The effect of blood contamination on the shear bond strength of orthodontic brackets with the use of a new self-etch primer

Oonsombat, Charuphan; Bishara, Samir E.; Ajlouni, Raed

doi:10.1067/mod.2003.s0889540603000490

Cited by 23 publications

(31 citation statements)

References 10 publications

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“…In the present study, when the tooth surfaces were contaminated, and no decontamination was performed the bond strength values fell significantly when compared with the Control Group that presented a mean of 4.78 MPa. This bond strength value is lower than the clinically accepted one, which is in agreement with previous investigations (OONSOMBAT et al, 2003;CACCIAFESTA et al, 2004b;SFONDRINI et al, 2004;SFONDRINI et al, 2010). This demonstrates the need for decontaminating the enamel surface before bonding when the material of choice is Transbond XT, since this material has no affinity for humidity.…”

Section: Discussionsupporting

confidence: 62%

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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: Discussionsupporting

confidence: 62%

“…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%

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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“…No significant statistical differences were found between hydrophobic and hydrophilic bond systems with exposure to saliva (P 5 .861). Previous studies of bond strength with hydrophilic bond systems and saliva contamination have produced controversial results; some have found an increase in bond strength, [5][6][7][8][9][10][11] and others found either no significant decrease 4 or a significant decrease. 7 Differences in experimental design, such as the use of artificial or human saliva, and their quantity could explain such varying results.…”

Section: Discussionmentioning

confidence: 98%

“…In particular, it can be difficult to bond attachments to hard-to-reach places such as the gingival area, second molars, and partially erupted or impacted teeth. [8][9][10][11] In these cases, bonding failure is common, and rebonding, which consumes chair time and is a burden for both orthodontist and patient, becomes necessary. 11 In unsuccessful bonding procedures, most of the porosities produced by the enamel acid-etch procedure become plugged with moisture.…”

Section: Introductionmentioning

confidence: 99%

“…12 For this reason, several studies have evaluated the effects of contaminants like water, saliva, and blood on SBS. 3,4,6,8,10,14 The aim of this research was to evaluate, after thermocycling, the SBS of hydrophobic Transbond XT/ XT primer (TXT/XT; 3M/Unitek, Monrovia, Calif) and hydrophilic Transbond MR Plus Color Change/Transbond Self Etching Primer (TPCC/TSEP; 3M/Unitek) bonding systems exposed to four surface conditions (dry, water, saliva, and blood).…”

Section: Introductionmentioning

confidence: 99%

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Shear bond strength of brackets bonded with hydrophilic and hydrophobic bond systems under contamination

Santos¹,

Pithon²,

Ruellas³

et al. 2010

The Angle Orthodontist

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Objective: To compare, in vitro, the shear bond strength (SBS) of two bond systems: Transbond XT/XT primer (TXT/XT) and Transbond Plus Color Change/Transbond Self Etching Primer (TPCC/ TSEP). Materials and Methods: Each system was examined under four enamel surface conditions (dry, water, saliva, and blood), and 160 bovine teeth were divided into eight groups of 20 according to enamel surface condition. Group 1 used TPCC/TSEP and Group 2 used TXT/XT under dry conditions; Group 3 used TPCC/TSEP and Group 4 used TXT/XT with water; Group 5 used TPCC/ TSEP and Group 6 used TXT/XT under saliva; and Group 7 used TPCC/TSEP and Group 8 used TXT/XT with blood. Brackets were bonded, and the samples were thermocycled 500 times between 5uC and 55uC; they were then submitted to a shear bond test with a universal testing machine with a 50 kgf load cell at 5 mm/min. Results: Although water and saliva affected TXT/XT more than they affected TPCC/TSEP, there were no significant differences among the groups (Groups 3 and 4: P 5 .940; Groups 3 and 5 and Groups 4 and 6: P 5 1.000; Groups 3 and 6: P 5 .988; Groups 4 and 5: P 5 .690; and Groups 5 and 6: P 5 .861). Conclusions: The presence of blood resulted in the lowest SBS from both bond systems, but especially from TXT/XT. TPCC/TSEP resulted in a higher SBS than TXT/XT under all conditions except the dry enamel surface. (Angle Orthod. 2010;80:963-967.)

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Effect of saliva contamination of shear bond strength of orthodontic brackets when using a self-etch primer

Mao

Juan

2005

Current Medical Science

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The effect of saliva contamination on the shear bond strength of orthodontic brackets, at various stages of the bonding procedure using a new self-etch primer was studied. The samples were divided into 4 groups according to 4 different enamel surface conditions: Group A: dry; Group B: saliva contamination before priming; Group C: saliva contamination after priming, and Group D: saliva contamination before and after priming. Stainless steel brackets were bonded in each test group with a light-cured composite resin (TransbondXT 3M). The shear bond strength was determined in the first 30 min after bonding. The analysis of variance indicated that the shear bond strengths of the 4 groups were significantly different (F = 11.89, P < 0.05). Tukey HSD tests indicated that contamination both before and after the application of the acid-etch primer resulted in a significantly lower (=4.6 +/- 1.7 MPa) shear bond strength than either the control group (=8. 8 +/- 1.9 MPa) or the groups where contamination occurred either before ( = 7.9 +/- 2.0 MPa) or after (= 6. 9 +/- 1.5 MPa) the application of the primer. It was concluded that the new acid-etch primer could maintain adequate shear bond strength if contamination occurred either before or after the application of the primer. On the other hand, contamination both before and after the application of the primer could significantly reduce the shear bond strength of orthodontic brackets.

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The effect of blood contamination on the shear bond strength of orthodontic brackets with the use of a new self-etch primer

Cited by 23 publications

References 10 publications

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

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

Shear bond strength of brackets bonded with hydrophilic and hydrophobic bond systems under contamination

Effect of saliva contamination of shear bond strength of orthodontic brackets when using a self-etch primer

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