scholarly journals A Comparison of Shear Bond Strength of Orthodontic Brackets Bonded with Four Flowable Composites Bonded under Contamination: An Ex-Vivo Study

2015 ◽  
Vol 4 (1) ◽  
pp. 47
Author(s):  
Sunil Kumar M.
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Ex Vivo ◽  
Orthodontic Brackets ◽  
Flowable Composites ◽  
Ex Vivo Study

An Ex Vivo Study of Self-, Light-, and Dual-cured Composites for Orthodontic Bonding

1995 ◽  
Vol 22 (4) ◽  
pp. 319-323 ◽  
Author(s):  
Anne E. Sargison ◽  
John McCabe ◽  
Peter H. Gordon
Keyword(s):  
Bond Strength ◽  
Ex Vivo ◽  
Composite Resins ◽  
The Other ◽  
Orthodontic Brackets ◽  
Bond Failure ◽  
Bond Strengths ◽  
Mechanical Insult ◽  
Ex Vivo Study ◽  
Range Test

It was postulated that using a dual-cured composite to bond orthodontic brackets could result in bond strengths comparable with those of chemically-activated materials and higher than those for light-activated materials. The shear bond strength of four composite resins used to attach mesh-backed orthodontic brackets was measured at 24 hours and following mechanical insult in the ball-mill. Analysis of variance and an SNK range test showed that at 24 hours Dual-cured Porcelite® gave a significantly higher mean bond strength than the other materials (P<0·05). However, following ball-milling the mean bond strength for Right-on® was apparently significantly higher than that of the other materials. (P<0·05). In this study, the mode of bond failure is also analysed and the use of Weibull analysis in bond strength testing is described.

scholarly journals Shear bond strength evaluation of adhesive and tooth preparation combinations used in reattachment of fractured teeth: An ex-vivo study

2015 ◽  
Vol 33 (1) ◽  
pp. 40 ◽  
Author(s):  
Koppolu Madhusudhana ◽  
Anumula Lavanya ◽  
Govula Kiranmayi ◽  
Ramachandruni VamsiKrishna ◽  
Aluru Swaroopkumarreddy ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Ex Vivo ◽  
Strength Evaluation ◽  
Tooth Preparation ◽  
Ex Vivo Study

scholarly journals Comparative Analysis of Different Flavonoids on the Immediate Shear Bond Strength of Bleached Enamel Surface: An ex-vivo Study

2021 ◽  
Vol 5 (3) ◽  
pp. OR1-OR5
Author(s):  
Nidhi Shrivastava ◽  
Marisha Bhandari
Keyword(s):  
Comparative Analysis ◽  
Bond Strength ◽  
Green Tea ◽  
Shear Bond Strength ◽  
Ex Vivo ◽  
Grape Seed ◽  
Positive Control ◽  
Sodium Ascorbate ◽  
Control Groups ◽  
Ex Vivo Study

INTRODUCTION: Bleaching, although considered as the first choice of treatment for discoloured teeth, can be utilized in conjunction with composite resin bonding or veneering and porcelain laminate veneers, to provide a more esthetic result. AIM: The aim of the ex-vivo study is to obtain a comparative analysis to evaluate the effectiveness of antioxidants on the immediate composite bond strength on bleached enamel surface.MATERIALS AND METHOD: Freshly extracted human permanent maxillary central incisors were selected and prepared for the respective study. All the specimens then were randomly divided into two control groups and three experimental groups, each group consisting of 20 specimens each. Among these were three experimental groups 10% Sodium Ascorbate, 5% Grape Seed extracts (Proanthocyanidin, PA) & 10% Green tea extracts (catechins and epigallocatechin gallate, CA and EG) and two control groups (Positive control & Negative control).RESULTS: When compared to Group 1 (positive control, 26.24 ± 0.90 MPa ), Group 3 (5%Grape seed extract; 32.17 ± 1.52 MPa), Group 4 (10% Sodium Ascorbate; 28.91 ±1.50 MPa ) and Group 5 (5% Green tea extract; 24.10 ± 1.21MPa ) showed significantly higher shear bond strength values.CONCLUSION: The present study indicated that the shear bond strength of the antioxidant group (Group3) is higher than all three experimental groups. In addition, the shear bond strength of the bleached group (Group 2) is significantly lower than all the other groups. This implies that immediate use of antioxidants, contributes in reversal the bond strength of bleached enamel.

