FAILURE MODE OF 2 FIBER POSTS BONDED USING 3 DIFFERENT ADHESIVE SYSTEMS | ||||
| Egyptian Dental Journal | ||||
| Article 27, Volume 64, Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics), April 2018, Page 1639-1645 PDF (884.38 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/edj.2018.78399 | ||||
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| Authors | ||||
| Adel Ahmed Siddiq1; Mohammad M Rayyan2; Lucette Segaan3; Ehab A. Farghaly4; Ghada E Hamza5 | ||||
| 1Clinical Instructor of Prosthodontics, Faculty of dentistry, Beirut Arab University, Beirut, Lebanon | ||||
| 2Associate Professor of Prosthodontics, Beirut Arab University, Faculty of Dentistry, Assistant Professor of Fixed Prosthodontics, Faculty of Dentistry, Misr University for Science and Technology, Cairo, Egypt | ||||
| 3Professor of Prosthodontics, Faculty of dentistry, Beirut Arab University, Beirut, Lebanon | ||||
| 4Lecturer of Fixed Prosthodontics, Faculty of Dentistry, Misr University for Science and Technology, Cairo, Egypt | ||||
| 5Lecturer of Fixed and Removable Prosthodontics Department, Oral and Dental Research Division, National Research Center, Cairo, Egypt | ||||
| Abstract | ||||
| Purpose: evaluate the bond strength of 2 fiber post systems to root canal dentine using 3 different protocols of dual-cure resin cements. Materials and methods: Fifty-four freshly extracted human mandibular premolars were decoronated and endodontically treated. Post spaces were prepared to a depth of 8 mm and width of 1.3 mm, using manufacture’s supplied drills. Teeth were randomly assigned into 2 groups (n= 27), according to fiber post light-transmission: group I; non-light transmitting fiber posts (Reforpost, Angelus; Brasil), group II; light transmitting fiber post (Exacto, Angelus; Brasil). Each group were further divided into 3 subgroups (n=9) according to the adhesive protocol used (subgroup A; “SpeedCEM” self-adhesive, subgroup B; “Multilink Automix” self-etch, subgroup C; “Variolink II” total etch); “Ivoclar Vivadent; Liechtenstein”. Using low speed saw (IsoMet, BUEHLER Worldwide Headquarters; USA), a 2 mm thickness coronal, middle and apical sections were obtained from each sample. All specimens were subjected to push out test using Instron machine (Lloyd Instruments Ltd; UK), until failure. Specimens were investigated under the stereomicroscope (BM1000; Jiangan Novle Optics Co., China) to study the mode of failure. Data was collected and statistically analyzed. Results: In non-light transmitting group (GI); self-etch scored highest cohesive values (13), followed by self-adhesive (7) and finally total-etch (6). Regarding light transmitting group (GII); highest score was found in total-etch (11), followed by self-etch (8), and finally the self-adhesive(1). Conclusions: Self-etch resin cement with a non-light transmitting fiber post might be a good choice to be used | ||||
| Keywords | ||||
| Self-etch resin cement with a non-light transmitting fiber post may be a good restorative choice for endodontically treated teeth | ||||
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