scholarly journals Repair Bond Strength of Composite Resin to Aged Resin and Glass-Matrix CAD/CAM Ceramic Materials Using Two Different Repair Systems

Coatings ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1331
Author(s):  
Sarah Alnafaiy ◽  
Nawaf Labban ◽  
Ahmed Maawadh ◽  
Huda Alshehri ◽  
Refal Albaijan
Keyword(s):  
Bond Strength ◽  
Glass Matrix ◽  
Failure Modes ◽  
Composite Resin ◽  
Ceramic Materials ◽  
Resin Matrix ◽  
Repair System ◽  
Factorial Anova ◽  
Cad Cam ◽  
Repair Systems

This study evaluates the repair bond strength of resin-matrix and glass-matrix CAD/CAM ceramic materials based on two repair systems. Thirty specimens measuring 2.5 mm in thickness were prepared from Crystal Ultra (CU), Vita Enamic (EN), Lava Ultimate (LU), Cerasmart (CS), and Vitablocs Mark II (VM2) materials and aged for 5000 thermal cycles. Specimens were randomly allocated into three groups: control, Monobond-S (MS) primer, and Monobond Etch & Prime (MEP). Composite resin (Tetric N Ceram) (5 mm in diameter and 2 mm thick) was packed and light-cured onto treated specimen surfaces. Subsequently, the specimens’ shear bond strength (SBS) was evaluated, and failure modes was recorded. Statistical analysis was performed using factorial ANOVA and Tukey’s post hoc tests (a = 0.05). The factorial ANOVA revealed significant interactions between the material type and repair system, which was significant (p < 0.01). The highest and lowest SBS were obtained for CU (27.09 ± 1.11) and VM2 (4.30 ± 0.59) in MS and control groups, respectively. In all the groups, CU demonstrated higher SBS, whereas VM2 demonstrated lower SBS. There were no significant differences in SBS between EN and LU, and CS and CU in all the study groups (p > 0.05). The Monobond-S repair system provided non-significantly higher SBS compared to the MEP systems, except for VM2 and LU materials. The new resin-matrix CAD/CAM material demonstrated the highest SBS compared to the other materials for both conventional and MEP repair systems. Both repair systems showed clinically acceptable bond strength and allowed for successful repair of the resin-matrix ceramic materials.

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.

Examining the effects of acid etching duration on the bond strength between two CAD/CAM materials and one composite resin

Odontology ◽  
2021 ◽  
Author(s):  
Patrícia Fernandes Jerzewski Sotero da Cunha ◽  
Julieta Gomes Tavares ◽  
Ana Maria Spohr ◽  
Mariá Cortina Bellan ◽  
Caroline Hoffmann Bueno ◽  
...  
Keyword(s):  
Bond Strength ◽  
Composite Resin ◽  
Acid Etching ◽  
Cad Cam ◽  
Etching Duration

scholarly journals Effects of different etching methods and bonding procedures on shear bond strength of orthodontic metal brackets applied to different CAD/CAM ceramic materials

2017 ◽  
Vol 88 (2) ◽  
pp. 221-226 ◽  
Author(s):  
S. Kutalmış Buyuk ◽  
Ahmet Serkan Kucukekenci
Keyword(s):  
Bond Strength ◽  
Hydrofluoric Acid ◽  
Shear Bond Strength ◽  
Ceramic Materials ◽  
Ceramic Surface ◽  
Bonding Agents ◽  
Ceramic Surfaces ◽  
Different Types ◽  
Cad Cam ◽  
Hybrid Ceramic

ABSTRACT Objective: To investigate the shear bond strength (SBS) of orthodontic metal brackets applied to different types of ceramic surfaces treated with different etching procedures and bonding agents. Materials and Methods: Monolithic CAD/CAM ceramic specimens (N = 120; n = 40 each group) of feldspathic ceramic Vita Mark II, resin nanoceramic Lava Ultimate, and hybrid ceramic Vita Enamic were fabricated (14 × 12 × 3 mm). Ceramic specimens were separated into four subgroups (n = 10) according to type of surface treatment and bonding onto the ceramic surface. Within each group, four subgroups were prepared by phosphoric acid, hydrofluoric acid, Transbond XT primer, and Clearfill Ceramic primer. Mandibular central incisor metal brackets were bonded with light-cure composite. The SBS data were analyzed using three-way analysis of variance (ANOVA) and Tukey HSD tests. Results: The highest SBS was found in the Vita Enamic group, which is a hybrid ceramic, etched with hydrofluoric acid and applied Transbond XT Adhesive primer (7.28 ± 2.49 MPa). The lowest SBS was found in the Lava Ultimate group, which is a resin nano-ceramic etched with hydrofluoric acid and applied Clearfill ceramic primer (2.20 ± 1.21 MPa). Conclusions: CAD/CAM material types and bonding procedures affected bond strength (P &lt; .05), but the etching procedure did not (P &gt; .05). The use of Transbond XT as a primer bonding agent resulted in higher SBS.

scholarly journals Bond strength of CAD/CAM-manufactured composite resin and ceramic veneers to a zirconia framework

2019 ◽  
Vol 61 (2) ◽  
pp. 327-334
Author(s):  
Fumiaki Kimura ◽  
Futoshi Komine ◽  
Kei Kubochi ◽  
Shogo Yagawa
Keyword(s):  
Bond Strength ◽  
Composite Resin ◽  
Cad Cam

scholarly journals The Effects of Cavity Preparation and Composite Resin on Bond Strength and Stress Distribution Using the Microtensile Bond Test

