Shear and tensile bond strength comparison of various contemporary orthodontic adhesive systems

An in-vitro study

Reicheneder, Claudia A.
Gedrange, Tomas
Lange, Alexandra
Baumert, Uwe
Proff, Peter

^aSenior instructor, Department of Orthodontics, Regensburg University Medical Center, Regensburg, Germany
^bAssociate professor and chair, Department of Orthodontics, Preventive and Pediatric Dentistry, Medical Center, Ernst-Moritz-Arndt-University of Greifswald, Greifswald, Germany
^cPostgraduate student, Department of Orthodontics, Preventive and Pediatric Dentistry, Medical Center, Ernst-Moritz-Arndt-University of Greifswald, Greifswald, Germany
^dStatistician, Department of Orthodontics, Regensburg University Medical Center, Regensburg, Germany
^eAssociate professor and chair, Department of Orthodontics, Regensburg University Medical Center, Regensburg, Germany
Regensburg and Greifswald, Germany

Reprint requests to: Claudia A. Reicheneder, Department of Orthodontics, Regensburg University Medical Center, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany; e-mail, [email protected].

The authors report no commercial, proprietary, or financial interest in the products or companies described in this article.

Submitted, March 2008; revised and accepted July 2008.

American Journal of Orthodontics and Dentofacial Orthopedics 135(4):p 422e1-422e6, April 2009.

Introduction

The purpose of this study was to compare the shear and tensile bond strengths of 8 common adhesive systems for bonding in orthodontics.

Methods

One hundred sixty freshly extracted bovine mandibular permanent incisors were randomly divided into 8 groups. Self-ligating esthetic Damon 3 brackets (Ormco, Orange, Calif) were bonded by using the following adhesive systems: Quick Bond (chemically and light-cured; Forestadent, Pforzheim, Germany), Blugloo (Ormco), Enlight LV (Ormco), Kurasper F (Kuraray Dental, Frankfurt, Germany), Transbond LR (3M Unitek, Monrovia, Calif), Light Bond (Reliance Orthodontic Products, Itasca, Ill), and Fuji Ortho LC (GC America, Alsip, Ill). After 24 hours, half of each group was debonded measuring the shear bond strength and half measuring the tensile bond strength.

Results

Blugloo showed the best shear bond strength values, whereas Transbond LR and Quick Bond (chemically and light-cured) had the lowest. Tensile strength was the highest with Fuji Ortho LC and the lowest with Quick Bond (chemically and light-cured) and Kurasper F. The tensile strength of light-cured Quick Bond was about 47% lower than that of Fuji Ortho LC.

Conclusions

Blugloo, Fuji Ortho LC, Light Bond, and Enlight LV are among the materials of choice for bonding fixed orthodontic appliances to teeth. All bond strength values were clinically satisfactory except for the tensile strength of chemically and light-cured Quick Bond and Kurasper F.