1, find a bamboo clip first, which is usually available at home.
2. Remove the spring clip and vice versa.
3. Dig a ditch where you draw red.
4. Draw the center line and make grooves.
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Introduction of toothpicks
A toothpick is a small piece of wood, plastic, bamboo, metal, bone or other substances, with at least one and sometimes two sharp points, which are usually inserted between teeth after meals to remove debris. Toothpicks are also used in festivals, to hold or pierce small appetizers (such as cheese pieces or olives) or as cocktail sticks, and can also be decorated with plastic trimmings or small paper umbrellas or flags.
history
As we all know, toothpicks are the oldest tooth cleaning tools in all cultures. The remains of ancient humans in Nishi, Demag, Georgia can be traced back to about 654.38+0.8 billion years ago, and the scars indicate that toothpicks were repeatedly used. The discovery of Neanderthal mandible in CovaForadà, Spain, proves that toothpicks can relieve toothache caused by periodontal disease and tooth wear.
Bronze toothpicks were found as funerary objects in prehistoric tombs in northern Italy and eastern Alps. 1986, researchers in Florida discovered the remains of ancient Native Americans dating back 7500 years, and found small grooves between many molars. One of the researchers, Justin Martin of Concordia University in Wisconsin, said that the enamel on teeth was very hard, so they had to use probes very strictly to make grooves.
Materials and manufacturing
There are examples of exquisite works of art made of silver in ancient times, and there are also examples made of frankincense wood by Romans. /kloc-in the 0/7th century, toothpicks were luxury goods, just like jewelry, with ingenious design and precious metals. Xxx toothpick making machine was developed by MarcSignorello in 1869. The other is the patent filed by SilasNoble and J.P.Cooley in 1872.
Wooden toothpicks are cut from birch. Logs are first spirally cut into thin slices, and then cut, chopped, milled and bleached (to reduce weight) into individual toothpicks. Nowadays, other methods of cleaning teeth are the first choice, such as dental floss, toothbrush and oral irrigator.