Chin implant or sliding genioplasty: which is better?
⚠️ Contact your surgeon promptly if you notice these after chin surgery
Increasing redness, swelling, warmth, or discharge around your chin after surgery may signal infection and needs prompt evaluation. Sudden severe pain, difficulty swallowing, or signs of spreading infection (fever, chills) should prompt urgent medical attention. Temporary numbness of the lower lip and chin is common, but you should report any worsening or persistent numbness at your follow-up appointments.
Short answer
Both procedures can give excellent, lasting results, but the research leans toward sliding genioplasty producing higher patient satisfaction and fewer infections than chin implants, while implants are a simpler operation better suited to mild-to-moderate cases. The best choice depends on how much correction you need and your surgeon's expertise.
What the research shows
A 2024 retrospective study of 80 patients directly compared the two procedures. Patients who had sliding genioplasty (where your own chin bone is cut and moved forward) reported significantly higher satisfaction scores than those who received implants. The implant group also had a significantly higher infection rate, more wound separation (dehiscence), and more reoperations. Rates of nerve-related numbness were similar between the two groups. [4]
A large 2023 systematic review covering nearly 5,000 patients across 54 studies found that both techniques consistently produced satisfying cosmetic outcomes. However, the overall complication rate was 15.7% for implants versus 19.7% for osteotomy (bone cutting). Importantly, temporary nerve numbness was far more common after osteotomy (16.4%) than after implants (2.4%). [5]
A smaller comparison of 16 patients found both techniques gave satisfactory results with no complications in mild to moderate cases. The study noted that for severe chin deficiency, sliding genioplasty is the recommended approach, while implants (specifically Medpore) are especially useful for revising chin shape. [2]
A broader 2026 systematic review confirmed that both surgical approaches produce durable improvements and high satisfaction, but emphasized that no single technique is clearly superior and that treatment should be individualized. [1]
Key trade-offs to understand
Sliding genioplasty advantages: Uses your own bone, highly versatile (can move the chin in multiple directions), better for larger corrections, and in the head-to-head study showed higher satisfaction and lower infection rates. [4][2]
Chin implant advantages: Technically simpler and shorter procedure, quicker recovery, easier to remove or adjust, and carries a much lower risk of temporary nerve numbness (about 2% versus 16% for osteotomy). [5]
Shared risks include infection, nerve disturbance, bone resorption around the implant or graft site, and the possibility of needing a repeat procedure. [1][4][5]
What to ask your surgeon
Because the research shows that the right choice is personal, here are useful questions for your consultation:
- How much projection do I actually need? (Implants may be sufficient for mild cases; genioplasty for larger advancements.)
- What is your personal infection and complication rate with each technique?
- If I have an implant, what approach do you use: through the mouth or under the chin? (The external approach had fewer wound-healing problems in one study. [4])
- What is the plan if I need a revision later?
No study currently provides a definitive universal answer, so an experienced surgeon reviewing your specific anatomy is the most important factor. [1]
Caveats
Most studies comparing these two procedures are retrospective (looking back at past cases) with relatively small numbers of patients. No large randomized controlled trial has directly tested the two head-to-head, so the evidence, while helpful, has real limitations. Results can also vary significantly depending on surgeon experience and the specific implant material used. [1][5]