Water Sorption, Solubility and Surface Properties of CAD-CAM Materials
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Abstract
The purpose of this research was to examine water sorption, solubility, and surface properties of three widely used CAD-CAM materials: resin composite (Cerasmart; CS), polymer-infiltrated ceramic network (Vita Enamic; VE) and lithium disilicate glass ceramic (IPS e.max CAD; LS). Therefore, 45 rectangular-shaped specimens were prepared and immersed in deionized water for varying durations at 7 days, 1 month and 6 months. These specimens were then subjected to a range of tests, including water sorption, solubility, hardness and roughness. The result showed that immersion time significantly impacted water sorption among tested materials (p<0.001). However, there were no significant differences in solubility between materials at each time point of the water immersion process (p>0.05). The 2-way ANCOVA revealed that water immersions had significant effects on hardness among tested CAD-CAM blocks (p<0.001), while there were no significant differences on roughness (p>0.05). Moreover, the study found that there were no significant differences on roughness within IPS e.max CAD group at every time point (p>0.05), while Cerasmart exhibited a similar trend compared to Vita Enamic, where surface properties showed significant differences among 7 days and 6 months of water immersions (p<0.05). The correlation analysis showed statistically significant differences between water sorption and hardness, water sorption and roughness (p<0.001). Overall, assessment of IPS e.max CAD, Vita Enamic, and Cerasmart, exhibited different levels of water sorption when subjected to prolonged water immersion for up to 6 months. Both aged and unaged specimens of these materials showed similar sorption and solubility during immersion process. However, water sorption influenced their hardness and roughness after immersion. Although these materials displayed varying degrees of water sorption, hardness, and roughness, they did not exhibit significant differences in solubility after 6 months of water immersion.
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บทความ ข้อมูล เนื้อหา รูปภาพ ฯลฯ ที่ได้รับการลงตีพิมพ์ในวิทยาสารทันตแพทยศาสตร์ มหาวิทยาลัยขอนแก่นถือเป็นลิขสิทธิ์เฉพาะของคณะทันตแพทยศาสตร์ มหาวิทยาลัยขอนแก่น หากบุคคลหรือหน่วยงานใดต้องการนำทั้งหมดหรือส่วนหนึ่งส่วนใดไปเผยแพร่ต่อหรือเพื่อกระทำการใด ๆ จะต้องได้รับอนุญาตเป็นลายลักษณ์อักษร จากคณะทันตแพทยศาสตร์ มหาวิทยาลัยขอนแก่นก่อนเท่านั้น
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