Ceramometal Bond Strength Analysis using New and Recast Nonprecious Alloys with Three Different Ceramics

ABSTRACT Objectives This study is undertaken to evaluate the dependence of bond strength of 100% fresh nonprecious alloy and the combination of 50% recast (used) alloy and 50% fresh alloy with three different veneering ceramic material. Materials and methods To evaluate the shear bond strength between new and recast alloy nonprecious Ni-Cr alloy (System KN®, Adentatec, Germany) was used with three different commercially available ceramics. A total of 60 samples were prepared and divided in two groups depending on the new or recast alloy. The 30 specimens of new alloy (group A) and 30 specimens of recast alloy (group B) were fabricated. Each group was again divided into three subgroups of 10 specimens for ceramic veneering Vita VMK-95 [V], IPS Classic [I] and Noritake [N] as veneering ceramic materials. Thus, six subgroups were formed as groups AV, AI, AN, BV, BI and BN. Groups AV and BV were veneered with Vita Ceramics, Groups AI and BI were veneered with IPS Classic (Ivoclar) and Groups AN and BN were veneered with Noritake. Then, shear bond strength between new and recast alloy was analyzed for each type of ceramics using MTS machine. Results The bond strength between new [group A] and recast alloy [group B] using three different veneering ceramics were evaluated. It was found that the new or the fresh alloy had highest shear bond strength than the recast alloy. Statistically, it was found that there was significant difference in bond strength between the new and recast alloys, when same type of ceramics was compared. When comparing ceramics, the Noritake group had highest bond strength, while other groups, that is, Vita and Ivoclar had comparatively low bond strength. Conclusion From this study, conclusion can be drawn that the use of 50% recast alloy shows reduction in bond strength values. Therefore, the use of recast alloy should not exceed more than 50%, as it would compromise the properties of alloy and the efficacy of bond strength between ceramic and alloy. How to cite this article Gosavi S, Wadkar A, Gosavi SY. Ceramometal Bond Strength Analysis using New and Recast Nonprecious Alloys with Three Different Ceramics. Int J Prosthodont Restor Dent 2013;3(1):14-20.

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The difference between porcelain and composite resin shear bond strength in the administration of 4% and 19.81% silane

Dental Journal (Majalah Kedokteran Gigi) ◽

10.20473/j.djmkg.v52.i1.p27-31 ◽

2019 ◽

Vol 52 (1) ◽

pp. 27

Author(s):

Ira Widjiastuti ◽

Dwina Rahmawati Junaedi ◽

Ruslan Effendy

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

Composite Resin ◽

Resin Composite ◽

Repair Process ◽

Direct Repair ◽

Significant Difference ◽

Group A ◽

The Difference ◽

Group B

Background: Damage to porcelain restorations such as fractures requires a repair that can be performed either directly or indirectly. Direct repair involves directly performing restoration of fractured porcelain with a composite resin application. This technique has more advantages than indirect repair because it requires no laboratory work and can be completed during a single visit. Silane, on the other hand, has been widely used and is reported to increase porcelain and composite resin attachments during the direct repair process. Purpose: This study aimed to determine the differences in shear bond strength between porcelain and composite resin during the administering of 4% and 19.81% silane. Methods: 27 porcelain samples were divided into three groups, namely: Group A - 4% silane, Group B - 19.81% silane and Group C - no silane, prior to the application of composite resin. Each sample was tested for shear bond strength by means of Autograph and fracture analysis performed through stereomicroscope and scanning electron microscope tests. Data analysis was subsequently performed using an ANOVA test. Results: There was a significant difference between the three groups with p=0.000 (p<0.005). The lowest bond strength was found in the group without silane, while the highest was in the group with 4% silane (p<0.005). Conclusion: The use of 4% silane can produce the highest shear bond strength of porcelain and resin composite.

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Evaluation of crosshead speed influence on shear bond strength test

Brazilian Dental Science ◽

10.14295/bds.2014.v17i3.1003 ◽

2014 ◽

Vol 17 (3) ◽

pp. 50

Author(s):

