There is generally a 6 week period after surgery where the Oral & MaxilloFacial Surgeon (the individual who undertakes the jaw surgery) looks after the patient. After this 6 week period the orthodontist again takes over treatment.
These photos are at that 6 week appointment when the surgical wires and removed and the teeth and gums cleaned.
The braces remain on generally for another 6 months at least to ensure stability of the surgical result.