Evaluation of Shear Bond Strength and Adhesive Remnant Index of Orthodontic Brackets Bonded Directly or Indirectly With Adhesive Resin Cements to Bovine Enamel

ABSTRACT Objective: To examine differences in the shear bond strength of orthodontic brackets on differently mineralized enamel surfaces after applying a caries infiltrant or conventional adhesive. Materials and Methods: A total of 320 bovine incisors were assigned to eight pretreated groups, and the shear force required for debonding was recorded. Residual adhesive was evaluated by light microscopy using the adhesive remnant index. Statistical analysis included Kolmogorov-Smirnov, analysis of variance (ANOVA), and Scheffé tests. Results: The highest bond strength (18.8 ± 4.4 MPa) was obtained after use of the caries infiltrant. More residual adhesive and fewer enamel defects were observed on infiltrated enamel surfaces. Brackets on demineralized enamel produced multiple enamel defects. Conclusions: Acceptable bond strengths were obtained with all material combinations. A caries-infiltrant applied before bracket fixation has a protective effect, especially on demineralized enamel.

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Evaluation of shear-bond strength between different self-adhesive resin cements with phosphate monomer and zirconia ceramic before and after thermocycling

The Journal of Korean Academy of Prosthodontics ◽

10.4047/jkap.2015.53.4.318 ◽

2015 ◽

Vol 53 (4) ◽

pp. 318

Author(s):

Ji-Hun Lee ◽

Min-Kyung Kim ◽

Jung-Jin Lee ◽

Seung-Geun Ahn ◽

Ju-Mi Park ◽

...

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

Zirconia Ceramic ◽

Resin Cements ◽

Adhesive Resin ◽

Before And After

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In Vitro Shear Bond Strength of Three Self-adhesive Resin Cements and a Resin-Modified Glass Ionomer Cement to Various Prosthodontic Substrates

Operative Dentistry ◽

10.2341/11-317-l ◽

2013 ◽

Vol 38 (2) ◽

pp. 186-196 ◽

Cited By ~ 20

Author(s):

Camila Sabatini ◽

Manthan Patel ◽

Eric D'Silva

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

Glass Ionomer Cement ◽

Glass Ionomer ◽

Resin Cements ◽

Adhesive Resin ◽

Setting Reaction ◽

Resin Modified Glass Ionomer ◽

Bond Strengths ◽

Ionomer Cement

SUMMARY Objective To evaluate the shear bond strength (SBS) of three self-adhesive resin cements and a resin-modified glass ionomer cement (RMGIC) to different prosthodontic substrates. Materials and Methods The substrates base metal, noble metal, zirconia, ceramic, and resin composite were used for bonding with different cements (n=12). Specimens were placed in a bonding jig, which was filled with one of four cements (RelyX Unicem, Multilink Automix, Maxcem Elite, and FujiCEM Automix). Both light-polymerizing (LP) and self-polymerizing (SP) setting reactions were tested. Shear bond strength was measured at 15 minutes and 24 hours in a testing device at a test speed of 1 mm/min and expressed in MPa. A Student t-test and a one-way analysis of variance (ANOVA) were used to evaluate differences between setting reactions, between testing times, and among cements irrespective of other factors. Generalized linear regression model and Tukey tests were used for multifactorial analysis. Results Significantly higher mean SBS were demonstrated for LP mode relative to SP mode (p<0.001) and for 24 hours relative to 15 minutes (p<0.001). Multifactorial analysis revealed that all factors (cement, substrate, and setting reaction) and all their interactions had a significant effect on the bond strength (p<0.001). Resin showed significantly higher SBS than other substrates when bonded to RelyX Unicem and Multilink Automix in LP mode (p<0.05). Overall, FujiCEM demonstrated significantly lower SBS than the three self-adhesive resin cements (p<0.05). Conclusions Overall, higher bond strengths were demonstrated for LP relative to SP mode, 24 hours relative to 15 minutes and self-adhesive resin cements compared to the RMGICs. Bond strengths also varied depending on the substrate, indicating that selection of luting cement should be partially dictated by the substrate and the setting reaction.

