In short. An implant is placed surgically against the jaw and moves the chin forward. What that structural change does, what it asks of a patient, and how it is removed.
Key points
- An implant does not sit in front of the chin; it acts on the relationship between the chin and the rest of the profile.
- That is why the projection is planned in advance, and why the assessment is made on the profile rather than on the chin.
An implant is the option in this comparison that changes the chin from the bone. It is placed surgically, it is intended to remain, and it produces a projection that is structural rather than an addition in front of the jaw. What that means in the operation, in the recovery and in what it takes to undo is most of deciding whether it suits a particular chin.
What is placed, and where
The implant is positioned against the front of the jawbone through an incision either inside the mouth or under the chin, and it is fixed so that it stays where it is put. The amount of projection is chosen before the operation from the assessment of the profile. The incision heals with a scar, whose position is chosen to minimise it: inside the mouth it is not visible, and under the chin it is placed where it is least conspicuous.
What it changes, and what it does not
It moves the chin forward. It does not reshape the jaw angle, and it does not change the nose. Because a profile is read as a relationship, moving the chin changes how the nose and the lips appear to sit, and that is a real effect rather than an illusion. What it does not do is change those structures, so a profile whose imbalance lies in the nose is not corrected by moving the chin.
The change is structural
An implant does not sit in front of the chin; it acts on the relationship between the chin and the rest of the profile. That is why the projection is planned in advance, and why the assessment is made on the profile rather than on the chin.
What the operation asks of a patient
The chin and the lower face swell, most conspicuously in the first days, and most patients describe about a week before they are comfortable in ordinary company. Eating and speaking are uncomfortable at first, and bruising may track down the neck. The incision needs the care its instructions describe. All of it is easier to manage when it has been explained in advance.
The risks, and the second operation
Infection can occur and may require the implant to be removed. The nerves that supply sensation to the lower lip and the chin can be injured, usually temporarily but sometimes lasting. An implant can move from where it was placed, and bone can change beneath it where it presses. Removal is a second operation on tissue that has already been operated on, and the chin afterwards is generally not identical to the chin before.
What to establish before choosing this option
- That the deficiency is at the bone, since an implant answers a structural finding and not a proportional one.
- That the projection planned is measured against the whole profile, because an implant that is too large is the most common reason a result disappoints.
- That a second operation to remove or revise it is acceptable to you, because it is a real operation rather than a small procedure.
An implant is a structural answer to a structural problem. It is not a larger version of an injection, and a patient who wants the option that can be adjusted and dissolved is describing the other one.
Frequently asked questions
How is an implant placed?
It is placed surgically against the front of the jawbone, through an incision either inside the mouth or under the chin. It is positioned to produce a measured amount of projection, and it is fixed so that it stays where it is put. Because it is an operation, it carries the risks of anaesthesia and of surgery, and the recovery is measured in weeks rather than days.
Does an implant change the shape of the jaw or the nose?
No. It changes projection at the chin, and the rest of the profile is unchanged. That matters because a profile is read as a relationship: moving the chin forward changes how the nose and the lips appear to sit without changing either of them. A plan that promises a different jawline is promising something the operation does not do.
What happens if the implant has to come out?
It is removed in a second operation, with its own anaesthetic, risks and recovery. The chin afterwards is generally not identical to the chin before the first operation, because the tissue has been operated on and the pocket the implant sat in remains. That possibility belongs in the decision rather than in the aftercare.
Risks & Limitations
- No result can be guaranteed, and swelling must settle before either result is judged.
- An implant can become infected or move, and is removed only by a further operation.
- Filler is absorbed over months and the result is temporary.
- Neither option makes a chin smaller, and neither treats a bite or airway problem.
When to Seek Care
- Fever, or spreading redness, warmth or discharge around the incision or injection site.
- Severe or increasing pain, or a colour change in the skin of the lip or chin.
- Vision change or eye pain after a facial injection — this is an emergency.
- Worsening numbness or difficulty with the lip that was not there before.
References & Further Reading
- American Society of Plastic Surgeons (ASPS) — facial implant and injectable safety guidance
- National Institute for Health and Care Excellence (NICE, UK) — relevant guidance
- Cochrane Library — systematic reviews on facial volume treatment
- Chinese Medical Association Plastic Surgery Branch — clinical guidance
This page is patient education, not medical advice, and it does not cite individual studies. Discuss your own case with a qualified clinician. To arrange an assessment at Chongqing West District Hospital, see Contact & Consultation.