Deciduous teeth first teeth seen in the mouth are the mandibular centrals and the last are the maxillary second molars. The primary teeth are made up of central incisors, lateral incisors, canines, first molars, and secondary molars; there is one in each quadrant, making a total of four of each tooth. All of these are gradually replaced with a permanent counterpart except for the primary first and second molars; they are replaced by premolars. The replacement of primary teeth begins around age six, when the permanent teeth start to appear in the mouth, resulting in mixed dentition. The erupting permanent teeth cause
Teeth cleaning twig Teeth cleaning twig A teeth cleaning twig or datun is a tool made from a twig from a tree. It can help to prevent tooth decay and gum disease. Chew sticks are twigs or roots of certain plants that are chewed until one end is frayed. This end can be used to brush against the teeth, while the other end can be used as a toothpick. Most commonly plants are used that have a high content of tannins (astringent and antibacterial) or other compounds that benefit the health of gums and teeth. The earliest chew sticks have been dated to