I come across several commercial manufacturers of chin implants that state they can provide up to 12-13 mm of projection. Is having such an implant this size possible or is there an such an increased risk of having them that it isn't feasible. Thank you!
How Much Augmentation is Possible with Chin Implants?
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Doctor Answers 2
Chin implant size depends on a number of factors.
Chin augmentation with solid silicone elastomer implants is a great way to add projection and definition to a "weak" or retrusive chin. But, you should first make sure you are not in need of oral surgery of your jaw or maxilla (see an expert oral and maxillofacial surgeon, or ask for a referral from your dentist), and that your bite and teeth come together properly. Once those factors have been satisfactorily addressed, then only the good judgment of the patient and the chosen surgeon can best determine the optimum type and size of implant to achieve the desired goal.
For several examples and the sizes used, see photos of my patients at the link below. Case 6 has the largest implant of all these six patients. Also see several of the rhinoplasty examples that also have chin implants.
Amount of augmentation with chin implant
The common chin implant material is silastic material. We prefer the Implantech brand of chin implants. They come in sizes small, medium, large, and extra large. The amount of anterior projection depends upon the size of the implant. Anywhere from 1-1½ cm (10-15 mm) is usually the total amount of augmentation achieved with chin implants. The chin implant procedure can be performed under local anesthesia as an outpatient procedure. The implant is placed through a submental incision and placed directly over the bone underneath the periosteum of the chin area.
These answers are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.