Importance of Chin Evaluation and Treatment to Optimizing Neck Rejuvenation Surgery

Abstract

The chin is the keystone linking the aesthetics of the face and neck but is often neglected in the analysis. Procedures related to the chin play an important role in defining neck anatomy. Alloplastic implants can provide the illusion of a longer jaw line in a patient with retrogenia. Even greater anatomic changes to the neck result when a sliding genioplasty is performed. This effect is primarily due to the digastric attachments from the mentum and mastoid. Advancing the mentum may have a more direct effect of elevating the position of the hyoid, which sharpens the angle between the jaw and neck. Finally, the diagnosis of a witch's chin is also discussed for the patients who present for aging neck surgery.

Influence of Orthognathic Surgery on Voice Fundamental Frequency

“…As reported by Danahey et al, 7 individuals with chin deficiency and submitted to chin advancement exhibit higher hyoid bone positioning. This fact is explained by the connection between the chin structure and hyoid bone from the geniohyoid and mylohyoid muscles and anterior and posterior bellies of the digastric.…”

Anatomic Considerations in the Aging Face

“…A lower hyoid (C4 or C5) renders a more obtuse cervicomental angle and gives the appearance of a sloping neck and poorly defined jaw line. 13…”

Photogrammetry of Chin as a Requisite Preoperative Evaluation of Cosmetic Rhinoplasty

“…Moreover, may international standards cannot be used as a reference for the treatment of all Iranian patients [18]. Danahey and colleagues believe that there should be a fit between the nose and the chin and recommend that patients undergoing rhinoplasty must have counseling for genioplasty at the same time [19]. Mayer has introduced photogrammetry and cephalometry as a method for analyzing soft tissue and skeleton of the face to recognize asymmetry and [20] and Johnstown in complementary mandibular lesions correction [21].…”