In vitro comparison of an Er:YAG laser-activated bleaching system with different light-activated bleaching systems for color change, surface roughness, and enamel bond strength

2018 ◽  
Vol 33 (9) ◽  
pp. 1913-1918
Author(s):  
Esra Ergin ◽  
A. Ruya Yazici ◽  
Bercem Kalender ◽  
Aslihan Usumez ◽  
Atilla Ertan ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Bond Strength ◽  
Color Change ◽  
Er:Yag Laser ◽  
In Vitro Comparison

scholarly journals An In Vitro Comparison of the Bond Strength of Composite to Superficial and Deep Dentin, Treated With Er:YAG Laser Irradiation or Acid-Etching

2016 ◽  
Vol 7 (3) ◽  
pp. 167-171 ◽  
Author(s):  
Homayoon Alaghehmand ◽  
Fatemeh Nezhad Nasrollah ◽  
Hanieh Nokhbatolfoghahaei ◽  
Reza Fekrazad
Keyword(s):  
Bond Strength ◽  
Laser Irradiation ◽  
Er:Yag Laser ◽  
Acid Etching ◽  
In Vitro Comparison

scholarly journals In vitro comparison of the tensile bond strength of denture adhesives on denture bases

2013 ◽  
Vol 110 (6) ◽  
pp. 488-493 ◽  
Author(s):  
Doris R. Kore ◽  
Mathew T. Kattadiyil ◽  
Dan B. Hall ◽  
Khaled Bahjri
Keyword(s):  
Bond Strength ◽  
Tensile Bond Strength ◽  
Denture Adhesives ◽  
In Vitro Comparison

scholarly journals The effect of a bleaching agent on the pigment removal and the bond strength of bulk-fill resin composites: an in vitro study

2018 ◽  
Vol 47 (5) ◽  
pp. 298-304
Author(s):  
Caroline de Farias CHARAMBA ◽  
Renally Bezerra Wanderley LIMA ◽  
Sônia Saeger MEIRELES ◽  
Rosângela Marques DUARTE ◽  
Ana Karina Maciel ANDRADE
Keyword(s):  
Bond Strength ◽  
Color Change ◽  
Resin Composite ◽  
Distilled Water ◽  
Filling Material ◽  
Resin Composites ◽  
Bleaching Agent ◽  
Microtensile Testing ◽  
Before And After

Abstract Introduction In order to simplify the technique, reduce the time required for direct adhesive restorations, bulk-fill resin composites have been developed be applied in bulk placement up to 4 mm increments. Objective Evaluating the color change (ΔE) and the microtensile bond strength (μTBS) of bulk fill resin composites (BFRC) to dentin after the immersion in regular beverages and the application of bleaching systems. Method Forty-five human molar teeth were randomly distributed in three groups according to the filling material (n=15): Filtek Bulk Fill, Tetric N Ceram Bulk Fill and Filtek Z100. The restored teeth were immersed in coffee, wine and distilled water (n=5) for 72 hours. The color parameters were measured using a spectrophotometer, having as basis the CIE L*a*b*, before and after tooth staining and application of bleaching processes. Subsequently, the teeth were sectioned to obtain the specimens for the microtensile testing. The ΔE values were analyzed applying the Kruskal-Wallis and the Wilcoxon tests, and the μTBS values were analyzed applying the ANOVA and the Bonferroni tests (p<0.05). Result There were no significant differences in the ∆E values when comparing the BFRCs to the conventional resin composite (CRC) in most of the experimental groups. The ∆E values did not present significant differences before and after the application of bleaching processes for all the tested resin composites. The BFRCs presented higher μTBS values than the CRC after exposure to distilled water, wine and bleaching agent. Conclusion The studied BFRCs presented similar color stability to the CRC. The BFRCs presented higher bond strength to the dentin than the CTC in most of the evaluated conditions. The bleaching agent was not effective in whitening the stained restored teeth.

