Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2014 Jan;5(1):123-9.
doi: 10.4103/0976-9668.127305.

Effect of moisture, saliva, and blood contamination on the shear bond strength of brackets bonded with a conventional bonding system and self-etched bonding system

Mandava Prasad  1 , Shamil Mohamed  2 , Krishna Nayak  3 , Sharath Kumar Shetty  4 , Ashok Kumar Talapaneni  2
Affiliations

Effect of moisture, saliva, and blood contamination on the shear bond strength of brackets bonded with a conventional bonding system and self-etched bonding system

Mandava Prasad et al. J Nat Sci Biol Med. 2014 Jan.

Abstract

Background: The success of bonding brackets to enamel with resin bonding systems is negatively affected by contamination with oral fluids such as blood and saliva. The new self-etch primer systems combine conditioning and priming agents into a single application, making the procedure more cost effective.

Objective: The purpose of the study was to investigate the effect of moisture, saliva and blood contamination on shear bond strength of orthodontic brackets bonded with conventional bonding system and self-etch bonding system.

Materials and methods: Each system was examined under four enamel surface conditions (dry, water, saliva, and blood), and 80 human teeth were divided into two groups with four subgroups each of 10 according to enamel surface condition. Group 1 used conventional bonding system and Group 2 used self-etched bonding system. Subgroups 1a and 2a under dry enamel surface conditions; Subgroups 1b and 2b under moist enamel surface condition; Subgroups 3a and 3b under saliva enamel surface condition and Subgroup 4a and 4b under blood enamel surface condition. Brackets were bonded, and all the samples were then submitted to a shear bond test with a universal testing machine with a cross head speed of 1mm/sec.

Results: The results showed that the contamination reduced the shear bond strength of all groups. In self-etch bonding system water and saliva had significantly higher bond strength when compared to other groups.

Conclusion: It was concluded that the blood contamination showed lowest bond strength from both bonding systems. Self-etch bonding system resulted in higher bond strength than conventional bonding system under all conditions except the dry enamel surface.

Keywords: Blood contamination; self-etching bonding system; shear bond strength.

PubMed Disclaimer

Conflict of interest statement

Conflict of Interest: None declared.

Figures

Figure 1
Figure 1
Armamentarium used
Graph 1
Graph 1
Comparison of in the conventional bonding system
Graph 2
Graph 2
Comparison of subgroups in the self-etch bonding system
Graph 3
Graph 3
Comparison of subgroups in the conventional bonding system and the self-etch bonding system
See this image and copyright information in PMC

Similar articles

See all similar articles

Cited by

See all "Cited by" articles

References

    1. Buonocore MG. A simple method of increasing the adhesion of acrylic filling materials to enamel surface. J Dent Res. 1955;34:849–53. - PubMed
    1. Dorminey JC, Dunn WJ, Taloumis LJ. Shear bond strength of orthodontic brackets bonded with a modified 1-step etchant-and primer technique. Am J Orthod Dentofacial Orthop. 2003;124:410–3. - PubMed
    1. Newman GV. Epoxy adhesives for orthodontic attachments: Progress report. Am J Orthod Dentofacial Orthop. 1965;51:901–12. - PubMed
    1. Grandhi RK, Combe EC, Speidel TM. Shear bond strength of stainless steel orthodontic brackets with a moisture-insensitive primer. Am J Orthod Dentofacial Orthop. 2001;119:251–5. - PubMed
    1. Zachrisson BU. A posttreatment evaluation of direct bonding in orthodontics. Am J Orthod Dentofacial Orthop. 1977;71:2. - PubMed

LinkOut - more resources