Evaluation of sealing ability and fracture resistance of teeth obturated by a newly developed bioceramic - based system smart Paste Bio : An in vitro study / Mostafa Mohammed Abdulbaset ; Supervised Reem Ahmed Lutfy , Shaimaa Ismail Gawdat
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قاعة الرسائل الجامعية - الدور الاول | المكتبة المركزبة الجديدة - جامعة القاهرة | Cai01.09.02.M.Sc.2015.Mo.E (Browse shelf(Opens below)) | Not for loan | 01010110071809000 | ||
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مخـــزن الرســائل الجـــامعية - البدروم | المكتبة المركزبة الجديدة - جامعة القاهرة | Cai01.09.02.M.Sc.2015.Mo.E (Browse shelf(Opens below)) | 71809.CD | Not for loan | 01020110071809000 |
Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Endodontics
The aim of this study was to evaluate the sealing ability and fracture resistance of the recently introduced calcium silicate bioceramic sealer, smart paste bio used in association with propoints compared to the gold standard pairing in endodontic obturation; AH Plus resin sealer and gutta-percha points. Fifty eight single-rooted mandibular premolars were used in this study. The teeth were decoronated, prepared using the ProTaper rotary system till F4 and obturated using single cone technique. The samples were divided randomly between the two main parts of the study. In the first part, the sealing ability test, twenty eight samples were used, while in the second part, fracture resistance test, thirty samples were employed. The samples of each part were then divided into four groups; two experimental groups and two control groups. Group A: Smart pPaste bio sealer+propoint PT F4. Group B: AH-plus resin sealer+Single gutta-percha F4. Group C: Negative control group. Group D: Positive control. Sealing ability test: All specimens in groups A, B and C were coated with two layers of nail varnish except the apical 2 mm, while the negative control group was completely sealed by the nail varnish till the apical foramen. Specimens were immersed in 2% methylene blue dye for 5 days. After being removed from the dye, the specimens were washed under tap water and dried. All roots were carefully sectioned perpendicular to the long axis with a diamond disc
Issued also as CD
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