Vertical lengthening chin implant - worth it?

The best treatment for lengthening the chin is a genioplasty. The surgical downtime is 3-5 days and we perform the surgery in the office with sedation. The surgery will not later your bite. An implant used to gain additional length has limitations.

This is my expertise and a huge portion of my practice. See an expert who does facial shaping with surgical and non surgical methods to get a comprehensive option. Best, Dr. Emer.

By your own description the one dimensional change you need for your chin is purely vertical. The standard vertical lengthening chin implant does provide vertical length but it equally adds horizontal projection which is a 45 degree vector of chin augmentation. This is not what you need. Given that an implant is your desired treatment approach the options are either a true custom made implant that only provides a vertical increase, a semi-custom vertical lengthening chin implant (borrowing from another patient's design) or modifying the standard vertical lengthening chin implant to eliminate the horizontal component of it.