Effect of beverages on surface properties of resin-based sealants

Self-adhesive, dual-polymerizing resin cements require no treatment to the prepared tooth surfaces before cementation. Aim: The aim of this study was to evaluate the influence of curing mode on bond strength (BS) of three cementing systems to bovine dentin. Methods: The buccal enamel surfaces of 50 bovine incisors were removed to expose dentin and to flat the surface. The teeth were divided into five groups (n=10), which consisted of two resin cements (Multilink and Clearfil SA Cement) that were tested in dual- (halogen light for 40 s) and self-cured modes, and a control (RelyX ARC). Two cylinders of resin cements (1.0 mm X 0.75 mm) were prepared on each bonded dentin surface. After 24h at 37oC, resin cylinders were subjected to micro-shear testing in a universal testing machine (4411/Instron - 0.5 mm/min). Data were statistically analyzed by two-way ANOVA, Tukey and Dunnett`s test (5%). Results: Multilink showed higher BS than those observed on Clearfil SA. Light-curing resulted in higher BS for both Multilink and Clearfil SA. When Multilink was light-cured, no significant difference on BS was demonstrated between it and RelyX ARC. Conclusions: The highest BS values were obtained in control group and light-cured Multilink resin cement.

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Influence of curing mode of resin luting cements on bond strength to dentin

Brazilian Journal of Oral Sciences ◽

10.20396/bjos.v15i4.8650036 ◽

2017 ◽

Vol 15 (4) ◽

pp. 258

Author(s):

Marcelo Giannini ◽

Andreia Assis Carvalho ◽

Ariovaldo Stefani ◽

Wladimir Franco de Sá Barbosa ◽

Lawrence Gonzaga Lopes

Keyword(s):

Bond Strength ◽

Testing Machine ◽

Resin Cement ◽

Control Group ◽

Resin Cements ◽

Luting Cements ◽

Halogen Light ◽

Significant Difference ◽

Tooth Surfaces ◽

Light Curing

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Bond Strength of Overdenture Locator Posts Cemented with Seven Luting Agents

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-1384 ◽

2013 ◽

Vol 14 (4) ◽

pp. 675-680

Author(s):

Khalil Aleisa

Keyword(s):

Bond Strength ◽

Testing Machine ◽

Mean Value ◽

Resin Cement ◽

Control Group ◽

Resin Cements ◽

Human Teeth ◽

Luting Agents ◽

Relyx Unicem ◽

Significant Difference

ABSTRACT Statement of the problem Post retention is crucial factor in restoration survival. Posts are commonly failed due to loss of retention. It is unknown which luting agents would provide the maximum bond strength for Locator overdenture posts. Aim The aim of this study was to evaluate the bond retentive strengths of Locator overdenture posts cemented with 7 luting agents. Materials and methods One hundred and five single rooted human teeth were decoronated and randomly assigned to 7 groups (n = 15). Post spaces were prepared with Locator post drills to the depth of 6 mm. The Locator posts were cemented with Variolink II, RelyX ARC, Multilink N, RelyX Unicem, ParaCore, or MultiCore Flow resin luting agents. Zinc phosphate cement was served as control group. Specimens were stored in water at 37°C for 24 hours. Each specimen was loaded in tension in an Instron universal testing machine. The maximum force required to dislodge each Locator post was recorded. Means and standard deviations were calculated and data were statistically analyzed with one-way analysis of variance (ANOVA). Results The highest mean bond strength value for Locator posts was recorded for MultiCore® Flow group (mean = 550.1 N), while the lowest mean value was for RelyX Unicem™ resin cement group (mean = 216.8 N). A statistically significant difference in mean locator overdenture post bond strength was observed between the 7 cement types (p < 0.0001). ParaCore™ and MultiCore® Flow groups had significantly higher bond strength than all other groups, but they were not differed from each other. Conclusion Bond strength of Locator overdenture posts were influenced by the type of luting agents. MultiCore Flow and ParaCore resin cements offered the greatest retention. Clinical significance The type of luting agents had a significant effect on the retention of Locator posts. The use of Core buildup resin cements as luting agent with Locator post demonstrated the greatest retention. How to cite this article Aleisa K. Bond Strength of Overdenture Locator Posts Cemented with Seven Luting Agents. J Contemp Dent Pract 2013;14(4):675-680.

