Gnathion

Gnathion is the lowest point on the lower jaw along the medial line. This anatomical point is located in the center of the chin, where the two halves of the lower jaw meet. Gnathion is used in craniometry to measure various parameters of the facial skeleton. For example, the distance between the gnathion and the nasion (the most prominent point of the nose) is called facial height. Gnathion is also used in anthropometric studies to compare chin shape among different racial and ethnic groups.

The gnathion is the lowest point along the medial (inner) line of the mandible. It is located at the junction of the alveolar process and the ramus of the lower jaw, at the level of teeth 3.6 and 3.7. In dentistry, the gnathion is considered the point where the mesial downward inclination of the mandible begins.

Gnathion is an important guideline when carrying out various dental procedures, such as installing implants, installing orthodontic braces, etc. It is also used in determining the depth of implantation and choosing a location for installing an implant.

Additionally, the gnathion can be used as a reference point to measure the height of the mandible and determine its position in relation to the maxilla. This is important when planning orthodontic treatment and bite correction.

Thus, gnathion plays an important role in dentistry and is an important reference point for various dental procedures.

The gnathion is the lowest point in the mandibular system. It is located on the medial side of the lower jaw at a distance of 2.5-3.0 cm from the lower edge of the lower jaw and is separated from the body of the lower jaw by the palatine process. The gnathion belongs to the region of the deep hyoid muscles and lies between the lateral