International Journal of Clinical Case Reports and Reviews Copy rights @ Ibrahim M. Hamouda et al Auctores Publishing – Volume 9(1)-162 www.auctoresonline.org ISSN: 2690-4861 Page 1 of 9 Shear Bond Strength of Repaired Ceramic-Metal Restorations Using Different Bonding Agents with Different Surface Treatments Ibrahim M. Hamouda 1,2 *, Enas M. Elddainony 3 , Mosaad A. ELgabrouny 3 , Fahim M. El-Shamy 2 1 Professor of Dental Biomaterials, College of Dentistry, Umm Alqura University, Makkah, KSA. 2 Professor of Dental Biomaterials, Faculty of Dentistry, Mansoura University, Mansoura, Egypt. 3 Assistant professor, Faculty of Dentistry, Suez Canal University, Egypt. *Corresponding Author: Ibrahim M. Hamouda, 1Professor of Dental Biomaterials, College of Dentistry, Umm Alqura University, Makkah, KSA. Received Date: 10 August 2021 | Accepted Date: 26 October 2021 | Published Date: 02 November 2021 Citation: Ibrahim M Hamouda, Enas M Elddainony, Mosaad A ELgabrouny, Fahim M El-Shamy. (2021). Shear Bond Strength of Repaired Ceramic-Metal Restorations Using Different Bonding Agents with Different Surface Treatments. International Journal of Clinical Case Reports and Reviews. 9(1); DOI:10.31579/2690-4861/162 Copyright: © 2021 Ibrahim M. Hamouda, This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Abstract Background: Fracture of ceramic-metal restorations is a major problem facing the dentists and the patients. There are several bonding systems currently available in the market to repair the fractured ceramic-metal restorations inside or outside the oral cavity. Purpose: The purpose of this study was to test the efficiency of repairing of metal-ceramic restorations using different bonding systems with different surface treatments. This efficiency was tested through the conduction of shear bond strength of the composite bonded to the porcelain and to nickel-chromium alloy using three different bonding agents (Excite, AdheSE, and Prompt L-Pop) with four different surface treatments (sandblasting and enchant, diamond stone roughening, sandblasting and hydrofluoric acid etching, or without surface treatment). Materials and Methods: A total of 120 specimens were prepared, 60 specimens from porcelain and 60 specimens from nickel-chromium alloy. Each group was divided into three equal subgroups, 20 specimens each, corresponding to the 3 bonding agents used. Each subgroup was further subdivided into four subgroups, 5 specimens each, corresponding to the surface treatment procedures. Bonding agents applied over all specimens and cured, followed by application of a micro- hybrid light-cured composite resin (Tetric Ceram).Thermal cycling was done for all specimens between 5°C and 55°C for 1000 cycles with a 10-second dwell time. Shear bond strength test was conducted using a universal testing machine at a cross-head speed of 0.5 mm/min. Results: The highest shear bond strength value recorded for the porcelain specimens bonded with Excite bonding agent with surface treatment sandblasting and hydrofluoric acid etching. In metal groups, the AdheSE bonding agent showed the highest shear bond strength value with the same surface treatment of the porcelain specimens. It was observed that sandblasting followed by hydrofluoric acid etching produced the most effective treatment method for porcelain and metal surfaces. Conclusion: The most effective technique for repairing metal ceramic restoration was sandblasting with hydrofluoric acid etching as surface treatment together with AdheSE or Excite bonding agents. Keywords: ceramo-metallic restorations; sandblasting; hydrofluoric acid etching; bonding agents Introduction Ceramic was first introduced to the dentistry for making denture teeth by De Chemant in 17th century and followed by Alex Duchateau [1]. Ceramic-metal restorations are widely used in dentistry because of excellent esthetic qualities and biocompatibility. Fracture in ceramic- metal restorations can occur and could be repaired because its replacements are not an economic solution [2]. A perfect repair of the fractured metal-ceramic restorations are the best solution in most of cases. There are two types of bonds, metal-resin bond and porcelain-resin bond, which involved in the repair process of ceramic-metal restorations. Surface configuration, reactivity of the bonding surfaces, and use of Open Access Research Article International Journal of Clinical Case Reports and Reviews Ibrahim M. Hamouda * AUCTORES Globalize your Research