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Orthodontic bracket bonding without previous adhesive priming: A meta-regression analysis

The Angle Orthodontist ◽

10.2319/041615-255.1 ◽

2015 ◽

Vol 86 (3) ◽

pp. 391-398 ◽

Cited By ~ 10

Author(s):

Aline Segatto Pires Altmann ◽

Felipe Weidenbach Degrazia ◽

Roger Keller Celeste ◽

Vicente Castelo Branco Leitune ◽

Susana Maria Werner Samuel ◽

...

Keyword(s):

Regression Analysis ◽

Bond Strength ◽

Shear Bond Strength ◽

Outcome Measurement ◽

Orthodontic Brackets ◽

Experimental Conditions ◽

Adhesive Resin ◽

Meta Regression ◽

Meta Regression Analysis

ABSTRACT Objective: To determine the consensus among studies that adhesive resin application improves the bond strength of orthodontic brackets and the association of methodological variables on the influence of bond strength outcome. Materials and Methods: In vitro studies were selected to answer whether adhesive resin application increases the immediate shear bond strength of metal orthodontic brackets bonded with a photo-cured orthodontic adhesive. Studies included were those comparing a group having adhesive resin to a group without adhesive resin with the primary outcome measurement shear bond strength in MPa. A systematic electronic search was performed in PubMed and Scopus databases. Results: Nine studies were included in the analysis. Based on the pooled data and due to a high heterogeneity among studies (I2 = 93.3), a meta-regression analysis was conducted. The analysis demonstrated that five experimental conditions explained 86.1% of heterogeneity and four of them had significantly affected in vitro shear bond testing. The shear bond strength of metal brackets was not significantly affected when bonded with adhesive resin, when compared to those without adhesive resin. Conclusions: The adhesive resin application can be set aside during metal bracket bonding to enamel regardless of the type of orthodontic adhesive used.

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Rebonding of Orthodontic Brackets

The Angle Orthodontist ◽

10.2319/022307-90.1 ◽

2008 ◽

Vol 78 (3) ◽

pp. 531-536 ◽

Cited By ~ 19

Author(s):

Mona A. Montasser ◽

James L. Drummond ◽

Carla A. Evans

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

Clinical Performance ◽

Adhesive System ◽

Orthodontic Brackets ◽

Adhesive Systems ◽

Adhesive Remnant Index ◽

Acid Etch ◽

The Mean ◽

Self Etch

Abstract Objective: To compare rebonding of orthodontic brackets based on the hypothesis that no difference would be found between the adhesive systems with respect to shear bond strength, mode of failure, and clinical failure rates. Materials and Methods: The three adhesive systems included two self-etch primers (Transbond and M-Bond) and a conventional phosphoric acid etch (Rely-a-Bond). The sample size was 20 premolars for each adhesive system. The shear bond strength was tested 24 hours after bracket bonding with the bonding/debonding procedures repeated two times after the first debonding. Bond strength, adhesive remnant index (ARI), and failure sites were evaluated for each debonding. Statistical analysis consisted of a two-way analysis of variance (ANOVA) followed by Scheffè analysis. The clinical portion evaluated 15 patients over a 12-month period. Results: The mean shear bond strengths after the first, second, and third debondings for Rely-a-Bond were 8.4 ± 1.8, 10.3 ± 2.4, and 14.1 ± 3.3 MPa, respectively; for Transbond 11.1 ± 4.6, 13.6 ± 4.5, and 12.9 ± 4.4 MPa, respectively; and for M-Bond 8.7 ± 2.7, 10.4 ± 2.4, and 12.4 ± 3.4 MPa, respectively. After the three debondings the mean shear bond strength increased significantly from the first to the third debonding for Rely-a-Bond and M-bond (P ≤ .001), but did not change for Transbond (P = .199). Conclusions: The original hypothesis is not rejected. The two self-etching primers showing higher or comparable bond strength to the conventional phosphoric etch with less adhesive remnant on the enamel surface after the first debonding. With repeated bonding/debonding, the differences in the bond strength, ARI, and failure site were not significantly different. There was no difference in the clinical performance of the three adhesive systems (P = .667).

