remain at the root of the toothbrush. It is better to replace it with a new one.
What kind of toothbrush is better Keep your teeth clean and your mouth healthy. How to choose a good toothbrush for yourself? Experts teach you to choose a good toothbrush in five steps.
Brush head short and narrow
The short and narrow brush head can rotate flexibly in the mouth, and can reach all parts of the teeth (especially the side of the molar near the cheek), so it is not easy to leave a dead angle.
According to the American Dental Association, the adult toothbrush should be about 2.54-3.18 cm long and 0.79-0.95 cm wide.
Moderate soft and hard bristles
Many people think that the softer the toothbrush material, the better, so it is not easy to hurt the gums.
In fact, when brushing with a soft toothbrush, the strength is not easy to master. If you brush too lightly, the food residue and bacteria in your mouth will not be easily removed. If you use too much force, your gums will be damaged and the service life of the toothbrush will be shortened.
Although the hard bristle toothbrush has good cleaning effect on teeth, it also has great wear and damage on teeth. Therefore, it is recommended to choose a toothbrush with medium soft and hard bristles.
Brush tip treated
If the bristles are not smooth after cutting, it is easy to cause injury due to too sharp. The sharpened toothbrush with rounded brush tip can prevent this kind of injury and has stronger protective effect on gingiva.
Reasonable arrangement of bristles
According to the suggestion of American Dental Association, the reasonable arrangement of bristles should be 2-4 rows, 5-12 bundles in each row.
In addition, each bundle is generally 10-12mm long and 3-4mm wide, with a certain distance between the bundles. In this way, when brushing teeth, it is not only beneficial to effectively remove dental plaque, but also convenient to clean the toothbrush itself.
The brush handle has a antiskid design and has a certain angle with the brush head
A good toothbrush, the handle should be easy to hold, feel comfortable, and has a non slip design.
In addition, the handle of the toothbrush should match the shape of the hand. At present, there are two types of straight-line type and angle type on the market.
Clinical research shows that when using the linear type, the force is not easy to master, and the angle type is easier to reach the plaque removal area. Generally, the angle between the handle and the brush head should be 17 ~ 20 degrees.