When Do Jaws Stop Growing?

Jaw growth varies by sex, age, and growth pattern.  On average, jaw growth progresses into the late teens and occasionally into the early twenties especially in class III growth abnormalities (underbites) and males. Your description sounds a bit like a case of unilateral condylar hyperplasia which occurs during growth to one side of the jaw where one side grows disproportionally to the other.  This results in an asymmetrical rotation and translation of the jaw upon opening which may create a "pop" or click in the articular disc upon opening.  Changes in the bite also can produce clenching or bruxing of the teeth resulting in joint noise.  In more severe cases, changes in facial symmetry often occur.A complete evaluation by a board certified oral and maxillofacial surgeon is indicated to diagnose and if needed treat these issues.Best of Luck!

The jaws usually stop growing in females around the ages of 16-17.  For males usually 18-21.  This is only a guide and not always true.  Every individual is different.  You can determine when growth stops with serial cephalometric films or even hand / wrist films to see if the growth plates are gone.  The size discrepency may mean this individual has a dentofacial deformity known as hemifacial microsomia.  It cant be determined until she is examined by a Board Certified Oral and Maxillofacial surgeon.  This is something that usually will not correct itself and quite often requires surgicalintervention (orthognathic surgery). If not addressed this may cause severe deterioration of her TMJ and may require joint replacement.  The surgery is usually done near the time of ceasation of growth as you are inquiring.  Make sure to have her examined.  In my practice I  perform this surgery quite often with excellent long term results.  Seek the advicce of a board certified OMS