Choose the wrong tooth, 99% of people don't know! Take you out of the misunderstanding of electric toothbrushes

2020-01-08 18:31:33 0

The popularity of electric toothbrushes is getting higher and higher, but most of the originals related to electric toothbrushes are on the surface. Pseudo-concepts fabricated by various businesses have been widely promoted, and there is no reliable popular science article. This article will try to provide you with a scientific explanation by analyzing the characteristics of electric toothbrushes.


In order to explain more intuitively what I want to express, I specifically purchase this 1: 1 dental medical model.


However, this model is made according to the standard of neat teeth. In fact, many people still have tooth irregularities. There are more complicated requirements for toothbrushes and brush methods, and these conditions will be analyzed later.

The tooth surface is hard and smooth enamel. It is very convenient to ensure that the flat surface is clean. The real difficulty is in three positions, which are the three ABCs marked on the icon:

A: Between the teeth between adjacent teeth, the physical residue is easily hidden in these locations. It is difficult to penetrate these areas without a well-designed toothbrush. When encountering long-fiber food stuck here, the toothbrush is difficult to remove, and it is also supplemented with a toothpick. , Dental floss, red teeth and other equipment can be thoroughly cleaned.

B: The deep recesses in the middle of the occlusal surface of the molars are also the focus of dirt and dirt. For children, these gaps can be filled with resin through a "pit and groove closure" operation, but for adults, they must rely on the correct brushing method to keep clean. .

C: There is not a smooth transition between teeth and gums, but there is a groove, and the gingival groove will extend down to the depth of about 2mm along the teeth, and the gap is very small. This position is also the main area for dental plaque. Difficult to clean.


When we were young, parents, teachers, and television taught us to brush your teeth along the direction of the teeth, which is Roche's brushing method. This posture is most conducive to cleaning the teeth. After bending, the sulcus is basically skipped directly.

640 (1)

Now the mainstream recommended brushing method is Pap brushing method, also known as gingival sulcus method or horizontal tremor method. This is the method recommended by the American Dental Association. It is most effective to remove plaque near the gingival margin and in the gingival sulcus: choose a soft-bristled toothbrush and press the toothbrush at a 45 ° angle on the gum-tooth junction area, so that some of the bristles can enter the gingival sulcus. Make a small horizontal tremor in front and back direction 10 times in situ. When vibrating, the toothbrush moves only about 1mm, brushing 2 to 3 teeth at a time, and brushing all areas in sequence. The front row of teeth has no occlusal surface, but the inside is not flat, but is recessed in the shape of a "spoon", which is another area that is difficult to clean.

640 (2)

This area just brushes back and forth along the direction of the interdental wind, but a small distance tremor will make it easier to clean the sulcus location.

As for the occlusal surface, it is brushed along the direction of the teeth. It is also easier to clean the pits and grooves by shaking with a small distance.

Strict implementation of the pasteurization method has a very good cleaning effect, and it will not be much worse than an electric toothbrush. However, the method of high-speed trembling at a small distance requires high operation and is tiring, and it is difficult for most people to operate it perfectly. The natural high-frequency vibration method of the electric toothbrush solves this problem, allowing us to achieve the perfect brushing details in the easiest way, so the overall brushing effect can be greatly improved.