Session
Moderator
Dr.10/ 3(Sat)
15:15 - 16:45
4F〜6F ホール C
Session 13
From Glass Ionomers to Glass Hybrids: 50 Years of Innovation
グラスアイオノマーからグラスハイブリッドへ
～半世紀の技術革新～
Fifty years have passed since the introduction of GIC. This session highlights key innovations over the past half‑century, including the synergistic effects of combining GIC and SDF in managing root caries, strategies for achieving a sustainable and effective transition to an amalgam‑free practice in the post‑amalgam era, and the latest evidence on glass‑hybrid restoratives that offer remarkable improvements in durability and clinical performance. Join us to explore how these technological advances are reshaping everyday clinical practice and to envision the future of restorative dentistry.
Lecturer
New concept of dentin caries management using GIC and SDF
New concept of dentin caries management using GIC and SDF
- Describe microbiome difference of dentin caries
- Summarize effect of fluoride on dentin caries
- Describe effects of GIC and SDF on dentin remineralization
- Describe microbiome difference of dentin caries
- Summarize effect of fluoride on dentin caries
- Describe effects of GIC and SDF on dentin remineralization
Dental caries remains one of the most prevalent global diseases across the lifespan. For elderly populations, root caries management is a critical challenge due to increased root exposure from gingival recession and reduced salivary flow.
Glass ionomer cement (GIC) has widely gained attention as a restorative material for root caries, owing to its potent anti-caries properties and remineralization potential. Additionally, silver diamine fluoride (SDF) is clinically utilized to arrest root caries progression through its robust bactericidal effects. Our study results showed the combination treatment of GIC and SDF showed a synergistic effect in dentin remineralization more effectively than single-material applications. This result suggests that the combined application of GIC and SDF significantly enhances root caries remineralization compared to the use of either material alone.
Glass ionomer cement (GIC) has widely gained attention as a restorative material for root caries, owing to its potent anti-caries properties and remineralization potential. Additionally, silver diamine fluoride (SDF) is clinically utilized to arrest root caries progression through its robust bactericidal effects. Our study results showed the combination treatment of GIC and SDF showed a synergistic effect in dentin remineralization more effectively than single-material applications. This result suggests that the combined application of GIC and SDF significantly enhances root caries remineralization compared to the use of either material alone.
Lecturer
Navigating the Post-Amalgam Era:
Policy, Practice, and Economic Impact
Navigating the Post-Amalgam Era:
Policy, Practice, and Economic Impact
- Describe the key international and national policy drivers accelerating the reduction and elimination of dental amalgam use, including the Minamata Convention and emerging regulatory responses.
- Evaluate the clinical implications of shifting from amalgam to alternative restorative materials, including effects on technique sensitivity, longevity, workflow, and patient communication.
- Analyze the short- and long-term economic impacts of the transition on dental practices, payers, and health systems, including material costs, chair time, reimbursement structures, and preventive care models.
- Identify opportunities to optimize care delivery in the post-amalgam era through enhanced prevention, minimally invasive dentistry and evidence-informed material selection.
- Formulate strategic actions for practice and policy adaptation, supporting a sustainable and clinically effective transition to amalgam-free dentistry.
- Describe the key international and national policy drivers accelerating the reduction and elimination of dental amalgam use, including the Minamata Convention and emerging regulatory responses.
- Evaluate the clinical implications of shifting from amalgam to alternative restorative materials, including effects on technique sensitivity, longevity, workflow, and patient communication.
- Analyze the short- and long-term economic impacts of the transition on dental practices, payers, and health systems, including material costs, chair time, reimbursement structures, and preventive care models.
- Identify opportunities to optimize care delivery in the post-amalgam era through enhanced prevention, minimally invasive dentistry and evidence-informed material selection.
- Formulate strategic actions for practice and policy adaptation, supporting a sustainable and clinically effective transition to amalgam-free dentistry.
The global phase-down and phase-out of dental amalgam is reshaping oral health policy, clinical practice, and economic planning. As regulatory frameworks evolve in response to environmental agreements and public expectations, dental care systems must reorient toward preventive and minimally invasive-restorative strategies. This presentation synthesizes current policy developments, evaluates the clinical and operational implications for dental practitioners, and analyzes the cost and reimbursement consequences for health systems. By integrating a clinical and economic perspectives, it provides a roadmap for navigating the transition to a sustainable, evidence-based post-amalgam era.
Lecturer
Glass Hybrids:
Evolution, Evidence, and Clinical Impact
Glass Hybrids:
Evolution, Evidence, and Clinical Impact
- Identify key compositional innovations in glass-hybrid materials.
- Summarize improvements in setting kinetics, strength, and wear resistance.
- Describe bioactive features such as fluoride release and chemical adhesion.
- Identify key compositional innovations in glass-hybrid materials.
- Summarize improvements in setting kinetics, strength, and wear resistance.
- Describe bioactive features such as fluoride release and chemical adhesion.
Glass-hybrid materials represent a major development in glass ionomer technology, designed to improve mechanical performance, longevity, and clinical reliability. Through optimized fluoro-aluminosilicate glass reactivity, incorporation of highly dispersed ultrafine fillers, and reinforcement of the polyacrylic matrix, these next-generation materials exhibit faster setting, increased wear resistance, and superior flexural strength compared with conventional glass ionomers. They also maintain sustained fluoride release and chemical adhesion to tooth structure, supporting bioactivity and long-term stability at the tooth–material interface. Clinical studies indicate that glass-hybrid restoratives provide a reliable and biologically favorable option for posterior teeth, combining enhanced mechanical properties with positive clinical outcomes.
