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| Main Authors: | , , , , , , , , , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Frontiers in dental medicine
2025
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| Online Access: | https://pubmed.ncbi.nlm.nih.gov/41488341/ |
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Table of Contents:
- microchitosan-modified glass ionomer cement: assessment of mechanical properties. Tjandrawinata, Rosalina Kurniawan, Florencia Livia Marpaung, Carolina Pratiwi, Deviyanti Eddy, Eddy Putri, Tansza Setiana Komariah, Komariah Gunardi, Indrayadi Wijaya, Sastra Kusuma Cahyanto, Arief Glass ionomer cements (GIC) are valued as inherent fluoride-releasing dental restorative materials, while chitosan binds to negatively charged enamel surfaces, promoting mineral deposition and strengthening teeth. This study aimed to evaluate the mechanical properties of GIC modified with microchitosan derived from , using an experimental design. This study uniquely employs micro-scaled chitosan derived from the exoskeleton of Xylotrupes gideon, an insect-based, locally sourced, and environmentally sustainable alternative to conventional marine chitosan, to reinforce a conventional GIC. Microchitosan was extracted from and incorporated into conventional GIC at 0.5%, 1% and 2% (w/w). Compressive strength, diametral tensile strength, and surface microhardness were measured using standard testing equipment after immersion in artificial saliva for 24 h and 7 days. Statistical analysis was performed using one-way ANOVA followed by the Games-Howell test, with significance set at The 1% microchitosan-modified GIC exhibited the most significant improvements compared to the unmodified control. After 7 days, compressive strength increased by 35.4%, diametral tensile strength by 51.3%, and surface hardness by 46.6% ( The addition of 1% microchitosan derived from significantly improved the mechanical performance of GIC. This bioactive reinforcement shows promising potential for clinical restorative applications, though further investigation into its long-term biocompatibility and fluoride release is warranted. These findings highlight a novel combination of insect-derived micro-scale chitosan and conventional GIC, yielding mechanical gains comparable to those reported for nanochitosan-modified formulations while relying on a more sustainable chitosan source.