Hi Dhaval,I am happy to offer some suggestions. I am an Accredited Member, Accreditation Examiner/Mentor, Chairman of the Written Exam Committee and on the ABCD Board. The booklets offered by the AACD and sample tests will be very helpful. I would know and understand the principles in the booklets back and forth. Many questions come from occlusion principles that have been true for decades such as taught by Dr's Dawson and Spear. Reading current periodicals is helpful. There are several material questions that have to do with bonding procedures and prep designs unique to specific commonly used materials so it is helpful to be familiar with current recommendations. It is important to understand photography and the relationships between hue, value, chroma, and saturation.
You will be able to get a feel for the format of the test questions by completing the sample tests online. Actual test questions may be similar. When we construct the test we try to make all the answers somewhat plausible with one best answer. So it is always important to read all the possible answers before picking the most correct one.
Materials and Adhesion: read manufacturer recommendations for the common brands and understand why each step is completed. For example, understand the bonding process for composites on enamel vs dentin and what each step is accomplishing. You should have a basic understanding of what types of fillers are used, and the sizes, shapes, and percentages of fillers. You should understand how to prevent sensitivity.
Look at restorative materials and prep designs for PFMs, Zirconia, Emax, Feldspathic, and pressed ceramics. Manufactures have this information. Understand when you might want to use one of these rather than another and how the bonding process differs between them.
Perio – look to articles from Salama/Salama/Garber/Spear/Dawson and others. Really understand positioning of implants whether they are close to teeth or other implants and how best to preserve or create papillas. Understand biologic width and how to make sure a papilla will regenerate or not be lost in the first place. Good to know recommended procedures to cover exposed roots or build up tissue in pontic sites.
Centric relation, centric occlusion and TMJ issues – Dr. Pete Dawson's books are great and pretty uncontroversial.
Wishing you the best as you proceed in this wonderful journey.
See you in Fan Francisco! Julie