Chin Surgery (mentoplasty) involves the augmentation, reduction, or general reshaping of the chin. The two most common methods are: chin augmentation, which reshapes the chin by inserting a silicone implant under the skin, and chin reductions, which involve bone reduction with power bone instruments.

A more serious type of procedure, craniofacial surgery, corrects misshapen jaws caused by misalignment of the teeth and jaws (malocclusion), or mild inadequate tissue development (hypoplasia) which can appear as a recessed upper jaw. Patients with a major chin deficiency require bone surgery (osteotomy) where the bone of the chin is moved forward following various oblique bone incisions, thereby reshaping the chin.

In chin augmentation surgery, implants are used to change the underlying structure, which affects the overall balance of facial features. Often chin implants are used together with other facial implants, particularly cheek implants, however, they can be used alone. This operation is often performed in conjunction
with nose surgery
 as well as a facelift and/or liposuction of the face and neck.

Chin implants are made in various shapes and sizes. They are made out of both solid and semi-solid materials.