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Baldwin Marchack is a 1971 graduate of the Ostrow School of Dentistry of USC.  In 1989 he received his MBA from the Anderson Graduate School of Management at UCLA. He is a Fellow of the American College of Dentists, a Fellow of the International College of Dentists, and a Fellow of the Pierre Fauchard Academy.

Dr Marchack is a member of the Academy of Prosthodontics, the International College of Prosthodontists and the Academy of Osseointegration; and he is past-president of the American Prosthodontic Society, past-president of the Pacific Coast Society for Prosthodontics and past-president of the American Academy of Esthetic Dentistry and the International Federation of Esthetic Dentistry. Dr Marchack is a former Examiner for the California State Board of Dental Examiners, and he is an Honorary Member of the American College of Prosthodontists. He serves on the Board of Councilors for the Ostrow School of Dentistry of USC and is the Course Director for the USC Esthetic Dentistry Training Program in Hong Kong and course director for the USC Comprehensive Surgical and Restorative Implant Dentistry Training Program in Hong Kong. He has served as Chair of the Editorial Council for the Journal of Prosthetic Dentistry, and he maintains a private practice in Pasadena, California.

Taking the Mystery Out of Occulsion in Implant Dentistry 

Now that so many restorations for natural teeth and implants are being made by one type of CADCAM system or another, Most restorations are being designed on computer using virtual wax-ups selected from a digital library of teeth that are stretched or condensed to fit your particular patient’s situation. What is the best way to check the occlusion on these CADCAM implant restorations?


The question of whether excessive occlusal forces in implant restorations cause crestal bone loss continues to be a topic for debate among restorative dentists and surgeons alike. What constitutes implant overload? What is the ideal occlusal scheme for implants? How should we check the occlusion when we deliver implant restorations?   How should the occlusion on removable implant assisted overdentures be different from the occlusion on fixed implant supported complete dentures?


Learning Objectives:

- Understand the bio-mechanics of teeth and Implants

- Understand how to adjust the occlusion of CADCAM restorations

- Understand how to design the occlusion of full arch fixed and removable implant restorations

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