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Effects of Fluorosis and Self Etching Primers on Shear Bond Strengths of Orthodontic Brackets

European Journal of Dentistry ◽

10.1055/s-0039-1697428 ◽

2009 ◽

Vol 03 (03) ◽

pp. 173-177 ◽

Cited By ~ 7

Author(s):

Ahmet Yalcin Gungor ◽

Hakan Turkkahraman ◽

Necdet Adanir ◽

Huseyin Alkis

Keyword(s):

Bond Strength ◽

Testing Machine ◽

Orthodontic Brackets ◽

Universal Testing ◽

Adhesive Remnant Index ◽

Halogen Light ◽

Significant Difference ◽

Bond Strengths ◽

Group Ii ◽

Clinical Changes

ABSTRACTObjectives: To evaluate the effects fluorosis and self etching primers (SEP) on shear bond strengths (SBS) of orthodontic brackets.Methods: A total of 48 (24 fluorosed and 24 non-fluorosed) non-carious freshly extracted human permanent premolar teeth were used in this study. Fluorosed teeth were selected according to the modified Thylstrup and Fejerskov index (TFI), which is based on the clinical changes in fluorosed teeth. Fluorosed and non-fluorosed teeth were randomly assigned to 4 groups of 12 each. In groups I (non-fluorosed teeth) and II (fluorosed teeth), standard etching protocol was used and brackets were bonded with Light Bond. In groups III (non-fluorosed teeth) and IV (fluorosed teeth), Transbond Plus SEP was used and brackets were bonded with Transbond XT Light Cure Adhesive. All specimens were cured with a halogen light. After bonding, SBS of the brackets were tested with Universal testing machine. After debonding, all teeth and brackets in the test groups were examined under 10x magnifications. Any adhesive remained after debonding was assessed and scored according to the modified Adhesive Remnant Index (ARI).Results: ANOVA indicated a significant difference between groups (P<.001). SBS in group II (Light Bond+Fluorosis) were significantly lower than other groups. ARI scores of the groups were also significantly different (P<.001). There was a greater frequency of ARI scores of 1,2 and 3 in group II (Light Bond+Fluorosis).Conclusions: When standard etching protocol was used enamel fluorosis significantly decreased the bond strength of orthodontic brackets. Satisfactory bond strengths were obtained when SEP was used for bonding brackets to the fluorosed teeth. (Eur J Dent 2009;3:173-177)

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Effect of Surface Treatments on the Bond Strength to Turkom-Cera All-ceramic Material

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-1954 ◽

2016 ◽

Vol 17 (11) ◽

pp. 920-925 ◽

Cited By ~ 1

Author(s):

Bandar MA Al-Makramani ◽

Fuad A Al-Sanabani ◽

Abdul AA Razak ◽

Mohamed I Abu-Hassan ◽

Ibrahim Z AL-Shami ◽

...

Keyword(s):

Bond Strength ◽

Ceramic Material ◽

Failure Modes ◽

Testing Machine ◽

Surface Treatments ◽

Resin Cement ◽

Control Group ◽

Significant Difference ◽

All Ceramic ◽

Effect Of Surface

ABSTRACT Aim The aim of this study was to evaluate the effect of surface treatments on shear bond strength (SBS) of Turkom-Cera (Turkom-Ceramic (M) Sdn. Bhd., Puchong, Malaysia) all-ceramic material cemented with resin cement Panavia-F (Kuraray Medical Inc., Okayama, Japan). Materials and methods Forty Turkom-Cera ceramic disks (10 mm × 3 mm) were prepared and randomly divided into four groups. The disks were wet ground to 1000-grit and subjected to four surface treatments: (1) No treatment (Control), (2) sandblasting, (3) silane application, and (4) sandblasting + silane. The four groups of 10 specimens each were bonded with Panavia-F resin cement according to manufacturer's recommendations. The SBS was determined using the universal testing machine (Instron) at 0.5 mm/min crosshead speed. Failure modes were recorded and a qualitative micromorphologic examination of different surface treatments was performed. The data were analyzed using the one-way analysis of variance (ANOVA) and Tukey honestly significant difference (HSD) tests. Results The SBS of the control, sandblasting, silane, and sandblasting + silane groups were: 10.8 ± 1.5, 16.4 ± 3.4, 16.2 ± 2.5, and 19.1 ± 2.4 MPa respectively. According to the Tukey HSD test, only the mean SBS of the control group was significantly different from the other three groups. There was no significant difference between sandblasting, silane, and sandblasting + silane groups. Conclusion In this study, the three surface treatments used improved the bond strength of resin cement to Turkom-Cera disks. Clinical significance The surface treatments used in this study appeared to be suitable methods for the cementation of glass infiltrated all-ceramic restorations. How to cite this article Razak AAA, Abu-Hassan MI, AL-Makramani BMA, AL-Sanabani FA, AL-Shami IZ, Almansour HM. Effect of Surface Treatments on the Bond Strength to Turkom-Cera All-Ceramic Material. J Contemp Dent Pract 2016;17(11):920-925.

