Effect of blood and saliva contamination on shear bond strength of brackets bonded with 4 adhesives

Öztoprak, Mehmet Oğuz; Işık, Fulya; Sayınsu, Korkmaz; Arun, Tülin; Aydemir, Bülent

doi:10.1016/j.ajodo.2005.02.035

Cited by 65 publications

(74 citation statements)

References 17 publications

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“…This study affirms the loss of shear bond strength when the enamel surface is contaminated. The bond strength found in a study on dry surfaces was 26.5 MPa differing from the findings (15.28) of other authors (OZTOPRAK et al, 2007), using the same adhesive material. Whereas, the results of the groups in which the enamel was contaminated with blood the results were close to this value (3.08).…”

Section: Discussioncontrasting

confidence: 56%

“…The groups that were submitted to decontamination processes presented bond strength values that were higher than the minimum for orthodontic accessories bonded to enamel (REYNOLDS, 1975), because according to this author a bond strength of 6-8 MPa is adequate for the majority of orthodontic clinical requirements to bear the forces of mastication and orthodontic mechanics (CACCIAFESTA et al, 2004ab;SFONDRINI et al, 2004;OZTOPRAK et al, 2007;GAMA et al, 2013). However, among the methods of decontamination, the groups that were submitted to washing only, presented lower mean values.…”

Section: Discussionmentioning

confidence: 94%

“…To perform this evaluation bovine teeth were used, because previous studies have shown that human and bovine enamel are similar in their physical properties, composition and bond strength, and are reliable for use in bond studies (CACCIAFESTA et al, 2004ab;OZTOPRAK et al, 2007;SFONDRINI et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

“…However, clinical conditions during the act of surgery do not allow ideal isolation of the bonding site, and may cause failure of composites to bond to tooth enamel (CACCIAFESTA et al, 2003;OZTOPRAK et al, 2007;SAYINSU et al, 2007). The properties of a composite may be harmed by various intraoral factors, which include a high degree of humidity inside the oral cavity, aging of the tooth, dental caries, saliva and/or blood at the bonding site (CACCIAFESTA et al, 2004ab).…”

Section: Introductionmentioning

confidence: 99%

“…However, momentary contamination of the bond areas by blood forms an organic pellicle that diminishes enamel porosity, reducing the micro retention creation, and thus making it difficult for composites to adhere (OONSOMBAT et al, 2003;OZTOPRAK et al, 2007;SAYINSU et al, 2007;CAMPOY et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Evaluation of decontamination methods of blood/saliva in the bonding of orthodontic accessories

Pithon¹,

Santos²,

Rey³

et al. 2015

Biosci. J.

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ABSTRACT:This study aimed to evaluate the best method for decontaminating tooth enamel contaminated with blood/saliva before bonding orthodontic accessories, since such contamination is commonly present in surgical procedures of extrusion/orthodontics. 195 bovine incisors were used. Initially their vestibular faces received prophylaxis, H3PO4 at 37% and adhesive application. After this, the vestibular faces of all the teeth were contaminated with blood/saliva. The teeth were then randomly divided into 13 groups (n=15), Group C (Control -without contamination and bonded according to manufacturer's recommendations) and 12 experimental groups according to the decontamination method: Group WD-without decontamination, Group DW-washed with distilled water, Group PS-washed with physiologic solution, Group JA-jets of air, Group G-gauze, Group CW-cotton wool, Group DW+JA-distilled water + jets of air, Group DW+G-distilled water + gauze, Group DW+CW-distilled water + cotton wool, Group PS+JA-physiologic solution + jets of air, Group PS+G-physiologic solution + gauze, Group PS+CW-physiologic solution + cotton wool. After bonding the shear bond strength test was performed on all the samples at a speed of 0.5mm/min. Data were analyzed statistically by ANOVA and Tukey's test at 5% significance level. The results demonstrated absence of statistical differences between the Control and Groups DW+JA and PS+JA (P>0.05). The groups that presented the lowest bond strength values were Group WD, in which no decontamination was performed, and Group PS in which specimens were washed with physiologic solution only. The best methods of decontaminating enamel contaminated with blood/saliva were washing with distilled water or physiologic solution followed by drying with jets of air.

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Section: Discussioncontrasting

confidence: 56%