The chin is the anterior extension of the mandible, which has a dominant influence on the shape of the lower face and the neck below it.

The shape of the chin is a function of the thickness of the bone and how well the ramus and body of the mandible have developed.

Class II and III malocclusions are always associated with obvious aesthetic chin deformities.

The classic ideal chin position aligns with a vertical line dropped from the base of the nose and the forward position of the lips.

Chin hypoplasia should be viewed as a three-dimensional problem that involves

Once complete mandibular growth has occurred by the late teens or early 20s, no further change in the chin shape or forward projection will occur.

Occlusion (class I or II)

Amount of horizontal chin weakness

Vertical chin height

Depth of labiomental fold

Desired position of chin determined with the help of computer imaging

Presence of chin dimples or vertical chin cleft

Standard imaging includes patient photographs from multiple views (front, side, and oblique).

Cephalometric x-rays and pantomogram can be used to evaluate hard tissue position and mental nerve foramen location.

Three-dimensional (3D) computed tomography (CT) is useful if a custom chin implant is needed or prior chin implant or bony genioplasty has been performed.

Synthetic injectable fillers

Fat injections

Aesthetic chin augmentation can be performed at any age beyond the early teenage years. Absolute skeletal maturity does not have to exist in severe chin deficiencies.

There are no absolute contraindications other than the patient’s willingness to accept a synthetic facial implant.

Determine what style and size of chin implant are needed based on aesthetic objectives (FIG 2).