scholarly journals Comparison of Shear Bond Strength Orthodontic Brackets Bonded to Zirconia and Lithium Disilicate Crowns

2019 ◽  
Vol 53 (1) ◽  
pp. 17-27 ◽  
Author(s):  
Blerim Mehmeti ◽  
Jeta Kelmendi ◽  
Donika Iiljazi-Shahiqi ◽  
Bleron Azizi ◽  
Suzana Jakovljevic ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Lithium Disilicate ◽  
Orthodontic Brackets

scholarly journals Shear bond strength of orthodontic brackets to enamel after application of a caries infiltrant

2014 ◽  
Vol 85 (4) ◽  
pp. 645-650 ◽  
Author(s):  
Laura Mews ◽  
Matthias Kern ◽  
Robert Ciesielski ◽  
Helge Fischer-Brandies ◽  
Bernd Koos
Keyword(s):  
Statistical Analysis ◽  
Bond Strength ◽  
Shear Force ◽  
Shear Bond Strength ◽  
Orthodontic Brackets ◽  
Enamel Defects ◽  
Adhesive Remnant Index ◽  
Demineralized Enamel ◽  
Kolmogorov Smirnov ◽  
Bond Strengths

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.

scholarly journals Effects of Ozone and Prophylactic Antimicrobial Applications on Shear Bond Strength of Orthodontic Brackets

2017 ◽  
Vol 30 (4) ◽  
pp. 101-105 ◽  
Author(s):  
Ozer Alkan ◽  
Betul Oktay Coven ◽  
Betul Ozcopur ◽  
Fatih Kazanci ◽  
Yesim Kaya ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Orthodontic Brackets

scholarly journals The Impact of Chlorhexidine Mouth Rinse on the Bond Strength of Polycarbonate Orthodontic Brackets

2014 ◽  
Vol 15 (6) ◽  
pp. 688-692 ◽  
Author(s):  
Sukumaran Anil ◽  
Farouk Ahmed Hussein ◽  
Mohammed Ibrahim Hashem ◽  
Elna P Chalisserry
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Testing Machine ◽  
Test Group ◽  
Orthodontic Brackets ◽  
Control Group ◽  
Mouth Rinse ◽  
Significant Difference ◽  
Bond Strengths ◽  
The Impact

ABSTRACT Objective The purpose of the current in-vivo study was to assess the effect of using 0.12% chlorhexidine (CHX) mouth rinse, before bonding, on shear bond strength of polycarbonate brackets bonded with composite adhesive. Subjects and methods Eighteen orthodontic patients with a mean age 21.41 ± 1.2 years, who were scheduled to have 2 or more first premolars extracted, were included in this study. Patients were referred for an oral prophylaxis program which included, in part, the use of a mouth rinse. Patients were divided into 2 groups, a test group of 9 patients who used 0.12% CHX gluconate mouth rinse twice daily and a control group of 9 patients who used a mouth rinse without CHX, but with same color. After 1 week, polycarbonate brackets were bonded to first premolars with Transbond XT composite adhesive. Premolars were extracted after 28 days and tested for shear bond strength on a universal testing machine. Student's t-test was used to compare shear bond strengths of both groups. Results No statistically significant difference was found in bond strengths’ values between both groups. The test group (with CHX) has mean shear bond strength of 14.21 ± 2.42 MPa whereas the control group (without CHX) revealed a mean strength of 14.52 ± 2.31 MPa. Conclusion The use of 0.12% CHX mouth rinse, for one week before bonding, did not affect the shear bond strength of polycarbonate brackets bonded with Transbond composite. Furthermore, these brackets showed clinically acceptable bond strength. How to cite this article Hussein FA, Hashem MI, Chalisserry EP, Anil S. The Impact of Chlorhexidine Mouth Rinse on the Bond Strength of Polycarbonate Orthodontic Brackets. J Contemp Dent Pract 2014;15(6):688-692.

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