The issue is the ever-expanding resource pool that you can dip into for studying.... my advice is to create your own library in the beginning, create a study program (Week 1 and 2- Dentofacial anomalies, Week 3-4 TMJ disorders and mgmt, etc) and supplement with OMS Knowledge updates.
1.)Bagheri Clinical Review Book
2.)The Miloro Complications in OMS book (awesome for written and orals)
3.)Petersons 2 volume
4.)Reyneke for orthognathics!
The Bagheri book really helped during my writtens.
Any questions just holla!