Tooth Eruption
Tooth eruption is the process in the development of the tooth during which the teeth enter the mouth and become visible. As discussed previously, there are two sets of teeth:
· Primary (Baby’s or Deciduous) teeth
· Permanent teeth
Primary (Baby’s or Deciduous) Teeth:
These are a set of twenty teeth and the eruption of this primary dentition occurs in the same order as the eruption of the permanent dentition. This process takes on an active eruption process, and this active eruption process of a primary tooth has many stages, which lead to the movement of the tooth. The formation of the primary dentition starts usually at the age of eight months and continues till the first permanent molars appear in the mouth, which usually happens around the age of six years. The primary teeth typically erupt in the following order:
1. Central incisor
2. Lateral incisor
3. First molar
4. Canine
5. Second molar
It is noticed that as the permanent tooth starts to develop, the primary tooth is shed. This process consists of the differentiation of osteoclasts where the latter are responsible for the resorption or removal of portions of the primary root of dentin and cementum resulting in the primary tooth to be lost. The process of shedding is an intermittent one because at the same time, the osteoblats differentiate to replace the resorbed bone.
· Primary (Baby’s or Deciduous) teeth
· Permanent teeth
Primary (Baby’s or Deciduous) Teeth:
These are a set of twenty teeth and the eruption of this primary dentition occurs in the same order as the eruption of the permanent dentition. This process takes on an active eruption process, and this active eruption process of a primary tooth has many stages, which lead to the movement of the tooth. The formation of the primary dentition starts usually at the age of eight months and continues till the first permanent molars appear in the mouth, which usually happens around the age of six years. The primary teeth typically erupt in the following order:
1. Central incisor
2. Lateral incisor
3. First molar
4. Canine
5. Second molar
It is noticed that as the permanent tooth starts to develop, the primary tooth is shed. This process consists of the differentiation of osteoclasts where the latter are responsible for the resorption or removal of portions of the primary root of dentin and cementum resulting in the primary tooth to be lost. The process of shedding is an intermittent one because at the same time, the osteoblats differentiate to replace the resorbed bone.
Permanent Teeth:
These consist of thirty-two permanent teeth, which are incisors, canines, pre-molars and molars.
Permanent Tooth Eruption:
This process begins when the last primary tooth is lost which is usually between the ages of eleven years and twelve years, and lasts for the rest of a person’s life or until all of the teeth are lost. During this process, the third molars (also known as wisdom teeth) are usually extracted because they tend to pain or decay. The process of eruption for the permanent teeth is the same as that for the primary teeth.
Permanent Tooth Eruption:
This process begins when the last primary tooth is lost which is usually between the ages of eleven years and twelve years, and lasts for the rest of a person’s life or until all of the teeth are lost. During this process, the third molars (also known as wisdom teeth) are usually extracted because they tend to pain or decay. The process of eruption for the permanent teeth is the same as that for the primary teeth.
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