S1 E2: history chemistry and why they matter in dentistry

Sep 3, 2024

Lecture Notes on Adhesive Dentistry and Bonding Systems

Introduction

  • Early mentors such as Ray Bertolotti and John Kois emphasized the importance of seeking out scientific literature.
  • Mentors provided bibliographies that guided understanding of available science and research.
  • Importance of private practice decisions between fillings and crowns.
    • Inlays and onlays as intermediate solutions.
    • Role of adhesive dentistry in evolving these solutions.

Adhesive Dentistry Development

  • Ray Bertolotti introduced the adhesive approach for inlays and onlays.
  • Key literature accessed from libraries like the University of Utah Medical School.
  • Journals: "Operative Dentistry" and "Journal of Prosthetic Dentistry" provided insights.

Discoveries and Innovations

  • Adhesive dentistry advancements from Japan.
  • Introduction of Clearfil system by Japanese researchers.
  • Evolution of bonding systems:
    • Liner Bond series as key developments.
    • Simplification and dilution of science by Bertolotti.

Chemistry of Bonding Systems

  • Explanation of monomers and polymerization.
  • Introduction of initiators such as camphorquinone for photoactivation.
  • Historical bonding systems (1951 GPDM) and their polymerization processes.

Patent and Commercialization

  • Importance of patenting successful molecules.
  • GPDM molecule was initially patented in 1951 and rediscovered by companies in later years.
  • Use of patent searches to find viable bonding solutions.

Evolution of Bonding Systems

  • Ten-MDP molecule as a critical breakthrough.
  • Characteristics of 10-MDP:
    • Hydrophilic and effective in moist dentinal fields.
    • Capable of ionic bonding with dentin.

Advanced Bonding Systems and SE Bond

  • Introduction of self-etching systems like Liner Bond Two in 1997.
  • SE Bond as a gold standard with a patent on the ten-MDP molecule.
  • Shift towards photoactivation in adhesive processes.
  • Universal bonding systems developed post-2015, but inferior to previous systems.

Conclusion

  • Historical evolution and chemistry of bonding systems matter.
  • Future discussions on the use and misuse of universal bonding systems.
  • Sign off with a note on the importance of being "bonded" in dentistry.