scholarly journals Shear bond strength and debonding characteristics of metal and ceramic brackets bonded with conventional acid-etch and self-etch primer systems: An in-vivo study

2015 ◽  
pp. 0-0
Author(s):  
B Mirzakouchaki ◽  
S Shirazi ◽  
R Sharghi ◽  
S Shirazi ◽  
M Moghimi ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
In Vivo Study ◽  
Acid Etch ◽  
Ceramic Brackets ◽  
Self Etch

scholarly journals Rebonding of Orthodontic Brackets

2008 ◽  
Vol 78 (3) ◽  
pp. 531-536 ◽  
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).

scholarly journals Factors Affecting the Shear Bond Strength of Orthodontic Brackets – a Review of In Vitro Studies

2015 ◽  
Vol 58 (2) ◽  
pp. 43-48 ◽  
Author(s):  
Waleed Bakhadher ◽  
Hassan Halawany ◽  
Nabeel Talic ◽  
Nimmi Abraham ◽  
Vimal Jacob
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Positive Influence ◽  
Orthodontic Brackets ◽  
Factors Affecting ◽  
Bonding System ◽  
Ceramic Brackets ◽  
Bonding Systems

The adhesive material used to bond orthodontic brackets to teeth should neither fail during the treatment period, resulting in treatment delays, untoward expenses or patient inconvenience nor should it damage the enamel on debonding at the end of the treatment. Although the effectiveness of a bonding system and any unfavorable effects on the enamel may be studied by conductingin-vivostudies, it is nearly impossible to independently analyze different variables that influence a specific bonding system in the oral environment.In-vitrostudies, on the other hand, may utilize more standardized protocols for testing different bonding systems and materials available. Thus, the present review focused attention onin-vitrostudies and made an attempt to discuss material-related, teeth-related (fluorotic vs non-fluorotic teeth) and other miscellaneous factors that influences the shear bond strength of orthodontic brackets. Within the limitations of this review, using conventional acid-etch technique, ceramic brackets and bonding to non-fluorotic teeth was reported to have a positive influence on the shear bond strength of orthodontic brackets, but higher shear bond strength found on using ceramic brackets can be dangerous for the enamel.

Evaluation of Retention among Acid-etch and Self-etch Sealants: An in vivo Study

2014 ◽  
Vol 4 ◽  
pp. 21-24
Author(s):  
C Jeevika ◽  
D Prabu ◽  
N Naveen ◽  
M Sunayana ◽  
Adil Ahmed ◽  
...  
Keyword(s):  
In Vivo Study ◽  
Acid Etch ◽  
Self Etch

scholarly journals Comparison of shear bond strength of orthodontic brackets bonded with a universal adhesive using different etching methods

2019 ◽  
Vol 24 (4) ◽  
pp. 33.e1-33.e8 ◽  
Author(s):  
Fereshteh Shafiei ◽  
Ahmadreza Sardarian ◽  
Reza Fekrazad ◽  
Amin Farjood
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Laser Etching ◽  
Universal Adhesive ◽  
Laser Conditioning ◽  
Adhesive Remnant Index ◽  
Acid Etch ◽  
Maxillary Premolars ◽  
Bond Strengths ◽  
Self Etch

ABSTRACT Objective: The aim of this study was to compare the effects of three enamel etching modes - laser-etch, self-etch and acid-etch (5, 10 and 15 s) - on bracket bonding, using a universal adhesive. Methods: Eighty-four maxillary premolars were randomly divided into seven groups (n=12) based on the etching method and the adhesive used for bracket bonding. After water storage and thermocycling, shear bond strength was measured, and adhesive remnant index scores on debonded enamel were determined. Results: There were significant differences between the seven groups regarding bond strength values (p< 0.001). The highest values were observed in universal adhesive with laser etching group, while Transbond XT with acid or laser etching, and universal adhesive used in self-etch mode demonstrated the lowest bond strength. The universal adhesive with the three different etching times presented with statistically similar results, all showing an improvement in bond strength, compared with Scotchbond universal (SBU)/SE. Conclusions: The universal adhesive evaluated in the present study demonstrated statistically similar bond strengths to conventional orthodontic adhesive in self-etch mode. The bond strength can be improved by adding an initial acid etching or laser conditioning step, although enamel damage was observed in some cases.

