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Matt Nejad

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Visualizing Polymerization Shrinkage and Stress

By Dr. Matt Nejad

Visualizing Polymerization Shrinkage and Stress
  • Duration: 1 hour

Summary:

The success of adhesive restorations relies on managing polymerization shrinkage stress to achieve a reliable adhesive bond. The effect of these stresses leads to signs and symptoms including microleakage, post-operative sensitivity, marginal-breakdown, recurrent decay, cuspal deformation, and cracks. These effects are not visible immediately, but it is of utmost importance to understand and manage the forces that are responsible in order to achieve long-lasting success with adhesive restorations. A strong understanding of these concepts will help practitioners select ideal restorative techniques for various clinical scenarios. A simple and intuitive new method is described for visualizing both polymerization shrinkage and stress. This method will help in selecting the ideal restorative technique to best minimize undesirable effects caused by polymerization shrinkage stress.

Learning Objectives:

  • Origin of resin polymerization shrinkage
  • The relationship between bond strength and shrinkage stress
  • Consequences of residual stress
  • Consequences of stress greater than the bond strength
  • The relationship between time and bond/stress development
  • Low-shrinkage materials – Do they work well? How do they work?
  • Comparison of various stress reduction methods
  • Correlation of residual stress, bond strength, and clinical performance of various adhesive restorative techniques

Series: Biomimetic Dentistry Tagged with: Adhesive Dentistry, Biomimetic Dentistry

Speakers

Dr. Matt Nejad - Lecture Headshot Download Portrait Download CV

Dr. Matt Nejad

Dr. Matt Nejad is an expert biomimetic and esthetic dentist practicing in Beverly Hills, CA. He is a Fellow of the Academy of Biomimetic Dentistry and serves as a Scientific Advisor to mentor and train dentists. He provides education and training in Biomimetic Dentistry through the Nejad Institute for Biomimetic Dentistry.

Dr. Nejad received his DDS degree from the Herman Ostrow School of Dentistry (University of Southern California School of Dentistry) in 2010. As a student, Dr. Nejad was mentored in a selective program run by Dr. Pascal Magne, known globally as the leading authority in esthetic dentistry and credited as the “father” of biomimetic dentistry.

Throughout his professional career, Dr. Nejad has committed substantial time and energy to advance the practice, education, and development of Biomimetic Dentistry. The Nejad Institute provides training and mentorship for dentists interested in learning Biomimetic Dentistry.

Today, Dr. Nejad is considered one of the top opinion leaders in the dental industry and he is a member of the ADA Standards Committee on Dental Products (SCDP). His areas of research and interest are adhesion, polymerization stress, residual stress, biomechanics, occlusion, and esthetics.

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