Shear Bond Strength of Repair Systems to New CAD/CAM Restorative Materials

2016 ◽  
Vol 27 (8) ◽  
pp. 748-754 ◽  
Author(s):  
Özlem Üstün ◽  
Işıl Keçik Büyükhatipoğlu ◽  
Aslı Seçilmiş
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Restorative Materials ◽  
Cad Cam ◽  
Repair Systems

scholarly journals The micro-shear bond strength of two different repair systems to indirect restorative materials

2020 ◽  
Vol 7 (4) ◽  
pp. 233-241
Author(s):  
Atay Ayșe ◽  
◽  
Najafova Lamia ◽  
Kurtulmus Huseyin Mehmet ◽  
Üşümez Aslihan ◽  
...  
Keyword(s):  
Phosphoric Acid ◽  
Bond Strength ◽  
Shear Bond Strength ◽  
Failure Modes ◽  
Composite Resins ◽  
Acid Mixture ◽  
Repair System ◽  
Restorative Materials ◽  
Cad Cam ◽  
Repair Systems

Introduction The aim of this study was to evaluate the micro-shear bond strength (μSBS) of different repair systems (Clearfil Repair, iGOS Repair) to restorative materials for CAD/CAM (Cerasmart, Lava Ultimate, InCoris TZI , VITA Suprinity, VITA Mark II, IPS e.max CAD, IPS Empress CAD). Methodology The 140 1.2 mm-thick specimens were prepared from CAD/CAM blocks (n=20) and thermocycled (10,000 cycles, 5–55°C, dwell time 20s). The specimens were randomly divided into two groups according to the repair system: Clearfil Repair (40% phosphoric acid+mixture of Clearfil Porcelain Bond Activator and Clearfil SE Bond Primer+Clearfil SE Bond+CLEARFIL MAJESTY ES-2) and iGOS Repair (40% phosphoric acid+ Multi Primer LIQUID+ iGOS Bond+ iGOS Universal). The composite resins were polymerized. All specimens were stored in distilled water at 37°C for 24 hours. The μSBS test was performed with a micro-shear testing machine (at 1 mm/min). The data were analyzed using two-way ANOVA, Tukey’s multiple comparison tests at a significance level of p<0.05. Each failure modes were examined under a stereomicroscope at×16 magnification. Results The type of CAD/CAM restorative material and repair system showed a significant effect on the μSBS (p<0.05). Specimens repaired with the iGOS Repair system showed the highest μSBS values than the Clearfil Repair system among all tested materials except for the InCoris TZI group (p<0.05). Conclusion All groups, except for the InCoris TZI group, repaired with iGOS Repair system showed higher μSBS than Clearfil Repair. The type of restoration and repair material is important in the success of the fracture repair.

scholarly journals Effect of immediate dentin sealing, bonding technique, and restorative material on the bond strength of indirect restorations

2020 ◽  
Vol 23 (2) ◽  
Author(s):  
Bilal Utku Sag ◽  
Ozden Ozel Bektas
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Tooth Surface ◽  
Restorative Material ◽  
Single Bond ◽  
Relyx Unicem ◽  
Luting Cement ◽  
Restorative Materials ◽  
Cad Cam ◽  
Bonding Technique

