Six Lessons Approach Podcast by Dr. David Alleman

Flow and Dental Composites

Jan 11, 2024

Explore the evolution of dental bonding systems, advancements in composite behavior, and the importance of bonding strength in dental composites. Discover how visualizing molecular movement during polymerization can lead to more predictable bonds and successful restorations.

31:23

Episode guests

David Alleman

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Episode notes

Podcast summary created with Snipd AI

Quick takeaways

Visualization of polymerization flow aids in creating predictable bonds in enamel substrates.

Configuration factor (C-factor) impacts stress distribution in composite restorations during polymerization.

Deep dives

Evolution of Dental Bonding Systems

The podcast delves into the evolution of dental bonding systems from the introduction of Clear-Fill F1 in 1978, marking a shift in adhesive dentistry by enabling tooth-colored fillings. The discussion highlights the significant developments in bonding to enamel and dentin, underscoring the importance of integrating techniques for biomac restorations. Through literature reviews and references, the episode explores foundational articles that laid the groundwork for understanding composite polymerization dynamics.

Introduction

3min

Evolution of Dental Bonding Systems

7min

Advancements in Bonding Systems and Composite Behavior

13min

Understanding Dental Composites: Evolution and Polymerization Process

6min

Exploring the Importance of Bonding Strength in Dental Composites

2min

We are able to visualize how molecules move during polymerization thanks to the work of Carel L Davidson in the 1980s. Being able to visualize and then measure this movement, also known as flow, helps create more predictable bonds when working with different substrates in enamel, but Dr. David Alleman took years to systematize this concept into his practice as he was developing his concept of Decoupling with Time.

Articles referenced in this episode:

Alleman DS. Decoupling with time. A solution to the problem of the hierarchy of bondability. Inside Dent. 2021;August: 35-41
Fusayama T. A Simple Pain-Free Adhesive Restorative System by Minimal Reduction and Total Etching. 2nd Edition. Ishiyaku EuroAmerica, Inc.; 1993
Davidson CL, de Gee AJ. Relaxation of polymerization contraction stresses by flow in dental composites. J Dent Res. 1984: 146-148
Davidson CL, de Gee AJ, Feilzer A. The competition between the composite-dentin bond strength and the polymerization contraction stress. J Dent Res. 1984;63(12): 1396-1399
Feilzer A, de Gee AJ, Davidson CL. Setting stress in composite resin in relation to configuration of the restoration. J Dent Res. 1987;66(11): 1636-1639
Kemp-Sholte CM, Davidson, CL. Complete marginal seal of Class V resin composite restorations effected by increased flexibility. J Dent Res. 1990 Jun;69(6):1240-3.
Lu H, Stansbury JW, Bowman CN. Towards the elucidation of shrinkage stress development and relaxation in dental composites. Dent. Mater. 2004;20: 979-986
Nikolaenko SA, Et al. Influence of c-factor and layering technique on microtensile bond strength to dentin. Dent. Mater. 2004;20-579-585

Send us a text

New 2025 training programs announced:
Biomimetic Mastership - class starts February 10. Learn more and register at allemancenter.com/mastership

In-Person SLA Workshop Dates:

April 25-26
August 8-9
October 24-25
December 12-13

Learn more and register at allemancenter.com/training

Learn more about Dr. Alleman's work at training programs at allemancenter.com.

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