M Habibkhodaei, R Mosharraf, O Savabi, F Salehi Ghalesefid
{"title":"反复烧结对氧化锆增强型硅酸锂和二硅酸锂陶瓷颜色稳定性的影响","authors":"M Habibkhodaei, R Mosharraf, O Savabi, F Salehi Ghalesefid","doi":"10.1922/EJPRD_2466Habibkhodaei07","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>The purpose of this invitro study was to assess the changes in the color attributes of high-translucency (HT) lithium disilicate and zirconia-reinforced lithium silicate in BL3/0M1, A1, A2, and A3 shades during first, second, and third firing cycles.</p><p><strong>Materials and methods: </strong>Eighty specimens of two ceramic systems (IPS e.max CAD and Vita Suprinity) in BL3/0M1, A1, A2, and A3 shades, were prepared in thickness of 1 mm (n=10). Each group was subjected to 3 firing cycles and the CIE L*a*b* color parameters of specimens were measured after each firing cycle by a reflectance spectrophotometer. The color change (ΔE) between each two firing cycles was calculated by the relevant equation. Data were analyzed by one-way ANOVA and Tamhane post hoc test.</p><p><strong>Results: </strong>All ΔE values were significant (P⟨0.001) except for ΔE2-1 (color difference between second and first firing) and ΔE3-2 (color difference between third and second firing) in A2 shade of IPS e.max (P=0.436) and ΔE2-1 and ΔE3-2 in 0M1 shade of Suprinity (P=0.345).</p><p><strong>Conclusion: </strong>Repeated firing resulted in generally higher ΔE in ZLS than LDS, and 0M1 Suprinity experienced maximum ΔE after repeating firing.</p>","PeriodicalId":45686,"journal":{"name":"European Journal of Prosthodontics and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":1.1000,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of Repeated Firings on Color Stability of Zirconia- Reinforced Lithium Silicate and Lithium Disilicate Ceramics.\",\"authors\":\"M Habibkhodaei, R Mosharraf, O Savabi, F Salehi Ghalesefid\",\"doi\":\"10.1922/EJPRD_2466Habibkhodaei07\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Purpose: </strong>The purpose of this invitro study was to assess the changes in the color attributes of high-translucency (HT) lithium disilicate and zirconia-reinforced lithium silicate in BL3/0M1, A1, A2, and A3 shades during first, second, and third firing cycles.</p><p><strong>Materials and methods: </strong>Eighty specimens of two ceramic systems (IPS e.max CAD and Vita Suprinity) in BL3/0M1, A1, A2, and A3 shades, were prepared in thickness of 1 mm (n=10). Each group was subjected to 3 firing cycles and the CIE L*a*b* color parameters of specimens were measured after each firing cycle by a reflectance spectrophotometer. The color change (ΔE) between each two firing cycles was calculated by the relevant equation. Data were analyzed by one-way ANOVA and Tamhane post hoc test.</p><p><strong>Results: </strong>All ΔE values were significant (P⟨0.001) except for ΔE2-1 (color difference between second and first firing) and ΔE3-2 (color difference between third and second firing) in A2 shade of IPS e.max (P=0.436) and ΔE2-1 and ΔE3-2 in 0M1 shade of Suprinity (P=0.345).</p><p><strong>Conclusion: </strong>Repeated firing resulted in generally higher ΔE in ZLS than LDS, and 0M1 Suprinity experienced maximum ΔE after repeating firing.</p>\",\"PeriodicalId\":45686,\"journal\":{\"name\":\"European Journal of Prosthodontics and Restorative Dentistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2024-11-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"European Journal of Prosthodontics and Restorative Dentistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1922/EJPRD_2466Habibkhodaei07\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"DENTISTRY, ORAL SURGERY & MEDICINE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"European Journal of Prosthodontics and Restorative Dentistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1922/EJPRD_2466Habibkhodaei07","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}
Effect of Repeated Firings on Color Stability of Zirconia- Reinforced Lithium Silicate and Lithium Disilicate Ceramics.
Purpose: The purpose of this invitro study was to assess the changes in the color attributes of high-translucency (HT) lithium disilicate and zirconia-reinforced lithium silicate in BL3/0M1, A1, A2, and A3 shades during first, second, and third firing cycles.
Materials and methods: Eighty specimens of two ceramic systems (IPS e.max CAD and Vita Suprinity) in BL3/0M1, A1, A2, and A3 shades, were prepared in thickness of 1 mm (n=10). Each group was subjected to 3 firing cycles and the CIE L*a*b* color parameters of specimens were measured after each firing cycle by a reflectance spectrophotometer. The color change (ΔE) between each two firing cycles was calculated by the relevant equation. Data were analyzed by one-way ANOVA and Tamhane post hoc test.
Results: All ΔE values were significant (P⟨0.001) except for ΔE2-1 (color difference between second and first firing) and ΔE3-2 (color difference between third and second firing) in A2 shade of IPS e.max (P=0.436) and ΔE2-1 and ΔE3-2 in 0M1 shade of Suprinity (P=0.345).
Conclusion: Repeated firing resulted in generally higher ΔE in ZLS than LDS, and 0M1 Suprinity experienced maximum ΔE after repeating firing.
期刊介绍：
The European Journal of Prosthodontics and Restorative Dentistry is published quarterly and includes clinical and research articles in subjects such as prosthodontics, operative dentistry, implantology, endodontics, periodontics and dental materials.
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