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Shear bond strength of self-adhesive resin cements to base metal alloy

Journal of Prosthetic Dentistry ◽

10.1016/j.prosdent.2013.06.022 ◽

2014 ◽

Vol 111 (5) ◽

pp. 411-415 ◽

Cited By ~ 7

Author(s):

Susan Hattar ◽

Muhanad Hatamleh ◽

Ameen Khraisat ◽

Mohammad Al-Rabab'ah

Keyword(s):

Bond Strength ◽

Base Metal ◽

Shear Bond Strength ◽

Metal Alloy ◽

Resin Cements ◽

Adhesive Resin ◽

Base Metal Alloy

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Bond strength of modern self-adhesive resin cements to human dentin and different CAD/CAM ceramics

Acta of Bioengineering and Biomechanics ◽

10.37190/abb-01526-2019-02 ◽

2020 ◽

Vol 22 (2) ◽

Author(s):

Andrzej Małysa ◽

Joanna Weżgowiec ◽

Dariusz Danel ◽

Klauss Boening ◽

Katarzyna Walczak ◽

...

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

Failure Modes ◽

Resin Cements ◽

Adhesive Resin ◽

Shear Strength Test ◽

Software Failure ◽

Human Dentin ◽

Cad Cam ◽

Bond Strengths

Purpose: The aim of the study was to evaluate the shear bond strength of CAD/CAM ceramics to dentin after cementation with conventional or self-adhesive resin cements. Methods: Three self-adhesive, self-etching cements (Panavia SA, RelyX U200, Maxcem Elite), and one conventional cement (Panavia V5), were selected to lute three CAD/CAM ceramics (IPS Empress CAD, IPS e.max CAD, IPS e.max ZirCAD) onto the dentin. The bond strength was evaluated using a shear strength test according to the PN-EN ISO 29022:2013-10. Evaluation of the differences was performed using the Statistica software. Failure modes were analyzed using a light microscope. Results: All the studied cements differed (regardless of the ceramic type) in the bond strength. The highest bond strength was observed in Panavia V5, lower – in RelyX U200 and Panavia SA, and the lowest – in Maxcem. For IPS e.max ZirCAD, it was observed that compared to Panavia V5, the other cements were characterized by a significantly higher bond strength. For the IPS Empress CAD and the IPS e.max CAD, Panavia V5 displayed the highest bond strength. For all the studied self-adhesive cements, the failure of adhesion between the cement and dentin was predominant mode. Conclusions: Significant differences were found in the shear bond strengths of the CAD/CAM ceramics luted to dentin using tested self-adhesive and conventional cements. The bond strength depended on the combination of ceramic and cement. The IPS e.max ZirCAD had the highest bond strength to dentin after cementation with RelyX U200, while the IPS Empress CAD and IPS e.max CAD – with Panavia V5.

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Influence of Pre-Etched Area and Functional Monomers on the Enamel Bond Strength of Orthodontic Adhesive Pastes

Applied Sciences ◽

10.3390/app11178251 ◽

2021 ◽

Vol 11 (17) ◽

pp. 8251

Author(s):

Yuriko Tezuka ◽

Yasuhiro Namura ◽

Akihisa Utsu ◽

Kiyotaka Wake ◽

Yasuki Uchida ◽

...

Keyword(s):

Electron Microscopy ◽

Bond Strength ◽

Shear Bond Strength ◽

Functional Monomer ◽

Gap Formation ◽

Sem Images ◽

Functional Monomers ◽

Adhesive Remnant Index ◽

Bovine Enamel ◽

Scanning Electron

This study was performed to investigate the influence of pre-etching area and functional monomers in orthodontic adhesive pastes on enamel bond strength. Bovine enamel was partially pre-etched with phosphoric acid for 30 s over areas with a diameter of 1.0, 2.0 or 3.0 mm, and metal brackets were then bonded with or without functional monomers in the orthodontic adhesive paste. For the baseline groups, the whole adherent area was pre-etched. The shear bond strength (SBS) and adhesive remnant index (ARI) were determined. The adhesive paste/enamel interfaces were observed by scanning electron microscopy (SEM). Although the adhesive paste with functional monomers showed higher SBS than the functional monomer-free adhesive paste in all groups, there were no significant differences in SBS between them regardless of the pre-etched area. The SBS increased with increasing pre-etched area in both orthodontic adhesive pastes. In SEM images of adhesive paste/enamel interfaces, although adhesive with functional monomers showed excellent adaptation, the functional monomer-free adhesive paste showed gap formation at the interface. These findings suggested that the pre-etching area greatly influenced bond strength, regardless of the presence or absence of the functional monomer in the orthodontic adhesive paste.

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