alexa Abstract | The Effect of Different Forms of Antioxidant Surface Treatment on the Shear Bond Strength of Composite Restorations to Bonded to Office- Bleached Enamel
e-ISSN: 2320-7949 and p-ISSN: 2322-0090

Research & Reviews: Journal of Dental Sciences
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Research Article Open Access


Purpose: To investigate the effects of two different forms of sodium ascorbate (solution and gel) as antioxidant surface treatments in reversing the compromised bond strength after vital in-office tooth bleaching with 38% hydrogen peroxide. Materials and Methods: The study included 25 natural teeth (premolars). The crown of each tooth was sectioned in the mesio-distal direction to use both the buccal and lingual enamel surfaces for the bonding procedures. Then, the samples were randomly divided into 5 groups (n=10), according to different treatment options of bleaching and bonding. The specimens were then subjected to a shear bond strength test using a universal testing machine. The modes of bond failure were determined using a stereomicroscope and a digital camera. Results: Bleached enamel immersed in saliva for two weeks before bonding and nonbleached enamel surfaces showed significantly higher bond strengths to composite resin than did enamel surfaces bonded immediately after bleaching without an antioxidant surface treatment (P=.000). There was no significant difference between delaying bonding for two weeks after bleaching and bonding without any bleaching procedure (P=.999). A resin composite bonded to bleached enamel surfaces that were treated with both antioxidants in the different solution forms showed a significantly higher shear bond strength than did a resin composite bonded immediately after bleaching (P=.000). There was no significant difference between the use of sodium ascorbate solution or gel in the shear bond strength (P=.999). It was noted that most the adhesive failures in this study were at the adhesive/resin interface Conclusion: Bonding resin composite immediately after enamel bleaching with 38% hydrogen peroxide reduced the shear bond strength. Both the gel and solution forms of 10% sodium ascorbate can reverse the reduced bond strength after in-office enamel bleaching.

To read the full article Peer-reviewed Article PDF image | Peer-reviewed Full Article image

Author(s): Amal S. Al Awdah, Al Hanouf A. Al Habdan, Nourah Al Muhaisen and Raba’a Al Khalifah


Sodium ascorbate, Vital bleaching, Composite, Hydrogen peroxide, Endodontics, Tooth Decay, Pedodontics

Share This Page

Additional Info

Loading Please wait..
Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version