Postnatal Growth Of Mandible

Postnatal Growth Of Mandible

Growth was defied by many of the researchers, which is as follows:

• Postnatal Growth Ofthe  Mandible is defined as “self multiplication of living substance.”
• Postnatal Growth Of Mandithe ble is defined as an “ increase in size, change in proportion over time”.
• Po.” natal Growth Of the Mandible is defined as “Any change in morphology which lies within the measurable parameter.”
• Postnatal Growth Ofthe  Mandible is defined as the “Quantitative aspect of biological development per unit of time”
• Postnatal Growth Of the Mandible is defined as an “Entire series of sequential anatomic and physiologic changes taking place from beginning of prenatal life to senility”

Postnatal Development Of Mandible

Postnatal Development Of the Mandible is explained as “Development can be considered as a continuum of causally related events from the fertilization of ovum onwards.” —Melvin Moss.

Read And Learn More: Mandibular Growth, Functional Matrix Theory & Space Maintainers in Orthodontics

“Factors Affecting Postnatal Mandibular Growth”

Postnatal Growth of Mandible

Body of Mandible

• The body of the Mandible undergoes anteroposterior growth.
• The length of the body of the mandible increases because of the resorption of the anterior border of the ramus of the mandible.
• The body of the mandible shows a transverse expanding V principle.

“Role Of Hormones In Postnatal Mandibular Growth”

Ramus of Mandible

• Resorption of bone occurs at the anterior border, and deposition of bone at the posterior border.
• Shifting of the ramus occurs posteriorly, and it becomes upright.
• Transverse deposition of bone occurs on the mesial (inner) surface and resorption over the lateral (outer) surface.

Coronoid Process

• The growth pattern of the anterior border of the ramus is followed.
• The growth pattern is influenced by the activity of temporalis.
• Transverse deposition of the bone occurs on the medial surface, while the resorption occurs over the lateral surface.

“Understanding The Role Of Hormones In Postnatal Mandibular Growth”

Condylar Process

• The condyle of the mandible grows superiorly as well as posteriorly.
• This growth occurs when there is a forward change in the position of the mandible by the capsular matrix.
• As the resorption occurs over the anterior and posterior surfaces, the neck or the condyle flattens.

Symphysis of Mandible

• Symphyseal growth occurs because of resorption in the alveolar bone just above the chin point at the anterior border of the mandible.
• Deposition of bone occurs at the medial surface of the chin.

Postnatal Growth Of Mandible

Mandibular Morphology In Young Children

Importance of Postnatal Differential Growth

Growth of the face is differential and follows a pattern. Knowledge of growth-related changes is essential in planning orthodontic treatment. It is important to understand and anticipate the amount and relative rate of growth in different parts ofthe face, especially in childhood and adolescence. The orthodontist needs to assess the developmental status of an individual and estimate remaining growth to plan treatment.

Mandibular Growth Patterns In Infancy

Importance of Postnatal Growth Rotation

Growth rotations assume an important role in orthodontics because of their major impact on treatment strategies and outcomes. Rotation of maxillary and mandibular jaw bases is the major factor in etiological assessment, determining the nature of the anomaly, the prognostic evaluation, determining the possible forms of treatment, choosing the principles of treatment, and assessing the stability of treatment results.

Postnatal Mandibular Maturation

Certain rotational patterns of jaw bases can be manipulated effectively using functional and orthopedic devices, while certain extreme rotations are very difficult to treat, and surgical correction has to be performed at a later stage.