Celina Wanderley de Abreu ◽

Gilberto Duarte Filho ◽

Alberto Noriyuki Kojima ◽

Renato Morales Jóias ◽

Alfredo Mikail Melo Mesquita

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

Testing Machine ◽

Font Size ◽

Universal Testing ◽

Significant Difference ◽

Group A ◽

The Mean ◽

Group B ◽

Group D

The objective of this study was to evaluate the influence of different speeds using the piston device in the shear bond strength. 48 cylinders of composed resin had been confectioned (Solidex),and were divided randomly in four groups (n=12). The specimens were adapted to the device for the shear bond strenth test and were taken to an universal testing machine with a load cell of 1000Kg. The test were carried through with four different speeds: group A: 0,5; group B: 1,0; group C: 1,5 and group D: 2,0mm/min. The mean and standard deviations, in Kgf, were: A - 66,31(10,24); B - 64,53 (20,40); C - 75,23 (11,84) and D - 66,62 (13,81). The data were submitted to ANOVA (p=0,13). The results indicated that it did not have statistical significant difference between the groups A, B, C and D concluding that the speed in this type of test, with this device, can be varied without modify results.

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SHEAR BOND STRENGTH OF RESTORATIVE PARTICULATE RESIN COMPOSITE WITH A SHORT FIBER-REINFORCED RESIN COMPOSITE SUBSTRUCTURE

International Journal of Applied Pharmaceutics ◽

10.22159/ijap.2017.v9s2.42 ◽

2018 ◽

Vol 9 ◽

pp. 155

Author(s):

Ellyza Herda ◽

Nabila . ◽

Bambang Irawan

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

Resin Composite ◽

Testing Machine ◽

Short Fiber ◽

Resin Composites ◽

Fiber Reinforced ◽

Significant Difference ◽

Group A ◽

Group B

Objective: This study aimed to identify the shear bond strength of two different restorative particulate resin composites with a short fiber-reinforced resin composite (SFRC) substructure.Methods: Two restorative particulate resin composites, G-aenial PosteriorTM (Group A, 10 specimens) and Tetric N-Ceramtm (Group B, 10 specimens), were used as an upper layer of everX posteriorTM, an SFRC. A shear bond strength test was performed using a universal testing machine with a load of 100 kgf and a crosshead speed of 0.5 mm/min. The data were analyzed statistically using the independent samples t-test.Results: The mean shear bond strength values were found to be18.64±1.5 MPa (Group A) and 22.05±1.8 MPa (Group B). A significant difference in shear bond strength between the two groups was found.Conclusion: The shear bond strength value is higher in the Tetric N-CeramTM restorative particulate resin composite with SFRC as a substructure than the G-aenial PosteriorTM restorative particulate resin composite.

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Influence of irrigating agents on fiber postpush-out bond strength to radicular dentin sections with the different adhesive system

European Journal of Dentistry ◽

10.4103/ejd.ejd_280_16 ◽

2017 ◽

Vol 11 (03) ◽

pp. 380-384 ◽

Cited By ~ 1

Author(s):

Satheesh B. Haralur ◽

Asim Nasser A. Alasabi ◽

Sultan A. Abohathrah Al Qahtani ◽

Saeed Musleh S. Alqahtani

Keyword(s):

Bond Strength ◽

Ethylenediaminetetraacetic Acid ◽

Adhesive System ◽

Negative Influence ◽

Significant Difference ◽

Group A ◽

Coronal Section ◽

Group B ◽

Self Etch ◽

Push Out

ABSTRACT Objective: The objective of this study is to evaluate the effect of irrigating agents on push-out bond strength of resin postcemented with various adhesive systems at different radicular dentin sections. Materials and Methods:Sixty single-rooted premolar teeth were root canal treated, subsequently decorated at cementoenamel junction. The endodontic postspace was irrigated with 5.25% sodium hypochlorite (NaOCl) and 17% ethylenediaminetetraacetic acid (EDTA) for Group A (n = 30) and Group B (n = 30), respectively. The sample from each group was subdivided into three groups (10) according to luting protocol of etch-wash, self-etch, and self-adhesive. Individual teeth with cemented resin postsamples were sectioned into coronal, middle, and apical segments. Subsequently, subjected for pushout bond strength test by applying a load at 0.5 mm/min speed. The data were analyzed by three-way analysis of variance and Tukey comparison test at a significant difference level of 0.05.Results: The coronal section with 5.25% NaOCl irrigation and self-etch luting protocol provided the highest push out strength at 16.282 Mpa. The etch-wash luting protocol in both irrigations showed the lesser bond strength at 8.273 and 8.493 MPa, respectively, in coronal section.Conclusions: The self-etch adhesive system showed better push out bond strength and 17% EDTA had a negative influence on self-etch bond strength. The coronal sections had highest bond strength in comparison with apical radicular dentin sections.

