After researching the various methodologies of dental bone repair - it sounds like they gave him a rigid fixation (ie plates and screws versus wiring his jaw shut) and likely would have utilized an rhBMP-2(Bone Morphogenic Protein 2) to decrease recovery time. Wikipedia indicates that such a treatment without BMP would likely result in 80% bone strength after 3 weeks, 90% after 4. Studies have shown that BMP administration can increasing healing rates substantially - increasing bone fracture strength by 33% after 2 weeks and 70+% after 4. Additionally, the administration of testosterone and a synthetic deriviative 19-nortestosterone, have both been shown to reduce fracture healing time by over 25% in rodents. Another testosterone derivative, oxandrolone, has shown been shown to result in dramatically increased synthesis of bone, collagen, matrix, and epidermis in oral cavity wounds. In vitro testing on human fibroblast culture has demonstrated a 10-fold increase in the messenger RNA for collagen synthesis. It is speculated that additional supplementation of rHGH or IGF-3 would additionally result in a decreased healing time, however real-world results have been inconclusive. Real-world testing has not demonstrated that either compound plays an important role in the repair of bone fractures.
Based on the above - I think we'll see him with a cage (ie 80-90% strength) in roughly 10-15 days assuming sufficient nutritional intake and mineral supplementation is undertaken.
Disclaimer: I am not a doctor. I literally did this research because I was bored. But hey, now I can pretend to be a dentist.