The part of the tooth that is above the gum and is white is called the crown and the part that is under the gum and inside the jaw bone and acts as the base and anchor of the tooth is called the root.. To protect it, maintaining the gum is health.... This layer is light yellow and is usually covered by the gum and bone... Yes.... The dentin is softer than the tooth enamel and its color is opaque and yellowish.... Inside the dentin layer there are tunnels called tubules.... **Pulp:** The central part of the tooth, which contains blood vessels and nerves, and is the only living part of the tooth, which during the growth of the tooth goes to.... the pulp to provide the necessary nutrients for the growth... sorry tooth.... **Types of teeth in terms of age of development and overall structure** In general, all humans have 20 baby teeth and 32 permanent teeth.... Baby teeth begin to grow and protrude from the gums from about six months of age, and at about six years of age, the process of replacing them with permanent teeth begins... Of course, you should know that the growth of teeth begins long before you can see them in the mouth. Existence They have them and they remain until the age of six... between the ages of six and twelve, the teeth fall out... the teeth grow symmetrically, that is, the molars on the left side of the upper jaw grow at the same time as the teeth on the upper jaw on the right side... In general, teeth are divided into five main types in terms of structure and function: **Most of the front teeth:** Most people have eight teeth in the front of the mouth (upper and lower jaw)....we bite into food with these teeth....the front teeth are usually the first teeth to emerge from the gums....**Bite:** The canine teeth are the teeth adjacent to the front teeth, which in many cases have a sharper tip than the other teeth between the other teeth.. The upper canine teeth grow earlier than the lower canine teeth, but the order of their eruption is in the permanent teeth. It is the other way around and lower canine teeth grow from the gum from about 9 years old and upper canine teeth from 11 to 12 years old.. upper and lower jaw).... There are no small baby molars, and the first baby molar erupts from the gums at about 10 years of age, and the second tooth grows approximately one year after that.... These teeth replace the first and second molars.... **Large molars:** The large molars, also called molars, are designed for chewing and grinding food... between 12 to 28 months, the baby molars replace the first molars.. They .... Mullers There are four large permanent molars in number and they do not replace any milk teeth, but grow behind them at the end of the mouth... The first large permanent molar erupts at about 6 years of age (before the fall of the milk molars at the age of 11), while the second large permanent molar grows at about 13 to 13 years of age.... **Wisdom teeth:** The third molar also said: Yes, the third molar teeth are also placed in the last molar teeth.. Mouth and usually growth may Do it in the early 20s.... Some people don't get wisdom teeth at all...