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Enamel shear bond strength of different primers combined with an orthodontic adhesive paste

Biomedical Engineering / Biomedizinische Technik ◽

10.1515/bmt-2016-0241 ◽

2017 ◽

Vol 62 (4) ◽

pp. 415-420 ◽

Cited By ~ 3

Author(s):

Julia H. Seeliger ◽

Ute U. Botzenhart ◽

Tomasz Gedrange ◽

Karol Kozak ◽

Lukas Stepien ◽

...

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

Tooth Enamel ◽

Surface Preparation ◽

Clinical Situation ◽

Adhesive Remnant Index ◽

Group A ◽

Student’S T ◽

Group B ◽

Group D

AbstractAim:The aim of this study was a comparison of shear bond strength (SBS) on tooth enamel of different primers combined with the adhesive paste Transbond XT.Materials and methods:Forty bovine teeth were used in order to create 40 test blocks. The blocks were divided into four groups of 10 blocks each: group A – sample primer (SP); group B – Opal Seal (OS); group C – Transbond Plus SEP (TSEP); group D – Transbond XT Primer (TXT). After surface preparation and application of the primer, respectively, two stainless steel brackets were fixed on each tooth by using Transbond XT. Accordingly, 80 brackets were debonded (n=20). Shear bond strength and adhesive remnant index (ARI) scores were evaluated. Statistical analyses were performed by using the Student’s t-test and Mann-Whitney U test.Results:All tested groups revealed high shear bond strength in a similar size range. There were no significant differences between the groups concerning shear bond strength. The ARI scores of group C showed significantly lower ARI scores (0 and 1) than that of group D. Apart from that there was no statistical difference.Conclusion:In combination with the adhesive paste Transbond XT, all tested primers were suitable for fixing orthodontic brackets. The primers could be changed according to the clinical situation.

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Evaluation of the Effect of Different Types of Abrasive Surface Treatment before and after Zirconia Sintering on Its Structural Composition and Bond Strength with Resin Cement

BioMed Research International ◽

10.1155/2018/1803425 ◽

2018 ◽

Vol 2018 ◽

pp. 1-12 ◽

Cited By ~ 1

Author(s):

Hasan Skienhe ◽

Roland Habchi ◽

Hani Ounsi ◽

Marco Ferrari ◽

Ziad Salameh

Keyword(s):

Phase Transformation ◽

Bond Strength ◽

Surface Treatment ◽

Shear Bond Strength ◽

Monoclinic Phase ◽

Resin Cement ◽

Silica Powder ◽

Before And After ◽

Group A ◽

Group B

This study evaluated the effect of air abrasion before and after sintering with different particle type, shape, and size on the surface morphology, monoclinic phase transformation, and bond strength between resin cement and zirconia surface using primer containing silane and MDP. Airborne particle abrasion (APA) was performed on zirconia before and after sintering with different particle shape and size (50 μm Al2O3 and 25 μm silica powder). 120 square shaped presintered zirconia samples (Amann Girrbach) were prepared (3 mm height × 10 mm width × 10 mm length) and polished with grit papers #800, 1000, 1200, 1500, and 2000. Samples were divided into 6 groups according to surface treatment—group A: (control) no surface treatment; group B: APA 50 μm Al2O3 before sintering (BS); group C: APA 50 μm Al2O3 after sintering (AS); group D: APA25 μm silica powder (BS); group E: APA25 μm silica powder (AS) at a pressure of 3.5 bar; and group F: APA 25 μm silica powder (AS) at a pressure of 4 bar. Samples were analyzed using XRD, AFM, and SEM. The samples were submitted to shear bond strength (SBS) test. A dual cure resin cement (RelyX Ultimate) and primer (Scotchbond Universal) were used. Data were analyzed with ANOVA and Tukey test (α≥0.05). APA in group B significantly increased the surface roughness when compared to all other groups. A significant monoclinic phase transformation (t-m) value was observed in groups C and F and a reverse transformation occurred in presintered groups. The SBS value of group A was 11.58±1.43 and the highest significant shear bond strength value was for groups B (15.86±1.92) and C (17.59±2.21 MPa) with no significant difference between them. Conclusions. The use of APA 50 μm Al2O3 before sintering and the application of primer containing MDP seem to be valuable methods for durable bonding with zirconia. The use of APA 50 μm Al2O3 after sintering induced the highest (t-m) phase transformation.