scholarly journals Effect of Placement Agitation and Drying Time on Dentin Shear Bond Strength: An In Vivo Study

2009 ◽  
Vol 34 (5) ◽  
pp. 524-530 ◽  
Author(s):  
S. Tewari ◽  
A. Goel
Keyword(s):  
Bond Strength ◽  
Clinical Relevance ◽  
Shear Bond Strength ◽  
In Vivo Study ◽  
Drying Time

Clinical Relevance Primer agitation and primer drying time both affect dentin shear bond strength in vivo.

scholarly journals Comparison of shear bond strength of different bonding materials bonded with primer and without primer - An in vivo study

2020 ◽  
Vol 6 (2) ◽  
pp. 56-62
Author(s):  
Abhimanyu Rohmetra ◽  
◽  
Niharika Gupta ◽  
Ankita Jaiswal ◽  
Ragni Tandon ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
In Vivo Study

Antibacterial effect of a brominated self-etch adhesive on carious dentin - An in vivo study

2021 ◽  
Vol 105 ◽  
pp. 103555
Author(s):  
Jana Schmidt ◽  
Sandra Krohn ◽  
René Kallies ◽  
Hartmut Schneider ◽  
Katharina Zeller ◽  
...  
Keyword(s):  
Antibacterial Effect ◽  
In Vivo Study ◽  
Self Etch

scholarly journals The Effects of Prophylactic Ozone Pretreatment of Enamel on Shear Bond Strength of Orthodontic Brackets Bonded with Total or Self-Etch Adhesive Systems

2010 ◽  
Vol 04 (04) ◽  
pp. 367-373 ◽  
Author(s):  
Sevi Burcak Cehreli ◽  
Asli Guzey ◽  
Neslihan Arhun ◽  
Alev Cetinsahin ◽  
Bahtiyar Unver
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Orthophosphoric Acid ◽  
Ozone Treatment ◽  
Bond Failure ◽  
Group 4 ◽  
Group 3 ◽  
Group 2 ◽  
Self Etch ◽  
Group 1

Objectives: The aim of this in vitro study is to determine (1) shear bond strength (SBS) of brackets bonded with self-etch and total-etch adhesive after ozone treatment (2) bond failure interface using a modified Adhesive Remnant Index (ARI).Methods: 52 premolars were randomly assigned into four groups (n=13) and received the following treatments: Group 1: 30 s Ozone (Biozonix, Ozonytron, Vehos Medikal, Ankara, Turkey) application + Transbond Plus Self-Etching Primer (SEP) (3M) + Transbond XT (3M), Group 2: Transbond Plus SEP + Transbond XT, Group 3: 30 s Ozone application + 37% orthophosphoric acid + Transbond XT Primer (3M) + Transbond XT, Group 4: 37% orthophosphoric acid + Transbond XT Primer + Transbond XT. All samples were stored in deionised water at 37oC for 24 hours. Shear debonding test was performed by applying a vertical force to the base of the bracket at a cross-head speed of 1 mm/min.Results: The mean SBS results were Group 1: 10.48 MPa; Group 2: 8.89 MPa; Group 3: 9.41 MPa; Group 4: 9.82 MPa. One-Way Variance Test revealed that the difference between the groups was not statistically significant (P=0.267). Debonded brackets were examined by an optical microscope at X16 magnification to determine the bond failure interface using a modified ARI. The results were (mean) Group 1: 2.38; Group 2: 1.31; Group 3: 3.00; Group 4: 1.92. Multiple comparisons showed that Groups 1 and 2, 2 and 3, 3 and 4 were statistically different (P=0.014, P<.001 and P=0.025).Conclusions: Ozone treatment prior to bracket bonding does not affect the shear bond strength. (Eur J Dent 2010;4:367-373)

Sign in / Sign up

Export Citation Format

Share Document