1. Smith B G N, Howe L C. Planning and making crowns and bridges. 4th ed. London: Informa Healthcare, 2011.
2. Shillingburg H T, Hobo S, Whitsett L D. Fundamentals of fixed prosthodontics. 2nd ed. Chicago: Quintessence Publishing Co Inc, 1981.
3. Shillingburg H T, Sather D A, Wilson E L et al. Fundamentals of fixed prosthodontics. 4th ed. Chicago: Quintessence Publishing Co Inc, 2012.
4. Ramfjord S P, Ash M M. Occlusion. 3rd ed. Philadelphia: W. B. Saunders Co, 1982.
5. Wassell R, Naru A, Steele J, Nohl F. Applied occlusion. Chicago: Quintessentials of Dental Practice, 2008.