Can Braces Fix Jaw Problems?

Dental vs skeletal jaw problems

The most important distinction in orthodontic assessment is whether a bite problem is dental or skeletal. Dental: the teeth are in the wrong position but the jaw bones themselves are normal in size and relationship. Braces move teeth and correct the bite. Skeletal: the jaw bones themselves are out of proportion — the upper jaw may be too small or too large, or the lower jaw too prominent or too recessed. Braces can partially compensate for a mild skeletal discrepancy through camouflage, but they cannot change the underlying bone shape in adults.

What braces can fix

Problem → Can braces fix it? → Notes: Dental overjet (teeth tipped forward) → Yes → Retract upper front teeth. Dental overbite → Yes → Intrusion and extrusion mechanics. Crowding → Yes → Often with IPR or extractions. Spacing and diastema → Yes → Space closure or opening. Dental crossbite → Yes → Usually straightforward. Mild skeletal discrepancy (dental camouflage) → Partially → Compensates for mild skeletal pattern. Significant skeletal Class II or III → No in adults → Jaw surgery required. Facial asymmetry from bone → No → Surgery required.

What braces cannot fix without surgery

Adults with the following conditions require orthognathic surgery combined with orthodontics: significant skeletal Class II (receding lower jaw); significant skeletal Class III (prominent lower jaw); meaningful facial asymmetry caused by bone; and open bite caused by skeletal divergence rather than tooth position. In these cases, orthodontics alone produces a camouflage result that may be acceptable for mild discrepancies but cannot fully correct the underlying jaw relationship.

Functional appliances for growing patients

In children and teenagers, functional appliances — including twin block, Herbst, Forsus, and bionator appliances — harness the jaw's growth potential. By repositioning the jaws during the growth window, they can genuinely change the jaw relationship rather than just mask it. This window closes with skeletal maturity, typically in the late teens. After growth is complete, the options are camouflage orthodontics for mild cases or surgery for significant skeletal problems.

TMJ and jaw pain

Many patients ask whether braces can fix jaw pain or clicking (temporomandibular disorder, TMD). The evidence that orthodontic treatment reliably resolves TMJ symptoms is limited. TMD has multiple causes — joint anatomy, muscle tension, occlusal factors, and psychological stress. Braces can improve the bite relationship, which may help some patients with bite-related symptoms. However, orthodontics is not a treatment for TMD per se, and patients should not begin orthodontic treatment with the expectation that it will resolve confirmed TMD.

When jaw surgery is needed

Adults with a significant skeletal discrepancy who want full correction — not camouflage — require a combined orthodontic-surgical approach. The sequence is: pre-surgical orthodontics (typically 12–18 months) to position the teeth for ideal alignment after surgery; orthognathic surgery to reposition the jaw bones; and post-surgical orthodontics to finalise the result. NHS funding is available if the patient meets clinical and surgical criteria. A referral to a maxillofacial surgeon working alongside your orthodontist is required.

Useful related pages

This guide is for general information only. It is not a diagnosis, treatment plan, or substitute for advice from a registered dentist or orthodontist.