Testimonials

Chin Implants

Chin implant surgery has long been touted as a simple operation that reliably gives good results. Dr. Yaremchuk believes that the aesthetic result is often less than ideal when conventional techniques are used. The result may be compromised by the preoperative analysis, the surgical technique, the implant design and the host response to the implant material.

The adequacy of chin projection should take into account several variables including sex, the effect of occlusion on lower lip position, the thickness of the chin pad, and the depth of the labiomental fold. When these variables are not considered, implant augmentation may result in a chin that is unnatural and too large, particularly in a woman.

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This diagram is adapted from the work of Farkas and his coworkers. It shows the average profile of a young North American Caucasian female. The chin point lies an average of 4.1 degrees behind a perpendicular dropped from the glabella (lower forehead). At 1 standard deviation (SD) (the area colored in orange) the chin point still lies behind the perpendicular line (dashed line) dropped from the forehead.

The diagram adjacent to it shows the average profile of a young North American Caucasian male. It documents that men have more prominent chins than women do. However, only at 1SD does the chin point met the perpendicular (dashed line) dropped from the forehead. These measurements show the differences between women's and men's faces and help explain why implants that are too large may be interpreted as unnatural and may masculinize a woman's face. These anthropometric measurements should not act as absolute guidelines for chin surgery.  In any individual patient, greater or lesser chin projection may be appropriate to create the best “balance” of a face. 

Chin augmentation with certain shaped implants can create unnatural chin contour. Implants that augment only the chin point produce an abrupt, protruding chin rather than a jaw-chin continuum.

This patient shows how a large implant that augments the chin point only can create an unnatural 'stuck on' appearance.

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Extended one piece implants do not always match the contour of the native mandible. Particularly when placed through small intraoral incisions, minimal inaccuracies in placement or asymmetries in the midaspect (chin point) of the native mandible may result in gross distortions and irregularities in the more lateral aspect of the chin. 

The diagram shows how this may happen. The clinical example shows the resultant distortion in mandibular contour. The arrow points to the distal end of the chin implant which extends over the edge of the native mandibular border.

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Dr. Yaremchuk has designed a two piece implant which helps to avoid some of these problems. Patients who have had surgery with his implant are shown in the patient example section of this website.

Illustration by Kip Carter, MS, CMI

 

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This patient underwent chin augmentation, submental lipectomy (removal of fat beneath the chin) and buccal lipectomy (removal of fat from the lower cheek) to improve facial contour.

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This patient underwent chin augmentation with a porous implant.

 

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This patient with long face syndrome underwent chin shortening, chin augmentation and posterior mandible augmentation.

 

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This patient underwent chin augmentation and submentallipectomy

 

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This patient underwent sagittal osteotomy of the chin to lengthen it and a porous polyethylene implant to increase its projection.

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This patient with micrognathia underwent chin and mandible augmentation

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This patient underwent chin and mandible augmentation as well as submental lipectomy

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This patient with a long face had her chin shortened and also augmented with an implant. She also had a rhinoplasty.

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This patient underwent chin augmentation

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This patient underwent chin augmentation and submental lipectomy

 

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This patient underwent chin augmentation

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This patient’s microgenia was corrected by increasing the vertical height of the chin with a lengthening horizontal osteotomy and augmenting the chin and mandible with implants.

 

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This patient underwent chin augmentation

 

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This patient desired slight chin shortening,and sagittal augmentation.

 

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This patient underwent chin augmentation and rhinoplasty.

 

Chin Implant Surgery Procedure