The influence of salivary contamination on the shear bond strength of two newer generation dentin bonding agents - An<i>in vitro</i>study

Hegde, Mithra N; Hegde, Priyadarshini; Shetty, Shibani

doi:10.4103/0972-0707.45252

Cited by 8 publications

(13 citation statements)

References 6 publications

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“…This could be due to the adsorption of glycoproteins onto the poorly polymerized adhesive surface, which results in oxygen inhibition. [1518] The result of the present study is in agreement with the result of an earlier study done by Fritz et al . using a one-step adhesive, which concluded that in a one bottle adhesive system, any contamination of the already cured adhesive layer seriously compromises the bond strength.…”

Section: Discussionsupporting

confidence: 93%

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Effect of saliva and blood contamination on the bond strength of self-etching adhesive system- An in vitro study

et al. 2012

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Aim:The aims of this study were to determine the effect of saliva and blood contamination on the shear bond strength of self-etching adhesive to enamel and dentin; and, to compare the difference in bond strength due to contamination beforeand after application of the self-etch adhesive.Materials and Methods:40 human mandibular molars were wet ground on both buccal and lingual surfaces to prepare flat superficial enamel and dentin surfaces. They were randomly divided into two groups (n = 40) based on the substrate (enamel and dentin). Each group was further divided into five subgroups (n = 8) based on the type of contamination it was subjected to, and the step in the bonding sequence when the contamination occurred (before or after adhesive application). Fresh saliva and fresh human blood were applied either before or after the application of Xeno III® self-etching adhesive system (SES). Composite resin was applied as inverted, truncated cured cones that were subjected to shear bond strength test.Statistical Analysis:One-way analysis of variance (ANOVA) and Tukey's Honestly Significant Difference (HSD) test were used.Results:Statistically significant reduction in the bond strength was shown after both saliva and blood contamination before and after Xeno III® application (P< 0.05). Bond strength is significantly reduced after contamination with blood as compared to saliva.Conclusions:When self-etching adhesive systems are used, saliva and blood contamination significantly decrease the bond strength of the adhesive to enamel and dentin of the tooth.

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Section: Discussionsupporting

confidence: 93%

“…[815]Adhesive application after rinsing and drying of contaminants showed better bond strength. This is because cleaning procedure was able to remove the contaminants from tooth surface andalso render a better adhesion, which is in agreement with the results obtained by many studies.…”

Section: Discussionmentioning

confidence: 99%

Effect of saliva and blood contamination on the bond strength of self-etching adhesive system- An in vitro study

et al. 2012

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“…The literature about the effect of saliva contamination on the bond strength facilitated by self-etch adhesives is ambiguous. Some studies conveyed that the self-etching adhesives are more vulnerable to salivary contamination in the dentine [5,[12][13][14][15][16][17]; in contrast, few studies ascertained that there was no significant difference due to salivary contamination in bond quality while bonding to the dentine [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

The long-term consequence of salivary contamination at various stages of adhesive application and clinically feasible remedies to decontaminate

Nair

Ilie

2020

Clin Oral Invest

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Objective To analyse the bond quality in dentine post-ageing after salivary contamination and decontamination at different stages of dental adhesive application. Materials and methods A total of 1120 human dentine specimens were randomly allocated to 14 groups for four intervals (n = 20) to be treated with a self-etching (SE) and universal (U) adhesive. The saliva contamination and decontamination were implemented after surface preparation, after primer application (for SE) and after adhesive curing. The decontamination groups were either rinsed and air-dried or rinsed, air-dried and reapplied with adhesive. They were stored (37°C, distilled water) for four intervals (1 week, 1 month, 3 months and 1 year) and subjected to shear bond strength (SBS) test at a crosshead speed of 0.5 mm/ min. Result One-way ANOVA with Tukey's test (α = 0.05) revealed significant reduction in SBS in all the groups in U adhesive compared with the control group at 1 week (p < 0.0001) and in SE when the contamination took place after primer application. However, decontamination improved the SBS in SE but not in U adhesive. The univariate analysis confirmed significant influences (p < 0.0001) seen by treatment procedure (η 2 p =0.075), type of adhesive (η 2 p = 0.328), ageing (η 2 p = 0.13), experimental groups (η 2 p = 0.518), and the stage of influence (η 2 p = 0.60). Conclusion Saliva contamination is detrimental after primer application in SE but, decontamination regained the SBS and maintained it over time. In U adhesive, SBS deteriorated over time irrespective of the contamination. Clinical relevance Salivary contamination showed different influences on SBS at various stages of restoration with contemporary dental adhesives.

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“…[ 16 ] So, the separately light-cured P90 primer can actually be regarded as a one-step self-etch adhesive. [ 12 ] Several saliva contamination studies[ 1 2 17 ] concluded that with one-step adhesive systems, glycoproteins in saliva adsorb onto the poorly polymerized adhesive layer, thereby preventing adequate co-polymerization.…”

Section: Discussionmentioning

confidence: 99%

“… Adsorption of glycoproteins to the poorly polymerized adhesive surfaces, thus preventing adequate polymerization Rinsing of the contaminant after adhesive application could have disrupted the oxygen inhibited and unpolymerized layer, thereby compromising the co-polymerization with the subsequent resin layer. [ 17 18 19 ] …”

Section: Discussionmentioning

confidence: 99%

Effect of saliva contamination on the shear bond strength of a new self-etch adhesive system to dentin

et al. 2014

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Aims and Objectives:To evaluate the effect of saliva contamination on the shear bond strength of a new two-step self-etch adhesive (P90 system adhesive) to dentin and to determine the effect of contaminant removing treatments on the recovery of bond strengths.Materials and Methods:The buccal surfaces of 40 human premolars were ground to expose dentin. The specimens were randomly divided into four groups. Group 1 is uncontaminated and serves as the control group. Further groups were divided based on the step in the bonding sequence when the contamination had occurred as follows: Group 2 (primer, saliva contamination, rinse and dry), group 3 (after procedure of group 2, reapplication of primer), and group 4 (after procedure like in control group, saliva contamination, rinse and dry). Filtek P90 composite resin cylinders of 3 mm diameter and 3 mm length were fabricated on the surfaces. Shear bond strength testing was done in an Instron Universal Testing Machine and the data were subjected to one-way analysis of variance (ANOVA) and Student's t-test.Results:With P90 system adhesive, group 2 and group 4 showed lower shear bond strength than group 1 (control) and group 3 (P < 0.05).Conclusion:Saliva contamination significantly decreased the shear bond strength of the adhesive to dentin.

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The influence of salivary contamination on the shear bond strength of two newer generation dentin bonding agents - Anin vitrostudy

Cited by 8 publications

References 6 publications

Effect of saliva and blood contamination on the bond strength of self-etching adhesive system- An in vitro study

Effect of saliva and blood contamination on the bond strength of self-etching adhesive system- An in vitro study

The long-term consequence of salivary contamination at various stages of adhesive application and clinically feasible remedies to decontaminate

Effect of saliva contamination on the shear bond strength of a new self-etch adhesive system to dentin

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