Objective: The objective of this study was to evaluate the effect of immediate dentin sealing, bonding technique, and restorative material on the dentin bond strength of an indirect composite (Solidex) and a resin nanoceramic CAD/CAM block (LAVA Ultimate). Material and Methods: A total of 120 periodontally extracted human molar teeth were abraded horizontally and divided into two groups according to dentin sealing procedures (delayed dentin sealing [DDS] and immediate dentin sealing [IDS]). Next, all teeth were attached to a simulated pulpal pressure mechanism. The specimens were removed from the mechanism after a week. Teeth were subdivided into three groups based on the bonding technique and the type of cement used (Acid-etching + Single Bond Universal + RelyX Ultimate, Single Bond Universal + RelyX Ultimate, RelyX Unicem).  Each subgroup was further divided into 2 subgroups according to the type of restorative material used (Solidex [n=10], Lava Ultimate CAD/CAM restorative material [n=10]).. Sixty cylindrical samples prepared using both the restorative materials were bonded to the tooth surface according to their group’s bonding procedures. All specimens were embedded in chemically cured acrylic resin for shear bond strength test. The shear bond strength (SBS) of the specimens was determined by a universal testing machine with a headspeed of 0.5 mm/min. Results: Three-way ANOVA, independent-sample t test and post hoc Tukey comparison tests (α=0.05) were performed on all data. There were significant differences between the groups. It was found that IDS process significantly increased bond strength in all groups. When dentin bond strengths of tested luting cements were compared, the highest bond strength values were recorded in groups in which the specimens were luted with RelyX Ultimate cement using etch-and-rinse technique. The lowest bond strength values were obtained from groups that used RelyX Unicem as the luting cement. Conclusions: IDS improves bond strength of indirect restorations. Moreover, bonding techniques may have critical effects on the dentin bond strength of indirect restorative materials. The cements’ specific affinity levels to both restorative materials and dentin could be considered as the reason of the situation.KEYWORDSIDS; Luting cement; Shear bond strength; Resin nanoceramic; CAD/CAM.

scholarly journals The evaluation of the shear bond strength between various Hybrid CAD/CAM restorative materials and repairing composite resins

2018 ◽  
Vol 45 (1) ◽  
pp. 45-56 ◽  
Author(s):  
Chang-Seop Jeong ◽  
Ji-Myung Bae ◽  
Jeong-Mi Kim ◽  
Young-Bum Park ◽  
Seunghan Oh
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Composite Resins ◽  
Restorative Materials ◽  
Cad Cam

Binding Performance of a Zirconia Framework Material and Veneering Porcelain

2010 ◽  
Vol 177 ◽  
pp. 186-189 ◽  
Author(s):  
Long Quan Shao ◽  
Bin Deng ◽  
Yuan Fu Yi ◽  
Qi Liu ◽  
Wei Wei Zhang ◽  
...  
Keyword(s):  
Bond Strength ◽  
Thermal Shock ◽  
Shear Bond Strength ◽  
Chemical Element ◽  
Radial Crack ◽  
Visual Observation ◽  
Thermal Shock Test ◽  
Cross Sectional ◽  
Shock Test ◽  
Cad Cam

In this study, the binding performance of a Cercon-based zirconia framework material and special Cercon Ceram S zirconia veneering porcelain is discussed. Rectangular 30 mm × 20 mm × 2 mm porcelain blocks were made from zirconia using the CAD/CAM system. The 2 mm veneering porcelain was then sintered onto blocks at a temperature of 850-800°C with a loading speed of l mm/min. The shear bond strength of the interface was tested. Sintering was studied by visual observation, scanning electron microscopy, energy dispersive spectroscopy (EDS), thermal shock test and other methods. Excellent sintering results of the zirconia framework material and veneering porcelain can be achieved. The cross-sectional morphology of the samples, observed by SEM, shows a uniform, fine, and smooth texture for the veneering porcelain, whereas that of the zirconia framework material shows a rough surface with a uniform and compact texture. EDS results indicate that a small amount of A12O3 and SiO2 is present in the zirconia area, and no ZrO2 or Y2O3 is detected in the veneering porcelain area. No interlayer radial crack or flaw is found throughout the entire thermal shock test of the samples at 60-240°C. Thus, the cracking temperature of the samples is pegged at T>240°C. The shear bond strength of the interface is 32.62±5.77 MPa. Chemical element infiltration exists between zirconia and the veneering porcelain, indicating the chemical bond between the two. An excellent match between the Cercon-based zirconia framework and the special veneering porcelain can be achieved, which can satisfy clinical requirements.

scholarly journals Influence of roughening procedures and priming agents on shear bond strength of CAD/CAM materials to zirconia frameworks

2021 ◽  
Author(s):  
Futoshi KOMINE ◽  
Fumiaki KIMURA ◽  
Kei KUBOCHI ◽  
Ryoki TAKANO ◽  
Daishi NAKASE ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Cad Cam
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