03488cam a2200349 a 4500 EG-GiCUC 20250223032750.0 210616s2020 ua do f m 000 0 eng d EG-GiCUC eng EG-GiCUC eng Deposite M.Sc Cai01.09.03.M.Sc.2020.Ha.O Hamsa Ashraf Elgebaly One-year clinical assessment of indirect restorations fabricated from nano hybrid composite blocks versus ceramic blocks in badly broken teeth : A randomized clinical trial / Hamsa Ashraf Elgebaly ; Supervised Ahmed Elzohairy , Adel Eltannir, Shereen Hafez Ibrahim دراسة سريرية عشوائية : التقييم الإكلينيكى لمدة عام للترميمات الغير مباشرة المصممة بالكمبيوتر لمادة الكومبوزيت مقارنة بمادة السيراميك فى الاسنان المحطمة Cairo : Hamsa Ashraf Elgebaly , 2020 148 P. : charts , photographs ; 25cm Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Operative Dentistry Background: Resin composite blocks (Grandio blocs) has been developed which are characterized by high filler loading (86%) as well as less chipping and crack introduction during manufacturing. Furthermore, they are more easily fabricated, do not require post-milling crystallization cycle as ceramics or additional curing cycle, easily repaired, compatible with milling machine and exhibit better marginal quality. They are also indicated in restoring large complex cavities. This would be the first randomized clinical trial to validate the clinical performance of Grandio CAD/CAM composite blocks in restoring badly broken vital teeth over 1 year. Aim: The current study was conducted to compare one-year clinical performance of indirect restoration fabricated from nano hybrid composite CAD/CAM blocks and ceramic blocks in restoration of badly broken vital teeth Methods and Materials: In two parallel groups (n= 42 restorations), 39 participants having badly broken vital teeth minimum of two remaining wall were randomly enrolled in this trial and received either resin composite blocks (Grandio, VOCO, Germany) or ceramic blocks (E.max). Fabricated restorations were cemented according to the manufacturers{u2019} instructions with the corresponding adhesive system. The restorations were assessed using modified USPHS criteria by two independent blinded assessors at baseline and 1-year follow up visits. Data was obtained and analyzed using Independent Student-t test, Chi-square and McNemar test for inter and intragroup comparisons. The significance level was set at P {u2264} 0.05.Results: All the 39 participants completed the trial. There was no statistically significant difference between both tested materials for all USPHS criteria except for cavo-surface marginal discoloration favoring Grandio blockson of badly broken vital posterior teeth Issued also as CD All ceramic restoration CAD/CAM composite restoration Randomized clinical trial Adel Eltannir, Supervising Ahmed Elzohairy , Supervising Shereen Hafez Ibrahim , Supervising http://172.23.153.220/th.pdf Amira Cataloger Nazla Revisor ddc TH 81307 81307 ddc 0 CUCL cl210 2024-02-11 Cai01.09.03.M.Sc.2020.Ha.O 01010110083677000 2023-09-22 00:00:00 TH ddc 0 CUCL cl2u8 2024-02-11 Cai01.09.03.M.Sc.2020.Ha.O 01020110083677000 2023-09-22 00:00:00 83677.CD CD