In 30 seconds: Two different surgical routes can reshape a weak or recessed chin: sliding genioplasty, which cuts and repositions your own chin bone, and a chin implant, which sits over the existing bone to add projection. Neither is “better” in general: they suit different anatomy. An implant is usually enough when the only issue is a modest lack of forward projection and the chin’s height and symmetry are otherwise normal. A genioplasty is needed when the correction has to move in more than one direction, correct asymmetry, or be planned alongside jaw (orthognathic) surgery. The right choice is a clinical judgement based on measurements, not a preference between “with or without an implant.”
Is your chin actually an implant candidate, or a bone-movement case?
Most patients arrive asking “implant or genioplasty?” as if it were a style choice, like picking a phone case. It isn’t. The two procedures solve different geometry problems. An implant adds material in front of (and sometimes beside) the existing bone: it can only push the soft tissue further out in the direction the implant faces. A genioplasty repositions the bone segment itself, which means it can move the chin forward, backward, up, down, or a combination, and can rotate one side more than the other to correct asymmetry. Before comparing the two as if they were equivalent, the real question is what movement, in which direction, your chin actually needs, which is why this is assessed with clinical measurements and imaging, not guessed from a photo.
Chin implants: adding projection without cutting bone
A chin implant is a shaped, biocompatible implant (typically silicone or a porous polyethylene material) placed over the front of the chin bone through a small incision, either inside the lower lip or in the crease under the chin.
- Good for: a chin that is simply set back in profile, with otherwise normal height, width and symmetry, i.e. a pure forward-projection deficiency.
- Advantages: shorter operating time than genioplasty, no bone cut, and it is removable if the patient later wants a different size or no implant at all.
- Limitations: it cannot correct vertical excess or deficiency (a chin that is too long or too short), it corrects asymmetry poorly compared with moving the bone itself, and because it is a foreign material, it carries a separate, if uncommon, set of long-term risks: gradual erosion of the bone underneath it, infection that can require removal, capsule formation, or the implant becoming palpable or visibly shifted in patients with thin overlying tissue.
- Soft-tissue effect: an implant pushes the chin forward from underneath the soft tissue rather than carrying it along. The overlying tissue therefore follows the change less naturally, and the fold between the lower lip and the chin (the labiomental fold) can become deeper or more marked than expected.
Sliding genioplasty: moving your own bone
In a sliding genioplasty, the chin segment of the jawbone is cut with a controlled osteotomy, moved into the planned position, and fixed in place with a small titanium plate and screws. Because it is your own bone, there is nothing foreign left behind and nothing that can shift, migrate, or need replacing later.
- Good for: corrections that need more than simple forward projection: vertical lengthening or shortening, correcting an asymmetric chin by moving each side independently, or larger horizontal movements than an implant can safely provide.
- Advantages: multidirectional control in a single procedure, a more natural soft-tissue result (the chin segment stays attached to its muscles and soft tissue, so they move forward together with the bone instead of being stretched over an added shape), no implant material, and it integrates cleanly with jaw surgery when the chin is being planned alongside a bite correction.
- Limitations: it is a more involved procedure than placing an implant, healing of the bone cut takes longer than soft-tissue healing around an implant, and it is not designed to be reversed: a further correction, if ever needed, means a second bone movement, not a simple removal.
Genioplasty vs chin implant, side by side
| Comparison | Chin implant | Sliding genioplasty |
|---|---|---|
| What moves | Nothing: material is added in front of the bone | Your own chin bone segment |
| Directions of correction | Forward projection (and some width) | Forward, backward, up, down, and asymmetric correction |
| Foreign material | Yes | No (titanium plate/screws only, for fixation) |
| Reversibility | Removable | Not designed to be reversed |
| Best suited to | Isolated, modest projection deficiency with normal height/symmetry | Vertical or asymmetric correction, larger movements, combined jaw surgery cases |
| Soft-tissue result | Tissue is pushed out over the implant; can look less natural and deepen the labiomental fold | Tissue attached to the bone moves with it, for a more natural profile |
| Long-term considerations | Possible bone erosion under implant, capsule, rare shift or need for removal | Permanent bone position; revision means further bone surgery |
When each option actually makes sense
In practice, the decision comes down to a small number of documented factors, checked in consultation and usually confirmed on imaging:
- Direction of correction needed: forward-only, both are candidates; anything vertical or multi-directional, genioplasty.
- Symmetry: a chin that is off-centre or uneven side-to-side is corrected far more precisely by repositioning bone than by shaping an implant around it.
- Whether jaw surgery is also planned: if the chin correction is part of a broader orthognathic (jaw) plan, it is almost always done as a genioplasty in the same setting, since the movement can be planned in three dimensions together with the jaw.
- Tissue thickness: patients with very thin skin and soft tissue over the chin are more likely to feel or see an implant’s edge over time, which favours genioplasty.
- Appetite for a removable option: patients who want the ability to reverse the change, or to start smaller and reassess, are better suited to an implant.
Why this stays a surgeon’s decision
The chin sits directly over the mental nerve, which supplies sensation to the lower lip and chin skin, and the correction interacts with the tooth-bearing bone and bite even when the bite itself isn’t being changed. Both procedures are planned to keep the osteotomy or implant pocket clear of the nerve and the tooth roots, but that margin has to be measured on imaging, not estimated by eye. This is also why a chin that looks “just weak” in the mirror is sometimes, on closer assessment, part of a jaw relationship that needs a different conversation altogether, which is why the assessment starts with the full jaw and bite, not the chin in isolation.
Frequently asked questions
Can a chin implant be combined with jaw (orthognathic) surgery?
It’s technically possible, but when a chin correction is planned alongside jaw surgery, a genioplasty is generally preferred instead, since the chin segment can then be repositioned in the same three-dimensional plan as the jaw movement.
Does a chin implant need to be replaced over time?
Not routinely: a well-placed implant can remain indefinitely. Replacement or removal is occasional, usually prompted by infection, shifting, a change in the patient’s wishes, or visible thinning of the tissue over it, not a scheduled expiry.
Will I lose feeling in my chin after either procedure?
Temporary numbness or altered sensation over the chin and lower lip is common with both, from swelling and nerve handling near the surgical field, and it typically improves over weeks to a few months as the tissue settles.
Can genioplasty correct a chin that’s crooked, not just recessed?
Yes: this is one of genioplasty’s advantages over an implant. Because the bone segment itself is moved, each side can be repositioned independently to correct asymmetry, which an implant (a symmetric, off-the-shelf or custom shape) is much more limited in doing.
Which option feels more natural long-term?
Genioplasty generally gives the more natural result, because the soft tissue attached to the chin bone is carried forward with it, whereas an implant pushes the tissue out from underneath and can leave a more marked fold between the lower lip and the chin. They also age differently: a genioplasty moves with the rest of the facial skeleton over time since it is bone, while an implant’s position relative to the bone underneath it can very occasionally change as the bone remodels beneath it, especially over many years.
If I choose an implant and don’t like it, what are my options?
Implants are removable, and many patients who want to “try” a change or aren’t ready for a permanent decision choose this route for that reason. Removal or exchange for a different size is a smaller procedure than the original placement.
About the author
Dr Marc-Kevin Le Roux is a French board-certified maxillofacial surgeon based in Dubai, specialising in facial and jaw surgery, from chin and jawline reshaping to full orthognathic (jaw) surgery. His training covers both the facial skeleton and the soft tissue over it, which is why chin correction is assessed as a bone-and-bite question first, and a choice of technique second. Learn more about Dr Le Roux.
Related: Chin Surgery, Genioplasty vs Chin Filler, Jawline Implant
