Properly Utilizing Glass Ionomers Restorative Materials In Your Practice
You will receive 1 credit(s) of continuing education credit upon successful completion of this course. The purchase price of this course is $49.00

The purpose of this course is to help the reader to feel confident when treatment planning and placing glass ionomers in their practices. This will be done by discussing the strengths and weaknesses of the material as well as their appropriate usages and techniques.


Learning Objectives:
Upon completion of this course, the participant should be able to:
  1. Learn the strengths and weakness of glass ionomers as a restorative material
  2. Understand the history of evolution of these materials
  3. Review the different types of glass ionomers
  4. Understand the basic chemical reaction involved
  5. Determine the proper indications for placing glass ionomers
  6. Learn the proper techniques for placing these restorations
  7. Discuss the potential for future improvements of the material

Glass Ionomers have rapidly gained popularity as a dental restorative material due to their numerous positive physical characteristics and relative ease of use. However, these materials are still very technique sensitive and require a fundamental understanding of the chemistry involved in the glass ionomer’s reaction, as well as an understanding of important case selection criteria. This understanding will allow the practitioner to know in which instances these materials can be used successfully on their own or in conjunction with other restorative materials. Likewise, in an ever-changing marketplace, this knowledge will allow the dentist to evaluate new products as they come to the market.
  1. Intro
  2. Classifications of Glass Ionomers
    1. Conventional GI
      1. Product examples
    2. Resin Modified Glass Ionomers
      1. Product examples
  3. Composition and Chemistry
  4. Strengths of Conventional GI
    1. Fluoride release
    2. Physical properties
    3. Moisture Tolerance
  5. Weaknesses of Conventional GI
    1. Esthetics
    2. Physical Properties
  6. How Resin Modified Glass Ionomers Differ from Conventional
    1. Esthetics
    2. Command Setting
  7. Indications for Placing Glass Ionomers
    1. Sealants
    2. Pediatric restorations
    3. Protect Immature Enamel
    4. Sedative Fillings
    5. High Caries Risk Patients
    6. Class V’s and Non Carious Cervical Lesions
    7. Liners and Bases 
      1. Open Sandwich Technique
      2. Closed Sandwich Technique
    8. Atraumatic Restorative Treatment
  8. Proper Placement Techniques
    1. Conditioning of the Tooth
    2. Features of the Cavity Prep
    3. Light Cure vs. Self Cure
    4. Coating
    5. Finishing and Polishing 
  9. Potential Improvements to the Material
  10. Conclusion 