scholarly journals Evaluation of Self-Etching Adhesive and Er:YAG Laser Conditioning on the Shear Bond Strength of Orthodontic Brackets

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Rosalía Contreras-Bulnes ◽  
Rogelio J. Scougall-Vilchis ◽  
Laura E. Rodríguez-Vilchis ◽  
Claudia Centeno-Pedraza ◽  
Oscar F. Olea-Mejía ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Color Change ◽  
Er:Yag Laser ◽  
Surface Preparation ◽  
Mean Value ◽  
Orthodontic Bracket ◽  
Laser Conditioning ◽  
Group I ◽  
Adhesive Remnant Index

The purpose of this study was to evaluate the shear bond strength, the adhesive remnant index scores, and etch surface of teeth prepared for orthodontic bracket bonding with self-etching primer and Er:YAG laser conditioning. One hundred and twenty bovine incisors were randomly divided into four groups. In Group I (Control), the teeth were conditioned with 35% phosphoric acid for 15 seconds. In Group II the teeth were conditioned with Transbond Plus SEP (5 sec); III and IV were irradiated with the Er:YAG 150 mJ (11.0 J/cm2), 150 mJ (19.1 J/cm2), respectively, at 7–12 Hz with water spray. After surface preparation, upper central incisor stainless steel brackets were bonded with Transbond Plus Color Change Adhesive. The teeth were stored in water at 37°C for 24 hours and shear bond strengths were measured, and adhesive remnant index (ARI) was determined. The conditioned surface was observed under a scanning electron microscope. One-way ANOVA and chi-square test were used. Group I showed the significantly highest values of bond strength with a mean value of 8.2 megapascals (MPa). The lesser amount of adhesive remnant was found in Group III. The results of this study suggest that Er:YAG laser irradiation could not be an option for enamel conditioning.

scholarly journals Análise da eficácia de dentifrícios clareadores e seus efeitos na superfície dental: um estudo in vitro

2021 ◽  
Vol 62 (1) ◽  
pp. 22-32
Author(s):  
Eduardo Monteiro Toschi ◽  
Eliseu Aldrighi Münchow ◽  
Luísa Weber Mercado ◽  
Rafael Melara ◽  
Sandra Liana Henz
Keyword(s):  
Surface Roughness ◽  
Color Change ◽  
Negative Control ◽  
Tooth Whitening ◽  
Over The Counter ◽  
Dental Office ◽  
Color System ◽  
Before And After ◽  
Bovine Enamel

Tooth whitening can be performed at the dental office, at-home or upon the use of OTC (Over-the-Counter) products. Among the latter, there are whitening toothpastes that promise to bleach and to prevent tooth staining. Objectives: (1) to investigate the bleaching and abrasive potential of different whitening dentifrices to enamel; and (2) to evaluate the effect of Oral-B 3D White Perfection® (Oral-B) toothpaste in preventing staining. Materials and Methods: Bovine enamel samples were stained and brushed for 14 days with water (negative control) or with different products: Colgate Total 12® (control), Oral-B, Sensodyne Branqueador Extra Fresh® (Sensodyne), and Colgate Luminous White Advanced® (Colgate). Oral-B was also tested before and after staining. The samples were tested by their color (spectrophotometer) and surface roughness (profilometer). Color change (ΔDE00) was calculated using the CIEDE2000 color system. The data were analyzed using Kruskal-Wallis, SNK, and Mann-Whitney tests (ɑ=5%). Results: The negative control showed the lowest ΔE00 (p

scholarly journals In Vitro Comparison of Pushout Bond Strength of ProRoot MTA, Biodentine and TheraCal

2021 ◽  
pp. e1227-e1232
Author(s):  
N. Dabbagh ◽  
E. Esnaashari ◽  
H. Bakhtiar ◽  
M. Nekoofar ◽  
M. Ghezelsofla
Keyword(s):  
Bond Strength ◽  
In Vitro Comparison
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