Question

Сроооочно Строение зубов

Answer 1

Смотря какие зубы.
У малышей зубов нет. но они появляются ближе к году и далее. молочные зубы состоят из корня. если ты видела зуб, наверно и корень видела и сам зуб-кость.
уже коренные зубы состоят из нерва, специальныз каналов, еще более мелкиз нервов и сам зуб

Answer 2

Structure of Teeth

The structure of teeth is complex and consists of different layers and components that work together to perform various functions. Here is a detailed explanation of the structure of teeth:

1. Tooth Layers: - Enamel: The outermost layer of the tooth is called enamel. It is the hardest substance in the human body and protects the underlying layers of the tooth. Enamel is composed mainly of minerals, primarily hydroxyapatite crystals. It is highly mineralized and does not contain any living cells. - Dentin: Below the enamel lies the dentin, which makes up the majority of the tooth structure. Dentin is a hard, calcified tissue that provides support to the enamel and forms the bulk of the tooth. It is less mineralized than enamel and contains microscopic tubules that transmit sensations like temperature and pain to the nerves inside the tooth. - Pulp: The innermost layer of the tooth is called the pulp. It is a soft, living tissue that contains blood vessels, nerves, and connective tissue. The pulp provides nourishment to the tooth and is responsible for transmitting sensory information. It also plays a role in the formation and repair of dentin.

2. Tooth Components: - Crown: The crown is the visible part of the tooth that is above the gum line. It is covered by enamel and is responsible for biting and chewing food. - Root: The root is the part of the tooth that is embedded in the jawbone. It anchors the tooth in place and provides stability. - Cementum: Cementum is a thin layer of hard tissue that covers the root of the tooth. It helps to attach the tooth to the surrounding bone and provides protection to the root. - Periodontal Ligament: The periodontal ligament is a group of fibers that attach the tooth to the surrounding bone. It acts as a shock absorber and allows for slight movement of the tooth during chewing. - Gingiva: The gingiva, also known as the gums, is the soft tissue that surrounds the teeth and covers the jawbone. It helps to protect the underlying structures and provides a seal around the teeth.

3. Tooth Types: - Incisors: Incisors are the front teeth in the mouth and are used for cutting and biting food. - Canines: Canines, also known as cuspids, are the sharp, pointed teeth located on either side of the incisors. They are used for tearing and grasping food. - Premolars: Premolars, also called bicuspids, are located behind the canines and are used for crushing and grinding food. - Molars: Molars are the largest teeth in the mouth and are located at the back. They have a large, flat surface and are used for grinding and chewing food.

In summary, the structure of teeth consists of different layers, including enamel, dentin, and pulp. Teeth also have various components, such as the crown, root, cementum, periodontal ligament, and gingiva. Different types of teeth, including incisors, canines, premolars, and molars, perform different functions in the process of biting, tearing, and grinding food