Chin and Jawline
Which of bone, bite, muscle or fat sets the shape of your lower face, and what each route can reach.
The lower face is where the wrong diagnosis is easiest to make, because four different tissues produce a similar outline. Width at the back of the jaw is often the masseter muscle. Width at the front is the bone. Softness under the chin is fat. A chin that looks small may sit too far back, or be too short, or both, and the bite underneath decides which of those can be changed.
Assessment starts with your teeth together, in front of a mirror and in profile. Note where the chin sits relative to the lips, whether the jaw looks wide at rest or only when you clench, and whether the change is in the bone or in the tissue over it. sets out how the examination separates bone, bite and soft tissue, and which of the three each complaint usually belongs to.
The topic carries so many sites because each structure has its own route, its own limit and its own reversibility. Relaxing a muscle is not the same decision as cutting bone, and a change that fades over months asks a different question of you than one that does not. is the clearest example of that difference.
Start with the area
Where the anatomy and the options are set out together.
Understand the problem
What causes it, how it is assessed, what can be done.
The procedures
One page per procedure: candidacy, recovery, risks, limits.
Choosing between options
Head-to-head comparisons that name no winner.
Background and service lines
The medical system behind the cluster.
Other ways into this cluster
Common questions
Frequently asked questions
How do I know whether my jaw is wide because of muscle or bone?
Clench your teeth and feel the back corner of your jaw. If the width increases noticeably when you clench and softens when you relax, the muscle is contributing. If the outline is unchanged and the corner feels hard, it is the bone. Both can be present, and an examination separates them, but the clench test is a reasonable first observation to bring with you.
Can filler replace a chin implant?
For a modest change in projection, an injectable can add what is missing, and the result can be adjusted or partly reversed. It does not give the definition that a solid implant does, and it is a repeated decision rather than a single one. Where the chin is short in height as well as set back, an injectable reaches less of the problem and the comparison page explains why.
What happens when masseter treatment wears off?
The muscle gradually returns to its earlier size over the months after the effect fades, and the width comes back with it. Treatment is therefore a decision about repeating it rather than a one-off. That reversibility is a real advantage if you dislike the change, and a real cost if you wanted the result to stay, which is worth thinking about beforehand.
Is a small chin always a surgical problem?
No. Some chins look small because of how the nose or the lips compare with them, and some sit back because of the bite rather than the bone. Where the bite is the cause, moving the chin alone can leave the teeth out of step. The assessment looks at the profile as a whole before it looks at the chin, and that order matters.
Why is there a page comparing orthognathic surgery with contouring?
Because the two are frequently confused. Orthognathic surgery changes how the jaws meet and is planned together with the bite, often over a long period. Cosmetic contouring changes the outline of the bone without moving the bite. If your teeth do not meet properly, the first is the relevant question; if they do, the second usually is. The examination answers that before any plan is made.
What can go wrong in chin surgery?
The risk depends on the route. Cutting the chin bone can change sensation in the lower lip, and that change is usually temporary but not always. An implant can shift, become infected or show at its edges. An injectable in this area can be misplaced. Each procedure page states the risks for that route rather than a general list, because the lists are not the same.
Find the site that answers your question
This page carries no articles of its own. Pick the site closest to your question and read it there.