{"title":"两种不同厚度陶瓷的对比度比较","authors":"Porak Sethakamnerd, C. Leevailoj","doi":"10.1109/TICST.2015.7369348","DOIUrl":null,"url":null,"abstract":"Purpose: To compare and evaluate the influence of material type and thickness on contrast ratio. Materials and Methods : A total of 36 disc-shaped specimens (15 mm diameter × 0.5 and 1.0 mm thicknesses) were fabricated from IPS e.max Press (n=12), Lava Plus (n=12), Lava Plus + Lava Ceram shade MO W1 (n=12). Contrast ratio was analyzed with two way ANOVA (P<;.05). Results: Contrast ratio of IPS e.max Press at 0.5 and 1.0 mm showed highest value (73.27 ± 4.37 and 87.30 ± 0.58) when compared to Lava Plus + Lava Ceram and Lava Plus groups. Higher contrast ratio significantly related to thicker material. Conclusion: Ceramic type and thickness had significant effect on contrast ratio. Contrast ratio increase as thickness increase.","PeriodicalId":251893,"journal":{"name":"2015 International Conference on Science and Technology (TICST)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Comparison of contrast ratio of two ceramics in two different thicknesses\",\"authors\":\"Porak Sethakamnerd, C. Leevailoj\",\"doi\":\"10.1109/TICST.2015.7369348\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Purpose: To compare and evaluate the influence of material type and thickness on contrast ratio. Materials and Methods : A total of 36 disc-shaped specimens (15 mm diameter × 0.5 and 1.0 mm thicknesses) were fabricated from IPS e.max Press (n=12), Lava Plus (n=12), Lava Plus + Lava Ceram shade MO W1 (n=12). Contrast ratio was analyzed with two way ANOVA (P<;.05). Results: Contrast ratio of IPS e.max Press at 0.5 and 1.0 mm showed highest value (73.27 ± 4.37 and 87.30 ± 0.58) when compared to Lava Plus + Lava Ceram and Lava Plus groups. Higher contrast ratio significantly related to thicker material. Conclusion: Ceramic type and thickness had significant effect on contrast ratio. Contrast ratio increase as thickness increase.\",\"PeriodicalId\":251893,\"journal\":{\"name\":\"2015 International Conference on Science and Technology (TICST)\",\"volume\":\"66 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 International Conference on Science and Technology (TICST)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/TICST.2015.7369348\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 International Conference on Science and Technology (TICST)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/TICST.2015.7369348","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
摘要
目的:比较评价材料类型和厚度对对比度的影响。材料与方法:采用IPS e.max Press (n=12)、Lava Plus (n=12)、Lava Plus + Lava Ceram shade MO W1 (n=12)共制作36个圆盘状标本(直径15mm × 0.5和1.0 mm厚度)。对比分析采用双因素方差分析(P<; 0.05)。结果:与Lava Plus + Lava Ceram和Lava Plus组相比，IPS e.max Press在0.5和1.0 mm处的对比度最高，分别为73.27±4.37和87.30±0.58。对比度越高，材料越厚。结论:陶瓷类型和厚度对对比度有显著影响。对比度随着厚度的增加而增加。
Comparison of contrast ratio of two ceramics in two different thicknesses
Purpose: To compare and evaluate the influence of material type and thickness on contrast ratio. Materials and Methods : A total of 36 disc-shaped specimens (15 mm diameter × 0.5 and 1.0 mm thicknesses) were fabricated from IPS e.max Press (n=12), Lava Plus (n=12), Lava Plus + Lava Ceram shade MO W1 (n=12). Contrast ratio was analyzed with two way ANOVA (P<;.05). Results: Contrast ratio of IPS e.max Press at 0.5 and 1.0 mm showed highest value (73.27 ± 4.37 and 87.30 ± 0.58) when compared to Lava Plus + Lava Ceram and Lava Plus groups. Higher contrast ratio significantly related to thicker material. Conclusion: Ceramic type and thickness had significant effect on contrast ratio. Contrast ratio increase as thickness increase.
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