Row of teeth (Dentition)

Dentition: Everything you need to know about teeth

Teeth play an important role in our lives, helping us speak, chew and smile. They are also an important part of our health. Dental alignment is the arrangement of teeth in the mouth, which may vary depending on the age of the person. In this article we will look at the different types of dentition, including the primary dentition, mixed dentition, and permanent dentition.

Primary dentition

The primary dentition is the first set of teeth that children develop. It consists of 20 teeth - 10 in the upper jaw and 10 in the lower jaw. This dentition includes four types of teeth: incisors, canines, small molars and large molars.

Group dental formula of the primary dentition: 2.0.1.2. 2.1.0.2. 2.0.1.2. 2.1.0.2. The numerator indicates the number of teeth in the upper jaw, and the denominator indicates the number of teeth in the lower jaw. The first tooth to emerge in infants is the lower medial incisor, and this occurs at approximately 6 months of age. Usually, the eruption of baby teeth ends by 2.5 years.

Mixed dentition

Mixed dentition begins when baby teeth begin to fall out and permanent teeth emerge. This period begins at approximately 6 years of age and ends at 12 years of age. During this period, both baby and permanent teeth are present in the child's mouth.

Permanent dentition

The permanent dentition is the dentition that follows the primary dentition and consists of 32 teeth - 16 in the upper jaw and 16 in the lower jaw. There are also four types of teeth in the permanent dentition: incisors, canines, small molars and large molars.

Group dental formula of the permanent dentition: 3.2.1.2. The first tooth that emerges in children is the first molar, and this occurs at approximately 6 years of age. Most of the remaining permanent teeth erupt before about 14 years of age, although third molars may not erupt until 18 to 21 years of age.

Conclusion

Dentition is an important part of our health and well-being. Good dental health starts with proper dental care. Regular dental visits and frequent dental cleanings are key to maintaining dental health. It is also important to ensure proper nutrition and avoid excessive consumption of sweet and sour foods, which can damage tooth enamel.

We hope this article has helped you better understand the different types of dentition and how they change as you age. And don't forget that proper dental care is not only a key factor in maintaining dental health, but also an important aspect of overall health and well-being.

Dentition: main features and differences between primary and permanent dentition

Dentition is the arrangement of teeth in the mouth, which describes which teeth are in the upper and lower jaw and their arrangement in the row. A person has two rows of teeth: primary and permanent.

The primary dentition, also known as the decidum row or baby teeth row, begins to form in the womb and consists of 20 teeth - 10 in the upper jaw and 10 in the lower jaw. The primary dentition includes incisors, canines and large molars. Group dental formula for primary teeth: 2.0.1.2. 2.1.0.2. 2.0.1.2. 2.1.0.2. (where the first number in each group indicates the number of canines, the second - the number of incisors, the third - the number of small molars, and the fourth - the number of large molars).

Primary teeth begin to erupt at approximately 6 months of age, starting with the lower medial incisor, and ending at approximately 2.5 years. The lower incisors are the first to fall out at around the age of 6 years, and from this time until the age of 12 years, both baby and molar teeth are present in the child's mouth. This type of dentition is called mixed dentition.

The permanent dentition consists of 32 teeth, including incisors, canines, small and large molars. Group dental formula for permanent teeth: 3.2.1.2. The first tooth to begin to emerge in the permanent dentition is the first molar, which usually appears around the age of 6 years. Most remaining permanent teeth erupt before age 14, although third molars may not erupt until age 18 to 21.

The main difference between the primary and permanent dentition is that the primary dentition consists of only 20 teeth, while the permanent dentition contains 32 teeth. In addition, baby teeth have shallower roots and flatter chewing surfaces than permanent teeth.

In conclusion, Dental Row is the arrangement of teeth in the oral cavity. A person has two rows of teeth: primary (20 teeth) and permanent (32 teeth). The primary dentition erupts from about 6 months and ends by 2.5 years, and the permanent dentition begins at 6 years and ends by 18-21 years. Understanding the Dental Row and the differences between the primary and permanent dentition not only helps with dental care and oral hygiene, but can also be important in assessing a child's health and development.

Position of teeth in the mouth.

The permanent tooth formula determines the number and location of teeth in the oral cavity. It is used to describe the arrangement of teeth in both adults and children.

Row of baby teeth (deciduous dentition):

– Incisors: 8 upper and 8 lower teeth.
– Fangs (canines): 4 upper and 4 lower teeth.
– Large molars (premolars): 8 upper and 6 lower teeth.
Group formula of primary teeth: 2.0.1.2.2.

The first primary tooth appears at about 6 months of age, and the eruption of all primary teeth is completed at approximately 2.5 years of age. Loss of the lower incisors occurs around the age of 6-7 years.

Between the ages of 7 and 10 years, the replacement of baby teeth with permanent ones occurs, and during this period, both permanent and baby teeth are present in the mouth. This period is called “mixed dentition”.

Permanent dentition (permanent tooth row):

– Incisors: 8 teeth arranged in two rows of 4 teeth each.
– Fang: 4 teeth arranged in one row.
– Major molar: 8 teeth arranged in three rows of 2 teeth in each row.

Permanent tooth formula: 28/14/3*8.

Permanent teeth appear between the ages of 6 and 12 years.