Scientific overview of electric toothbrushes

With the development of China's social economy and the improvement of people's living standards, oral health has been paid more and more attention. Plaque is the cause of many oral diseases, so daily oral health care must be able to effectively remove plaque, and brushing is a common way to remove plaque. As a new brush tool, electric toothbrush has gradually come into people's life. This paper analyzes the characteristics and practical significance of several electric toothbrushes in oral health care.


Dental caries and periodontal diseases are common and frequent diseases in human beings. However, due to their slow progress, they do not endanger patients' lives in general, so they are not easy to attract people's attention. However, after the disease progression, it is very harmful to human health and can seriously affect the quality of life. Therefore, active preventive measures are very necessary.


Scientific overview of electric toothbrushes


Plaque is one of the four major factors of caries and the initial factor of periodontal disease. The bacteria stick to the surfaces of the teeth and grow to form plaque. Bacteria can decompose sugars and produce acids, leading to demineralization of dental inorganic substances, decomposition of organic matter, and formation of caries; Various toxins and metabolites produced by bacteria can stimulate periodontal tissue to produce inflammation and further form periodontal disease. Therefore, it is very important to remove plaque in daily oral health care.


The world's first electric toothbrush was invented in 1954 by a Swiss doctor, Philippe g. wag. In recent years, with the economic development of our country, electric toothbrush has gradually come into the life of our people. The electric toothbrush is designed to make brushing simple, effective and comfortable.



1.Movement mode of electric toothbrush


At present, the common electric toothbrushes on the market are mainly divided into the following four sports modes:


(1) rotary motion: this kind of electric toothbrush is driven by a motor to make the brush head rotate in a single or alternating direction.

(2) staggered rotation: a number of clusters of bristles on the brush head of this kind of toothbrush, the adjacent clusters of bristles show a relative direction of rotation, increased Cleaning area and cleaning power.

(3) acoustic vibration: this kind of toothbrush is driven by a high-speed motor, forming a high-frequency swing perpendicular to the toothbrush handle, but the motion range is small, generally

Is about 5mm.

(4) compound motion: this kind of toothbrush combines circular rotation and high-frequency oscillation.

Scientific overview of electric toothbrushes


Safety of electric toothbrush

In the traditional brushing way, the brushing force and direction are difficult to control, while the electric toothbrush head automatically moves, the force is uniform, easy to control

To make the brushing process simple and effective. The systematic review published in the Cochraaae Library showed that the use of electric toothbrushes and soft oral cavity group

There was no significant causal relationship between texture injuries. In addition, Schemehorn et al. found through in vitro experiments that using an electric toothbrush causes more problems than manual brushing

The dentin has less wear and tear. Therefore, it can be seen that the risk of soft and hard tissue damage will not be increased in clinical practice, and the safety performance of electric toothbrush is reliable


Scientific overview of electric toothbrushes


3 Comparison between electric toothbrush and manual toothbrush


3.1 comparison of comfort


Electric toothbrushes work by vibrating or rotating, touching more surfaces and working more times per unit of time

Fruit is better. According to the Cochrane Library systematic review literature, a total of 42 trials including 3,855 subjects were systematically reviewed

In this study, results showed that compared with manual toothbrushes, left-and-right electric toothbrushes had short-term effects on plaque removal and gingivitis reduction

There was a significant advantage in the gingival index after 12 weeks of study. While taking other exercise mode electric toothbrush effect

No better than a manual toothbrush.

3.2 comparison of plaque clearing ability

Improper brushing can lead to local gum damage, redness, pain and even bleeding. Electric toothbrushes, on the other hand, have a small range of motion with subtle vibrations


It can massage gingiva and make it comfortable to use. In Saxer et al. 's study, the periodontal status of 40 patients receiving periodontal support was studied


Compared with manual brushing, the results show that the use of electric toothbrush can better improve the periodontal status of adjacent areas, with significant results


Statistical differences.

Scientific overview of electric toothbrushes

4 Precautions for use of electric toothbrush

(1) do not use electric toothbrush with excessive force to avoid local damage.

(2) electric toothbrush is not recommended for children. Because children do not have enough control over the toothbrush, it may stay in a certain place for a long tim

Damage to gums or cheeks.

(3) the brush head of the electric toothbrush is a consumable product, which is easy to wear and breed bacteria after long-term use. It needs to be replaced after three months of use.

(4) if any loose or damaged toothbrush parts are found, please stop using them immediately to avoid damage.

Scientific overview of electric toothbrushes