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Shear Bond Strength of Porcelain Veneers Rebonded to Enamel

Operative Dentistry ◽

10.2341/14-123-l ◽

2015 ◽

Vol 40 (3) ◽

pp. E112-E121 ◽

Cited By ~ 2

Author(s):

HA St Germain ◽

TH St Germain

Keyword(s):

Phosphoric Acid ◽

Bond Strength ◽

Aluminum Oxide ◽

Shear Bond Strength ◽

Resin Cement ◽

Enamel Surface ◽

Control Group ◽

Significant Difference ◽

Mode Of Failure ◽

Group A

SUMMARY In this laboratory research, shear bond strength (SBS) and mode of failure of veneers rebonded to enamel in shear compression were determined. Three groups (A, B, and C; n=10 each) of mounted molar teeth were finished flat using wet 600-grit silicon carbide paper, and 30 leucite-reinforced porcelain veneers (5.0 × 0.75 mm) were air abraded on the internal surface with 50 μm aluminum oxide, etched with 9.5% hydrofluoric acid, and silanated. The control group (A) veneer specimens were bonded to enamel after etching with 37% phosphoric acid using bonding resin and a dual cure resin composite cement. Groups B and C were prepared similarly to group A with the exception that a release agent was placed before the veneer was positioned on the prepared enamel surface and the resin cement was subsequently light activated. The debonded veneers from groups B and C were placed in a casting burnout oven and heated to 454°C/850°F for 10 minutes to completely carbonize the resin cement and stay below the glass transition temperature (Tg) of the leucite-reinforced porcelain. The recovered veneers were then prepared for bonding. The previously bonded enamel surfaces in group B were air abraded using 50 μm aluminum oxide followed by 37% phosphoric acid etching, while group C enamel specimens were acid etched only. All specimens were thermocycled between 5°C and 55°C for 2000 cycles using a 30-second dwell time and stored in 37°C deionized water for 2 weeks. SBS was determined at a crosshead speed of 1.0 mm/min. SBS results in MPa for the groups were (A) = 20.6±5.1, (B) = 18.1±5.5, and (C) = 17.2±6.1. One-way analysis of variance indicated that there were no significant interactions (α=0.05), and Tukey-Kramer post hoc comparisons (α=0.05) detected no significant pairwise differences. An adhesive mode of failure at the enamel interface was observed to occur more often in the experimental groups (B = 40%, C = 50%). Rebonding the veneers produced SBS values that were not significantly different from the control group. Also, no significant difference in SBS values were observed whether the debonded enamel surface was air abraded and acid etched or acid etched only.

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Surface Conditioning Methods and Polishing Techniques Effect on Surface Roughness of a Feldspar Ceramic

The Angle Orthodontist ◽

10.2319/062206-256.1 ◽

2007 ◽

Vol 77 (4) ◽

pp. 723-728 ◽

Cited By ~ 17

Author(s):

YŞinasi Saraç ◽

Selma Elekdag-Turk ◽

Duygu Saraç ◽

Tamer Turk

Keyword(s):

Surface Roughness ◽

Bond Strength ◽

Hydrofluoric Acid ◽

Shear Bond Strength ◽

The Other ◽

Surface Conditioning ◽

Diamond Polishing ◽

Significant Difference ◽

Aluminum Trioxide ◽

Group A

Abstract Objective: To investigate the effects of three surface conditioning methods on shear bond strength (SBS) and on surface roughness (Ra) of a feldspathic ceramic, and to compare the efficiency of three polishing techniques. Materials and Methods: A total of 106 feldspathic specimens were used. Thirty specimens were divided into three groups according to the surface conditioning methods: air-particle abrasion (APA) with 25-μm aluminum trioxide (Al2O3) (group A); hydrofluoric acid (HFA) (group H); APA and HFA (group AH). Metal brackets were bonded and subjected to SBS testing. Sixty-three specimens were divided into three groups according to the surface conditioning method. Ra was evaluated profilometrically. Then, each group was divided into three subgroups according to the polishing technique, ie, adjustment kit, diamond polishing paste, adjustment kit + diamond polishing paste. Following polishing, the second Ra values were obtained. Results: The lowest SBS was obtained for group H. This value was significantly different from the values of groups A and AH (P < .05). The lowest Ra value was observed for group H (P < .001). There was no significant difference between groups A and AH (P > .05). No significant differences between the subgroups in which a polishing paste was used were observed (P > .05). There was no significant difference between the adjustment kit and the adjustment kit + a diamond polishing paste (P > .05). Conclusion: APA or APA + HFA created rougher porcelain surfaces than HFA alone. Both adjustment kit use and the adjustment kit + polishing paste application were effective to smooth the porcelain, but one was not found superior to the other.

