An efficient toothbrush
A toothbrush and high-efficiency technology, applied in the field of daily necessities, can solve problems such as affecting oral health, food residues easily breed bacteria, etc.
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Embodiment approach 1
[0029] The tooth model of the bionic head model in the Department of Stomatology was used for experiments. Generally, food residues that can plug teeth are mostly filamentous food fiber tissues. Since the cotton silk of pp cotton has similar properties to food fiber, for example, they are all silk. Therefore, in the experiment, PP cotton was used to simulate food fiber, and the PP cotton of the "Huiweishi" brand was twisted into fine cotton filaments with a diameter in the range of 0.73mm-1.35mm and a length in the range of 1.5mm-3.5mm. Silk is stuck in the gap between the teeth of the tooth model, and a fine cotton thread is stuck in each gap of the teeth, because people have a total of 32 teeth (comprising wisdom teeth), so a total of 32-2=30 fine cotton threads are stuck. Use these fine cotton strands to simulate food residue between teeth. The quantity ratio of the soft bristles 2 to the medium bristles 1 is 4:1, the angle between the roots of the medium bristles (1) and ...
Embodiment approach 2
[0047] The above experiments can only prove that when α is 75°, and when β is 45° and 60°, the rejection rate is relatively high. It cannot be proved that when α is 75° and the angle of β is 45°--60°, the rejection rate is relatively high. Therefore, when the α angle is 75°, the β angles are respectively 50°, 55°, and 60°. Since the experiment of taking the angle of β at 45° and 60° has already been done, the angle of α in the experimental plan starts from 50° and takes a value every 5°, and the ratio of soft hair 2 to medium bristle 1 is equal to 4:1. The experimental data are shown in Table 2-1.
[0048] table 2-1
[0049] α
[0050] From Table 1-1, Table 1-2, Table 1-3, Table 1-4, Table 1-5 and Table 2-1, it can be seen that when α is 75°, the angle of β is 45°--60° , the rejection rate is relatively high.
Embodiment approach 3
[0052] The tooth model of the stomatology bionic head model is used for the experiment. The tooth model is the tooth model of the ENOVO brand stomatology bionic head model. When α is 75° and β is 55°, the ratio of the number of soft hairs 2 to medium hard hairs 1 Take 1:1, 2:1, 3:1, 4:1 and 5:1 respectively, and after 10 hours of continuous brushing, use the Mitutoyo brand TR-200 surface roughness measuring instrument to measure the roughness of the tooth surface Degree, that is, the measured parameter Ra value, the unit is μm. The experimental data are shown in Table 3-1.
[0053] Table 3-1
[0054] α
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