2018 ◽  
Vol 43 (1) ◽  
pp. 81-89 ◽  
Author(s):  
SSL Braga ◽  
LRS Oliveira ◽  
RB Rodrigues ◽  
AA Bicalho ◽  
VR Novais ◽  
...  
Keyword(s):  
Stress Distribution ◽  
Bond Strength ◽  
Failure Modes ◽  
Composite Resin ◽  
Shrinkage Stress ◽  
Cavity Preparation ◽  
Chi Square ◽  
Chi Square Test ◽  
Post Hoc ◽  
Made In

SUMMARY Objectives: To evaluate the effect of flowable bulk-fill or conventional composite resin on bond strength and stress distribution in flat or mesio-occlusal-distal (MOD) cavity preparations using the microtensile bond strength (μTBS) test. Methods: Forty human molars were divided into two groups and received either standardized MOD or flat cavity preparations. Restorations were made using the conventional composite resin Z350 (Filtek Z350XT, 3M-ESPE, St Paul, MN, USA) or flowable bulk-fill (FBF) composite resin (Filtek Bulk Fill Flowable, 3M-ESPE). Postgel shrinkage was measured using the strain gauge technique (n=10). The Z350 buildup was made in two increments of 2.0 mm, and the FBF was made in a single increment of 4.0 mm. Six rectangular sticks were obtained for each tooth, and each section was used for μTBS testing at 1.0 mm/min. Polymerization shrinkage was modeled using postgel shrinkage data. The μTBS data were analyzed statistically using a two-way analysis of variance (ANOVA), and the postgel shrinkage data were analyzed using a one-way ANOVA with Tukey post hoc test. The failure modes were analyzed using a chi-square test (α=0.05). Results: Our results show that both the type of cavity preparation and the composite resin used affect the bond strength and stress distribution. The Z350 composite resin had a higher postgel shrinkage than the FBF composite resin. The μTBS of the MOD preparation was influenced by the type of composite resin used. Irrespective of composite resin, flat cavity preparations resulted in higher μTBS than MOD preparations (p&lt;0.001). Specifically, in flat-prepared cavities, FBF composite resin had a similar μTBS relative to Z350 composite resin. However, in MOD-prepared cavities, those with FBF composite resin had higher μTBS values than those with Z350 composite resin. Adhesive failure was prevalent for all tested groups. The MOD preparation resulted in higher shrinkage stress than the flat preparation, irrespective of composite resin. For MOD-prepared cavities, FBF composite resin resulted in lower stress than Z350 composite resin. However, no differences were found for flat-prepared cavities. Conclusions: FBF composite resin had lower shrinkage stress than Z350 conventional composite resin. The μTBS of the MOD preparation was influenced by the composite resin type. Flat cavity preparations had no influence on stress and μTBS. However, for MOD preparation, composite resin with higher shrinkage stress resulted in lower μTBS values.

Shear Bond Strength of Different Repair Systems to Titanium After Water Aging

2012 ◽  
Vol 37 (3) ◽  
pp. 253-262 ◽  
Author(s):  
IG Haneda ◽  
RG Fonseca ◽  
FO Abi-Rached ◽  
GL Adabo ◽  
CAS Cruz
Keyword(s):  
Bond Strength ◽  
Failure Mode ◽  
Shear Bond Strength ◽  
Storage Time ◽  
Pure Titanium ◽  
Control Group ◽  
Repair System ◽  
Repair Systems ◽  
Cp Ti ◽  
Storage Times

SUMMARY This study evaluated the shear bond strength (SBS) and stability of commercially pure titanium (CP Ti)/repair material interfaces promoted by different repair systems. One hundred CP Ti cast discs were divided into five repair system groups: 1) Epricord (EP); 2) Bistite II DC (BT); 3) Cojet (CJ); 4) Scotchbond Multi-Purpose Plus (SB) (control group); and 5) Cojet Sand plus Scotchbond Multi-Purpose Plus (CJSB). The specimens were stored in distilled water for 24 hours at 37°C, thermal cycled (5000 cycles, 5°-55°C) and stored under the same conditions for either 24 hours or six months (n=10). SBS was tested and the data were analyzed by two-way analysis of variance (ANOVA) and Tukey test (α=.05). Failure mode was determined with a stereomicroscope (20×). The repair system, storage time, and their interaction significantly affected the SBS (p&lt;0.001). At 24 hours, CJSB exhibited the highest SBS value, followed by CJ. At six months, these two groups had similar mean SBS (p&gt;0.05) and higher means in comparison to the other groups. For both storage times, BT presented the lowest SBS, while the EP and SB groups did not differ significantly from one another (p&gt;0.05). There were no significant differences in SBS between the storage times for the groups EP and CJ (p&gt;0.05). The groups BT, SB, and CJSB showed 100% adhesive failure, irrespective of storage time. The CJSB group showed the highest SBS at both storage times. At six months, the CJ group exhibited a similar SBS mean value when compared to the CJSB group. Water storage adversely affected the groups BT, SB (control group), and CJSB. Considering SBS values, stability, and the failure mode simultaneously, the CJ group showed the best CP Ti repair performance.

scholarly journals Effect of various intraoral repair systems on the shear bond strength of composite resin to zirconia

2013 ◽  
Vol 5 (3) ◽  
pp. 248 ◽  
Author(s):  
In-Hae Han ◽  
Dong-Wan Kang ◽  
Chae-Heon Chung ◽  
Han-Cheol Choe ◽  
Mee-Kyoung Son
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Composite Resin ◽  
Repair Systems
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