• Users Online: 812
  • Home
  • Print this page
  • Email this page
Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
Year : 2014  |  Volume : 4  |  Issue : 1  |  Page : 20-25

Comparison of Shear Bond Strength and Surface Structure Between Acid Etching and Air-Abrasion Techniques

1 Professor, Department of Orthodontics, Rungta Dental College, Bhilai, Chattisgrah, India
2 Professor and Head, Department of Periodontics, Dr BR Ambedkar Institute of Dental Sciences, Patna, Bihar, India

Correspondence Address:
A Radhika Reddy
Professor, Department of Orthodontics, Rungta Dental College, Bhilai, Chattisgrah
Login to access the Email id

Source of Support: None, Conflict of Interest: None

Rights and PermissionsRights and Permissions

Aim: To compare shear bond strength and surface structure between acid etching and air-abrasion techniques Materials and Methods : Sixty three extracted human premolar teeth were taken, divided into three groups and mounted with color codings. Group l was acid etched with 37% phosphoric acid. Group ll and lll -air abrasion was done with 50μ & 90μ Al2O3 particles respectively. After enamel preparation, from each group one tooth was selected for surface roughness study by scanning electron microscope (SEM). The other sixty teeth were selected to evaluate shear bond strength by Instron universal testing machine. Results : Group I showed significantly higher shear bond strength (10.1± 3.6 Mpa) than Group II and Group III. In SEM study Group l etching pattern showed peripheral dissolution of the prisms. The enamel removal of Group ll was more regular, uniform and less as compared to Group lll. Adhesive remnant index showed that no adhesive material was left on the tooth surface of Group ll & lll as compared to Group l after debonding. Conclusion: From the present study it was concluded that air abrasion can be used as an adjunct to acid etching but by itself it is not a potent enamel preparation agent.

Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded162    
    Comments [Add]    

Recommend this journal