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RGUHS Nat. J. Pub. Heal. Sci Vol: 14  Issue: 2 eISSN:  pISSN

Original Article

Assessment of Shear bond strength of resin modified glass ionomer cement under different enamel surface conditions in comparison with a composite resin-an in vitro study

Usha Rao Golla, Balshanmugam Baskaranarayanan,

Associate ProfessoS, Department of Orthodontics, Tamilnadu Government Dental College & Hospital, Chennai, Tamil Nadu 

Corresponding author:

Dr Usha Rao Golla Dr Balshanmugam B Associate Professors Department of Orthodontics Tamilnadu Government Dental College and Hospital Chennai 600 003 urmds99@gmail.com balasorthodontics@gmail.com

Year: 2014, Volume: 4, Issue: 3, Page no. 142-147,
Views: 515, Downloads: 3
Licensing Information:
CC BY NC 4.0 ICON
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0.
Abstract

An in vitro study was carried out at the Department of Orthodontics and Dentofacialorthopaedics, Tamilnadu Government Dental College and Hospital, Chennai,

With an aim to determine the shear bond strengths of the resin modified glass ionomer cement (Fuji Ortho LC) under five different enamel surface conditions before bonding and compare the same with a conventional chemically cured composite resin adhesive (Unite, 3M Unitek). Ninety non-carious premolar teeth that were extracted for orthodontic treatment purposes were used and subjected to different enamel conditions. The shear bond strength of the resin modified glass ionomer cement for its efficacy in orthodontic bonding was also studied.

The results showed that the mean shear bond strengths were significantly different (P < 0.001) among different enamel conditions and that the shear bond strength of moist enamel surface, etched with 10% polyacrylic acid for 20 seconds [13.44 Mpa] approached the bond strength of composite resin [13.65 Mpa]. 

<p>An in vitro study was carried out at the Department of Orthodontics and Dentofacialorthopaedics, Tamilnadu Government Dental College and Hospital, Chennai,</p> <p>With an aim to determine the shear bond strengths of the resin modified glass ionomer cement (Fuji Ortho LC) under five different enamel surface conditions before bonding and compare the same with a conventional chemically cured composite resin adhesive (Unite, 3M Unitek). Ninety non-carious premolar teeth that were extracted for orthodontic treatment purposes were used and subjected to different enamel conditions. The shear bond strength of the resin modified glass ionomer cement for its efficacy in orthodontic bonding was also studied.</p> <p>The results showed that the mean shear bond strengths were significantly different (P &lt; 0.001) among different enamel conditions and that the shear bond strength of moist enamel surface, etched with 10% polyacrylic acid for 20 seconds [13.44 Mpa] approached the bond strength of composite resin [13.65 Mpa].&nbsp;</p>
Keywords
shear bond strength, Resin modified glass ionomer, composite resins, bracket bonding, and enamel surface conditions
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