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Comparative evaluation of bond strength of three self-adhering flowable composites to sound and demineralized enamel – An in vitro study

Journal of Global Oral Health ◽

10.25259/jgoh_60_2020 ◽

2021 ◽

Vol 4 ◽

pp. 3-7

Author(s):

Shrikanth Benjwal ◽

Mousumi Goswami ◽

Aditya Saxena ◽

Reenu Sarah Kurien ◽

Anam Mushtaq

Keyword(s):

Bond Strength ◽

Primary Teeth ◽

Fracture Pattern ◽

Adhesive Fracture ◽

Demineralized Enamel ◽

Significant Difference ◽

Group A ◽

Mixed Fracture ◽

Group B ◽

Flowable Composites

Objectives: The purpose of this study was to determine bond strength of three self-adhering flowable composites. Materials and Methods: Mean tensile bond strength was measured in three groups – Group A – Constic, Group B – Dyad Flow, and Group C – Fusio Liquid Dentin on sound and demineralized primary teeth. Fracture pattern was studied using a stereomicroscope for each sample and in classified as adhesive, cohesive, or mixed fracture. Results: Mean tensile bond strength in sound enamel of Group A (Constic) was found to be 10.79 + 4.24, Group B (Dyad Flow) was 10.30 + 4.63, and of Group C (Fusio Liquid Dentine) was 11.87 + 4.45. No significant difference was found between the three groups (f = 0.327 and P = 0.724). However, a significant difference was found with demineralized enamel in three groups. Constic and Dyad Flow exhibited adhesive fracture pattern in majority of samples on sound enamel, whereas Fusio Liquid Dentin had mixed fracture pattern. On demineralized enamel, Constic exhibited adhesive fracture pattern majorly, whereas Dyad flow demonstrated mixed pattern and Fusio Liquid Dentin had more of cohesive fractures. Conclusion: Constic, Dyad Flow, and Fusio Liquid Dentin can be used instead of conventional pit and fissure sealants or in small occlusal cavities in primary teeth as a single step material.

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Evaluation of Surface Conditioning of Zirconia and Its Effect on Bonding to Resin-Luting Agent

Journal of Contemporary Dentistry ◽

10.5005/jp-journals-10031-1026 ◽

2013 ◽

Vol 3 (1) ◽

pp. 7-10

Author(s):

Sonu Gargava ◽

Sabita M Ram

Keyword(s):

Bond Strength ◽

Silicon Dioxide ◽

Shear Bond Strength ◽

Composite Resin ◽

Testing Machine ◽

Acrylic Resin ◽

Surface Conditioning ◽

Luting Agent ◽

Group A ◽

Group B

ABSTRACT Zirconia, a recently introduced ceramic exhibits excellent esthetic qualities and demonstrates outstanding flexural strength but its extensive use, requires a reliable bond of Zirconia with resinluting agent. Resin Zirconia bonding cannot be achieved as the material is resistant to common etching procedures used for other glass containing ceramics. With surface conditioning increased adhesion between Zirconia and resin-luting agent can be successfully achieved. Aim Aim of this study was to evaluate surface conditioning of Zirconia and its effect on bonding to resin-luting agent. Materials and Methods Fifteen blocks of Zirconia (VITA Zirconia) were fabricated in the laboratory according to manufacturer's instructions and embedded in acrylic resin to get 15 Zirconia samples. Fifteen composite resin cylinders were prepared one for each Zirconia sample. All the 15 Zirconia samples were divided into three groups of five samples each. Group A: Was kept as control with no surface conditioning done. Group B: Surface conditioning was done with 30 µ silicon dioxide. Group C: Surface conditioning was done with 110 µ aluminum oxide. Composite resin cylinders were cemented on the Zirconia samples using a resin-luting agent (Panavia F). The samples were subjected to universal testing machine to evaluate shear bond strength and the data was statistically analyzed by oneway ANOVA. Results Group A showed least shear bond strength. Shear bond strength of group C was greater than group A while group B showed highest shear bond strength. Conclusion Surface conditioning results in significant increase bond strength between Zirconia and resin-luting agent. Among the two methods surface conditioning with 30 µ silicon dioxide is much better and efficient method. How to cite this article Gargava S, Ram SM. Evaluation of Surface Conditioning of Zirconia and Its Effect on Bonding to Resin-Luting Agent. J Contemp Dent 2013;3(1):7-10.

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