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The effect of different oral media on the surface roughness and color stability of two milled esthetic materials / Ayman Abdrabu Abomousa ; Supervised Gihan Abdelhady Elnaggar , Lamia Sayed Kheiralla

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Ayman Abdrabu Soliman Abomousa , [2014]Description: 84 Leaves : facsimiles , photographs ; 30cmOther title:
  • تأثير الأوساط المختلفه على خشىونة السطح و ثباث اللون لنوعين من المواد التجميلية السنية المخروطة [Added title page title]
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Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Prosthodontics Summary: This study was carried out aiming to shed the light on the effects of different oral media on the surface roughness and color changes of two esthetic restorations. In this study a total of thirty disc samples were machine milled by the aid of CAD / CAM system. The samples were divided according to the material of construction into two main groups. Each group was composed of 15 samples (lava ultimate resin nano ceramic blocks - IPS empress II ceramic blocks). All sample groups were then immersed in 20 ml of artificial saliva for 24 hours to make baseline assessments of surface roughness. Each group was further subdivided into three subgroups, each of five samples according to the type of immersion media. As following: Subgroup (1): Samples were immersed in mirinda orange media for 12 days. Subgroup (2): Samples were immersed in a topical fluoride agent for 6 hours. Subgroup (3): Samples were immersed in coffee for 3 weeks. All immersion times were equivalent to consumption of the materials of immersion media for one year by the patient. For quantitative evaluation of surface roughness, all samples were subjected to profilemetric measurements following immersion in different immersion media
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Item type Current library Home library Call number Copy number Status Date due Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.09.09.M.Sc.2014.Ay.E (Browse shelf(Opens below)) Not for loan 01010110065209000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.09.09.M.Sc.2014.Ay.E (Browse shelf(Opens below)) 65209.CD Not for loan 01020110065209000

Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Prosthodontics

This study was carried out aiming to shed the light on the effects of different oral media on the surface roughness and color changes of two esthetic restorations. In this study a total of thirty disc samples were machine milled by the aid of CAD / CAM system. The samples were divided according to the material of construction into two main groups. Each group was composed of 15 samples (lava ultimate resin nano ceramic blocks - IPS empress II ceramic blocks). All sample groups were then immersed in 20 ml of artificial saliva for 24 hours to make baseline assessments of surface roughness. Each group was further subdivided into three subgroups, each of five samples according to the type of immersion media. As following: Subgroup (1): Samples were immersed in mirinda orange media for 12 days. Subgroup (2): Samples were immersed in a topical fluoride agent for 6 hours. Subgroup (3): Samples were immersed in coffee for 3 weeks. All immersion times were equivalent to consumption of the materials of immersion media for one year by the patient. For quantitative evaluation of surface roughness, all samples were subjected to profilemetric measurements following immersion in different immersion media

Issued also as CD

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