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Effect of Dentin Preparation Mode on the Bond Strength Between Human Dentin and Different Resin Cements

Brazilian Dental Journal ◽

10.1590/0103-6440201801809 ◽

2018 ◽

Vol 29 (3) ◽

pp. 268-274 ◽

Cited By ~ 2

Author(s):

Lara Almeida Cyrillo Cerqueira ◽

Ana Rosa Costa ◽

Ana Maria Spohr ◽

Eduardo Miyashita ◽

Benito André Silveira Miranzi ◽

...

Keyword(s):

Bond Strength ◽

Resin Composite ◽

Testing Machine ◽

Resin Cement ◽

Hybrid Layer ◽

Resin Cements ◽

Diamond Bur ◽

Cross Section Area ◽

Significant Difference ◽

Preparation Mode

Abstract The aim was to evaluate the influence of different dentin preparation mode in the smear layer characteristics (SL), hybrid layer (HL), and microtensile bond strength (µTBS) to dentin with two resin cements. The occlusal dentin of 120 third molars was exposed. The teeth were divided into 4 groups (n=30) according to the dentin preparation mode: 1- fine grain diamond bur; 2- coarse grain diamond bur; 3- multi laminate carbide steel bur; and, 4- ultrasonic CV Dentus diamond bur. Each treated dentin group was divided into 2 sub-groups (n=15) according to the resin cement: (1) RelyX U200 and (2) RelyX ARC. Resin composite blocks were cemented on dentin. After storage at 37o C for 24 h, beams with a cross section area of 1.0 mm2 were obtained, and tested in a universal testing machine at a crosshead speed of 0.5 mm/min. Two additional teeth for each sub-group were prepared to analyze the SL and HL on a scanning electron microscopy. According to Kruskal-Wallis test and Dunn tests, there was no significant difference in µTBS among the rotary instruments within each resin cement group. RelyX ARC obtained higher µTBS values compared to RelyX U200 (p<0.05). RelyX ARC formed evident HL, which was not observed for RelyX U200. The dentin mode preparation did not influence the µTBS of the resin cements. The SL was different for all instruments. The cementing agent is more determinant in the hybrid layer formation and bond strength to dentin than the instruments applied on dentin.

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Polymerization Shrinkage of Bulk Fill Composites and its Correlation with Bond Strength

Brazilian Dental Journal ◽

10.1590/0103-6440201801838 ◽

2018 ◽

Vol 29 (3) ◽

pp. 261-267 ◽

Cited By ~ 1

Author(s):

Lauber Jose dos Santos Almeida Junior ◽

Estevam Carlos de Oliveira Lula ◽

Karla Janilee de Souza Penha ◽

Vinicius Souza Correia ◽

Fernando Augusto Cintra Magalhães ◽

...

Keyword(s):

Bond Strength ◽

Testing Machine ◽

Class I ◽

Third Molars ◽

Microtensile Bond Strength ◽

Polymerization Shrinkage ◽

Universal Testing ◽

Significant Difference ◽

Light Curing ◽

Factor C

Abstract The present study aimed to evaluates polymerization shrinkage (PS) using microcomputed tomography (μCT) and microtensile bond strength (μTBS) in bulk fill composites (BFC) and conventional class I restorations as well as the correlation between these factors. Class I cavities (4 x 5 x 4 mm), factor-C = 4.2, were created in third molars that were free of caries, which were randomly divided in 4 groups (n = 6): XTI (Filtek Supreme XTE: incremental technique); XTB (Filtek Supreme XTE: single fill technique); TBF (Tetric Bulk Fill); and SF (SonicFill). Each tooth was scanned twice in μCT: T0 was after filling the cavity with composite, and T1 was after light curing. The data were analyzed by subtracting the composite volume for each time (T1 - T0). After 1 week, the teeth were sectioned crosswise in the buccolingual and mesiodistal directions to obtain specimens with approximately 1 mm² thickness and fixed in a universal testing machine to perform μTBS. The Kruskal-Wallis and Dunn tests showed a statistically significant difference for shrinkage in µCT among the XTI and XTB and between the SF and XTB. Regarding the μTBS, all the groups differed from XTB. Bulk fill composites type presents a PS similar to that of the conventional nanoparticulate composite inserted using the incremental technique, but the bond strength was higher for the incremental group, which presented a lower number of pre-test failures when compared to BFC. No correlation was observed between the polymerization shrinkage and bond strength in the studied composites.

