Bulkfills: Polymerization Shrinkage is the Enemy

Raymond L. Bertolotti, DDS, PhD

Raymond L. Bertolotti, DDS, PhD

Wednesday, May 24, 2023
5:00 pm PST / 8:00 pm EST

A breakthrough development helps dentists close the gap due to polymerization shrinkage.

For assured success in composite fillings, the tooth bond to composite interface must be sealed – no gap. Therefore, polymerization shrinkage is the enemy in bulkfill composites when bacteria is allowed to get in the resulting gaps. The high shrinking stress tends to break the bond to the tooth, leading to a gap or white line (fracture) when on enamel. Fortunately, there is a major development to overcome polymerization shrinkage issues.

Dr. Raymond L. Bertolotti presents Bulkfills: Polymerization Shrinkage is the Enemy and shares the latest clinical research that is proving to be a game changer in composites. Through lectures, images, and video examples, you’ll learn how to “close the gap” between composite fillings and teeth for more successful and effective dentistry.

Learning Objectives:

  • Learn why bulkfill composites don’t make sense.
  • Discover a new polymerization chemistry that effectively pulls the composite toward the bond and closes any gaps.
  • Avoid post-op bite pressure sensitivity and recurrent caries.
  • Compare microleakage at the cervical margin for multiple products.
  • Learn how to eliminate the white line or microfracture of the enamel due to polymerization stress.
  • Review laboratory tests on leakage affecting the critical gingival margin on a Class II composite.

This webinar is free to attend. We offer 1.5 CE for DOCS Members and Trial Members who attend the live presentation.

If you are not yet a Member but would like to earn the 1.5 CE for attending, as well as experience the many benefits of DOCS Membership, consider joining as a Trial Member for only $1.* There is no obligation or risk; cancel anytime.

Webinar Details:

Title: Bulkfills: Polymerization Shrinkage is the Enemy
Date & Time: Wednesday, May 24, 2023 at 5:00 pm Pacific / 8:00 pm Eastern
Presented By: Raymond L. Bertolotti, DDS, PhD
CE Credits: 1.5
Cost: $0

About the Presenter(s):

Raymond L. Bertolotti, DDS, PhD received his DDS degree from the University of California, San Francisco, after working as a PhD metallurgical and ceramic engineer at Sandia National Laboratories. He is currently a Clinical Professor in Biomaterials Science at the University of California, San Francisco. In addition to authoring four dental textbook chapters, Dr. Bertolotti has published extensively in journals such as the American Dental Association, International Journal of Prosthodontics, Journal of Dental Research and Quintessence International. He is a Fellow of the American Academy of Dental Materials, a Fellow of the American College of Dentists, a Fellow of the Pierre Fauchard Academy, and an Accredited Member of the Academy of Cosmetic Dentistry. Dr. Bertolotti is a renowned international lecturer, having presented at all of the major dental meetings such as the ADA, Hinman, Chicago Midwinter and invited lectures in over 30 countries.


*Trial Membership Offer is open to dentists who have not participated in the Trial Membership program within the past two (2) years. After 60 days, if not cancelled, the Trial Membership will upgrade to a Standard Membership at $54.95/mo for a one-year commitment. Refer to terms of service for details.


DOCS Education is designated as an Approved PACE Program Provider by the Academy of General Dentistry. The formal continuing education programs of this program provider are accepted by the AGD for Fellowship/Mastership and membership maintenance credit. Approval does not imply acceptance by a state or provincial board of dentistry or AGD endorsement. The current term of approval extends from 09/17/2000 to 12/31/2026. Provider ID# 217651.

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