Mentoplasty — A clinical analysis of alloplastic implants

Abstract

Different types of alloplastic implants are currently being utilized in performing mentoplasty. A review of the literature points out the number of prostheses that have been used. Each type of material has inherit physical properties which determine its characteristics for use as a chin implant. The type of implant and method selected in chin augmentation depends upon accurate preoperative evaluation and full understanding of the properties of alloplastic substances. Five hundred and thirty-nine cases of chin augmentation utilizing different materials and methods were reviewed over a nine year period. The limitations of mentoplasty as well as the advantages, disadvantages, and in selected cases, the indications for the use of a particular implant are discussed.

Alloplastic facial contouring: Surgery of the fourth plane

“…The same was true of the results of facial contouring using the round and oval miniscule implants made of silicone and other alloplastic materials [5,7,31,23,40,44]. Nothing could simulate the brilliant facial architecture created by Mother Nature.…”

25 Aesthetic Mandibular Implants

“…In addition, it should maintain a stable shape and size over time and, if the need arises, be easy to remove. 23 Currently, in the senior author's opinion, the ideal alloplastic material for mandibular implantation is Silastic. This material is flexible yet firm, can be carved if needed, and, although it does induce the formation of a surrounding capsule, is otherwise nonreactive to surrounding tissue.…”

“…This material is flexible yet firm, can be carved if needed, and, although it does induce the formation of a surrounding capsule, is otherwise nonreactive to surrounding tissue. 23 In the past, central chin implants were commonly used, but they often migrated, resulting in an abnormally pointed appearance (Fig. 25.4).…”

Implants in facial skeletal augmentation

“…In evaluating a patient's suitability for chin implantation, it is important to recognize that micrognathia, retrognathia, and/or vertical lowerfacial height inadequacy are not 'corrected' using implants [6]. These conditions frequently require the employment of carefully planned osteotomies (i.e., sliding sagittal-split osteotomies and/or osseous genioplasty), to comprehensively correct both the occlusal and skeletal problems.…”