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Effect of Different Nd:YAG Laser Power Outputs on Bond Strength of Resin Cement to Zirconia in Comparison to Sandblasting

Journal of lasers in medical sciences ◽

10.34172/jlms.2021.06 ◽

2021 ◽

Vol 12 ◽

pp. e6-e6

Author(s):

Rahab Ghoveizi ◽

Rozbeh Parsirad ◽

Sara Tavakolizadeh ◽

Elaheh Beyabanaki

Keyword(s):

Bond Strength ◽

Nd:Yag Laser ◽

Testing Machine ◽

Resin Cement ◽

Control Group ◽

Significant Difference ◽

Laser Treatments ◽

Laser Group ◽

Strength Difference ◽

Dual Curing

Introduction: This study investigated the effect of various laser powers on the shear bond strength (SBS) of resin cement to the zirconia surface. Methods: Seventy-five zirconia disks were prepared and assigned to five groups including no surface treatment (control group), sandblasting with 50 µ Al2 O3 particles (second group), and Nd:YAG laser treatments with 2 W, 2.5 W and 3 W powers respectively (third, fourth and fifth groups). Afterwards, composite resin cylinders were cemented on zirconia disks using dual-curing resin cement. Before thermocycling (2000 cycles, 5-55°C), all samples were placed in distilled water at 37°C for 24 hours. Using a universal testing machine at the crosshead speed of 0.5 mm/min, the SBS was examined. Also, using a stereomicroscope, the failure type was determined. Data analyses were performed using Welch and Games-Howell tests (P< 0.05). Results: The mean bond strength difference between the control group and the other groups was significant. The respective bond strength from the highest to the lowest was observed in the sandblast group, the laser group with 2.5 W power, the laser group with 3 W power, the laser group with 2 W power, and finally the control group. However, no significant difference was observed between different laser groups (P< 0.05). Also, there was no significant difference between the sandblast and laser groups with 2.5 W and 3 W power (P< 0.05). Most of the failures in the sandblasting and laser groups with powers of 2.5 W and 3 W were mixed, but in the control and 2 W laser groups, most of the failures were of adhesive nature. Conclusion: The highest bond strength was achieved by sandblasting with Al2 O3 particles and then using an Nd: YAG laser with a power of 2.5 W.

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Effect of Simultaneous Sintering of Bioglass to a Zirconia Core on Properties and Bond Strength

Materials ◽

10.3390/ma14237107 ◽

2021 ◽

Vol 14 (23) ◽

pp. 7107

Author(s):

Noha Abdel Mawla El-Wassefy ◽

Mutlu Özcan ◽

Shaimaa Ahmed Abo El-Farag

Keyword(s):

Surface Roughness ◽

Bond Strength ◽

Testing Machine ◽

Surface Hardness ◽

Resin Cement ◽

Bonding Agents ◽

Universal Testing ◽

Significant Difference ◽

Spss Software ◽

Microshear Bond Strength

This study aimed to assess bioglass sintering to a zirconia core on surface properties and bonding strength to resin cement. Zirconia specimens were divided into four groups: G I: sintered; G II: bioglass modified zirconia (a bioglass slurry was sintered with zirconia at 1550 °C); G III: sandblasted using 50 μm Al2O3 particles; and G IV: Z-prime plus application. Surface morphology and chemical analysis were studied using a scanning electron microscope and energy-dispersive spectroscopy. Surface roughness was evaluated using a profilometer. Surface hardness was measured using an indentation tester. For the microshear bond strength test, resin cement cylinders were bonded to a zirconia surface. Half of the specimens were tested after 24 h; the other half were thermocycled (5–55 °C) for 1000 cycles. A shearing load was applied at a crosshead speed of 0.5 mm/min on a universal testing machine. Data were analyzed with ANOVA using SPSS software at (p < 0.05). Results: tThe mean surface roughness of G II was significantly higher than G I and G III. The microhardness of G II was significantly lower than all groups. For bond strength, there was no significant difference between groups II, III, and IV after thermocycling. Conclusions: Bioactive glass can increase the bond strength of zirconia to resin cement, and is comparable to sandblasting and Z-prime bonding agents.

