Effect of blood contamination on shear bond strength of orthodontic brackets and disinclusion buttons

The British Journal of Oral & Maxillofacial Surgery
Maria Francesca SfondriniAndrea Scribante

Abstract

Our aim was to assess the effect of blood contamination on the shear bonding strength and sites of failure of orthodontic brackets and bondable buttons. We randomly divided 160 bovine permanent mandibular incisors into 8 groups of 20 specimens each. Both orthodontic brackets (Step brackets, Leone, Sesto Fiorentino, Italy) and bondable buttons (Flat orthodontic buttons, Leone, Sesto Fiorentino, Italy) were tested on four different enamel surfaces: dry; contamination with blood before priming; after priming; and before and after priming. Brackets and buttons were bonded to the teeth and subsequently tested using a Instron universal testing machine. Shear bonding strength and the rate of adhesive failures were recorded. Data were analysed using the analysis of variance (ANOVA), Scheffè tests, and the chi-square test. Uncontaminated enamel surfaces showed the highest bonding strengths for both brackets and buttons. When they were contaminated with blood, orthodontic brackets had significantly lower shear strengths than bondable buttons (P=0.0001). There were significant differences in sites of failure among the groups for the various enamel surfaces (P=0.001). Contamination of enamel by blood during bonding lowers the strength of t...Continue Reading

References

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Citations

Apr 6, 2013·Journal of Applied Oral Science : Revista FOB·Kerem KilicBulent Kesim
Dec 12, 2012·Medicina oral, patología oral y cirugía bucal·Andrea ScribantePaola Gandini
Oct 2, 2012·The British Journal of Oral & Maxillofacial Surgery·Gururaj ArakeriPeter A Brennan
May 1, 2012·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Matheus Melo PithonNatalli Cardoso Cafeseiro D'el Rey
Jun 14, 2013·BioMed Research International·Maria Francesca SfondriniAndrea Scribante
Sep 27, 2000·The Journal of Prosthetic Dentistry·S Kiat-amnuayL J Goldsmith
Jul 17, 2013·Journal of Applied Oral Science : Revista FOB·Paola GandiniAndrea Scribante
Jul 1, 2020·BioMed Research International·Maria Francesca SfondriniAndrea Scribante
Jun 6, 2020·Journal of Orofacial Orthopedics = Fortschritte Der Kieferorthopädie : Organ/official Journal Deutsche Gesellschaft Für Kieferorthopädie·Alexandre Fausto Veiga JardimCarlos Estrela
Dec 3, 2020·Journal of Veterinary Science·Aneta OlekElżbieta Bołtacz-Rzepkowska
Apr 4, 2021·Materials·Maria Francesca SfondriniAndrea Scribante

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