  1. National Institute of Dental and Craniofacial Research (NIDCR) 2009-2013 Strategic Plan. Bethesda, MD: US Dept of Health and Human Services, National Institutes of Health, NIDCR; 2009. NIH publication 09-7362. UP and Kishore G (2005) Glass Ionomer Cement – The Different Generations, Trends Biomater Artif Organs 18(2). 
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  3. Lohbauer U. (2010) Dental Glass Ionomer Cements as Permanent Filling Materials? – Properties, Limitations and Future Trends. Materials 3(1) 
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  5. Peumans et al, (2004) Clinical Effectiveness of contemporary adhesives: A systemic review. Acad Dent Mat, 21. 
  6. Glasspoole EA, Erickson RL and Davidson CL. (2002) Effect of Surface Treatments on the Bond Strength of Glass Ionomers to Enamel, Dent Mater 18(6). 
  7. Miyazaki, M., Moore, B. K. and Onose, H. (1996), Effect of surface coatings on flexural properties of glass ionomers. Eur J Oral Sci, 104 
  8. Chuang S-F, Jin Y-T, Tsai P-F and Wong T-Y. (2002) Effect of Various Surface Treatments on the Margin Microleakage of RMGI Cements. J Prosthet Dent, 86(3). 
  9. Lohbauer U, Kramer N, Siedschlag G et al. (2011) Strength and Wear Resistance of a Dental Glass Ionomer Cement With a Novel Nanofilled Coating. Am J Dent, 24(2). 
  10. Neelakantan P, John S, Anand S, Sureshbabu, N and Subbarao C. (2011) Fluoride Release From a New Glass Ionomer Cement. J Op Dent 36(1). 
  11. Berzins D. (2010) Resin-Modified Glass Ionomer Setting Reaction Competition. J Dent Res 89 (1). 
  12. Weigand A, Buchall W, Attin T. (2007) Review on fluoride-releasing restorative materials—Fluoride release and uptake characteristics, antibacterial activity and influence on caries formation, Dent Mat, 23(3). 
  13. Yoda A, Nidaido T, Ikeda M, Sonoda H et al. (2006) Effect of Curing Method and Storage Condition on Fluoride Ion Releasing Cement, J Dent Mater 25(2). 
  14. Peumans M, Kanumilli P, DeMunck J et al (2005) Clinical Effectiveness of Contemporary Adhesives: A systemic review of current clinical trials. Dent Mat, 21. 
  15. Friedl K, Hiller K-A, Friedl K-H (2011) Clinical Performance of a New Glass Ionomer Based Restoration System: A retrospective cohort study. Dent Mat, 27(10). 
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  17. Kasraei S, Azarsina M, Majidi S (2011) In Vitro Comparison of Microleakage of Posterior Resin Composites With and Without Liner Using Two-Step Etch and Rinse and Self-Etch Dentin Adhesive Systems. J Op Dent 36(2). 
  18. Sampaio PCP, de Almeida Jr, AA, Francisconi LF et al (2011) Effect of Conventional and Resin-Modified Glass Ionomer Liner On Dentin Adhesive Interface of Class I Cavity Walls After Thermocycling. J Op Dent 36(4). 
  19. Tam LE, Chan GP, Yim D (1997) In vitro caries inhibition effects by conventional and resin-modified glass-ionomer restorations. J Op Dent, 22(1). 
  20. Lucchesi JA, Santon VR, Amaral CM, Peruzzo DC and Duarte PM (2007) Coronally Positioned Flap for Treatment of Restored Root Surfaces: a 6 month clinical evaluation J Periodontol 78(4) 615-23. 
  21. Alkan A, Keskiner I and Yuzbasioglu E (2006) Connective Tissue Grafting on Resin Ionomer in Localized Gingival Recession. J Periodontol 77(8) 1446-51. 
  22. Santamaria MP, Ambrosano GM, Casati MZ, Nociti Junior FH, Sallum AW and Sallum EA. (2009) Conncective Tissue Graft Plus Resin-Modified Glass Ionomer restoration for the treatment of Gingival Recession Associated with Non-Carious Cervical Lesion: a randomized controlled study. J Periodontol 36(9) 791-8. 
  23. Santamaria MP, Feitosa DD, Nociti Junior FH, Casati, MZ, Sallum AW and Sallum EA. (2009) Cervical restoration and the amount of soft tissue coverage achieved by the coronally advanced flap: A 2-year follow-up randomized controlled clinical trial. J Periodontol 36(5) 434-41. 
  24. Glasspoole EA, Erickson RL and Davidson CL. (2002) Effect of Surface Treatments on the Bond Strength of Glass Ionomers to Enamel, Dent Mater 18(6) 454-62. 
  25. Markovic D, Petrovic B, Peric T, Miletic I and Andjelkovic S (2011) The impact of fissure depth and enamel conditioning protocols on glass ionomer and resin based sealant penetration. J Adhes Dent 13(2) 171-8. 
  26. Kikushima D, Shimada Y, Foxton RM and Tagami J (2005) Micro-shear bond strength of adhesive systems to cementum. Am J Dent 18(5) 364-8. 
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  29. Donly KJ (2011) Conservative glass ionomer cement occlusal restorations can be as effective as conventional amalgam occlusal restorations. J Evid Based Dent Pract 11(1) 52-3.

Published date 2012-2015

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