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Micro-shear bond strength of bioactive cement to translucent zirconia after thermocycyling: a comparative in-vitro study

Brazilian Dental Science ◽

10.14295/bds.2020.v23i1.1830 ◽

2020 ◽

Vol 23 (1) ◽

Author(s):

Menna Ahmed ElGendy ◽

Ihab Mosleh ◽

Hanaa Zaghloul

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

Testing Machine ◽

In Vitro Study ◽

Resin Cement ◽

Zirconia Ceramic ◽

Control Group ◽

Significant Difference ◽

Before And After

Objective: the purpose of the study was to evaluate the micro-shear bond strength of different cements to translucent zirconia before and after thermocycling aging. Material and methods: Twelve translucent zirconia ceramic discs were used in the study. Specimens were sandblasted using 50 ‎μm aluminum oxide (Al2O3) particles. The specimens were divided into three groups (n = 4) according to the cement type: Panavia resin cement (control group), resin modified glass ionomer (RMGI), and Activa bioactive cement. Each group was further sub-divided into two equal subgroups (n = 2) according to whether the specimens were subjected to thermocycling or not. Thermocycling was performed in distilled water at 5000 cycles between 5 oC - 55 oC. The micro-shear bond strength test (μSBS) was measured using universal testing machine. Kruskal-Wallis test was used to compare between the three cements. Dunn’s test was used for pair-wise comparisons when Kruskal-Wallis test is significant. Mann-Whitney U test was used to compare between micro-shear bond strength before and after thermocycling P ≤ 0.05. Results: In non-aged subgroups, there was no significant difference between Panavia and Activa; both showed significantly the highest mean μSBS values (22.9 MPa, 31.3 MPa respectively). While, RMGI showed the lowest μSBS values (4.7 MPa). In thermocycled subgroups, Panavia showed significantly the highest mean μSBS values (32.2 MPa). There was no significant difference between RMGI and Activa; both showed the lowest significant mean μSBS values (3.2 MPa and 8.7 MPa respectively). Conclusions: RMGI and Activa couldn’t be considered long-term reliable materials for cementing zirconia. However, Panavia provided the most durable bond to zirconia.KEYWORDSBioactive cement; Micro-shear bond strength; Resin cement; Translucent zirconia.

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Effects of Desensitizers, Temporary Cements, and Dentin Cleaning Methods on the Bond Strength of Self-Etch/ Adhesive Resin Cements to Dentin: An In Vitro Study

Journal of Advanced Oral Research ◽

10.1177/23202068211052796 ◽

2021 ◽

pp. 232020682110527

Author(s):

Mehmet Uğur ◽

I˙dris Kavut ◽

Şafak Külünk ◽

Mehmet Şerif Akdeniz ◽

Özgür Ozan Tanrıkut

Keyword(s):

Bond Strength ◽

Testing Machine ◽

In Vitro Study ◽

Resin Cement ◽

Resin Cements ◽

Adhesive Resin ◽

Significant Difference ◽

Cleaning Methods ◽

Self Etch

Aim: The aim of this study was to evaluate the effect of desensitizer, temporary cements, dentin cleaning methods on shear bond strength (SBS) of self-etch and self-adhesive resin cements to dentin. Materials and Methods: Four hundred eighty buccal or lingual/palatine coronal portions of human molar teeth were mounted in the acrylic blocks. Teeth surfaces were prepared until the dentin was exposed. Specimens were divided into four groups. One group separated as control and three groups of teeth were treated with a desensitizing agent containing calcium-phosphate desensitizer (Teethmate Desensitizer, TMD), resin-based self-reinforcing monomer (Shield Force Plus, SFP) and 2-hydroxyethyl methacrylate and glutaraldehyde (Gluma Desensitizer). Two different temporary cement containing calcium hydroxide (Dycall) and zinc oxide based (Rely X Temp NE) temporary cement were applied to the dentin surfaces. Temporary cement was removed with one of three cleansing techniques: 2% chlorhexidine digluconate and glass particles containing agent (Consepsis Scrub), cleansing bur (OptiClean), and ıntra/extracoronal rotary brush (Starbrush). All groups were further divided into two cementation subgroups (Panavia V5 and Panavia SA). The SBS (MPa) was measured using a universal testing machine at 0.5 mm/min crosshead speed. The data were analyzed statistically with a four-way analysis of variance and Tukey’s Honest Significant Difference test ( α = 0.05). Results: Although SFP showed higher SBS, there was no statistically significant difference between other groups ( P > .05). There were no significant differences between temporary cements ( P > .05). OptiClean rotary bur showed higher mean SBS values in all groups. The dual-polymerized Panavia V5 showed the highest SBS values in all groups ( P <.05). Conclusion: Cleaning of dentin surface from temporary cement remnants with a silicon bur and dual-cure resin cement showed the highest bond strength values.

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