Water and Saliva Contamination Effect on Shear Bond Strength of Brackets Bonded with a Moisture-Tolerant Light Cure System

Vicente, Ascensión; Mena, Ana; Ortiz, A. S.; Bravo, Luis Alberto

doi:10.2319/012208-37.1

Cited by 24 publications

(25 citation statements)

References 16 publications

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“…Findings of this study are quite comparable to the study done by Vicente et al .,[12] on SEP and MIPs. They concluded that under contaminated condition, SEP and MIP primer should be used in conjunction with hydrophilic adhesive system rather than hydrophobic system.…”

Section: Discussionsupporting

confidence: 92%

Shear bond strength comparison of moisture-insensitive primer and self-etching primer

Goswami¹,

Mitali²,

Roy³

2014

J Orthodont Sci

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Context:The detrimental effect of moisture on orthodontic bonding has long been known. Hydrophilic bonding materials have been introduced suggesting the possibility of obtaining successful orthodontic bonding to a moisture contaminated enamel surface.Aims:This study has been performed with an aim to compare the in vitro shear bond strength (SBS) and debonding characteristic of moisture-insensitive primer (MIP) (Transbond MIP) (3M Unitek, South Peck Road, Monrovia, California, USA) and self-etching primer (SEP) (Transbond Plus SEP) (3M Unitek, South Peck Road, Monrovia, California, USA) in combination with a color changing adhesive system (Transbond Plus Color Change) (3M Unitek, South Peck Road, Monrovia, California, USA) under both dry and contaminated condition.Settings and Design:Randomized controlled clinical study.Subjects and Methods:One hundred and twenty freshly extracted teeth for the purpose of orthodontic treatment were collected. Teeth were randomly assigned into four groups, each consisting of 30 specimen and stainless steel brackets were bonded using each primer-adhesive combination under different enamel conditions, that is, dry and enamel contaminated with natural saliva. SBS and adhesive remnant index were calculated for each group.Results:Analysis of variance of SBS for both MIP and SEP under dry and contaminated condition showed no statistical significance (P = 0.5). Chi-square test showed significant difference in debonding characteristics among the test groups (P < 0.001). All the groups showed typical debonding characteristics of separation either at the bracket-adhesive interface or within the adhesive itself.Conclusions:Moisture contamination did not affect the SBS and adhesive remaining on tooth for both MIP and SEP.

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Section: Discussionsupporting

confidence: 92%

Shear bond strength comparison of moisture-insensitive primer and self-etching primer

Goswami¹,

Mitali²,

Roy³

2014

J Orthodont Sci

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“…Although the self-etching adhesive contained less than 2% in weight of bisphenol A diglycidyl ether dimethacrylate (bis-GMA), it included polyethylene glycol dimethacrylate (PEGDMA) in its composition, which might have enhanced its tolerance of wet conditions. [25]…”

Section: Discussionmentioning

confidence: 99%

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

Mandava¹,

Mohamed²,

Nayak³

et al. 2014

J Nat Sc Biol Med

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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.

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“…[14][15][16][17] Few studies are available showing reduced bracket shear bond strength on fluorosed enamel. [18][19][20] However, no literature has been found on bracket bond strength with demineralized dental hard tissue.…”

Section: Introductionmentioning

confidence: 99%

Shear bond strength of brackets to demineralize enamel after different pretreatment methods

Attın¹,

Stawarczyk²,

Keçik

et al. 2011

The Angle Orthodontist

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Objective: To compare the influence of demineralized and variously pretreated demineralized enamel on the shear bond strength of orthodontic brackets. Materials and Methods: Sixty bovine enamel specimens were allocated to five groups (n 5 12). Specimens of group 1 were not demineralized and were not pretreated, but served as controls. The other specimens were demineralized to form artificial carious lesions. Samples from group 2 were only demineralized and were kept untreated in artificial saliva. The other samples were pretreated with highly concentrated fluoride preparations (group 3: Elmex Gelee, 1.23% F; group 4: Clinpro White Varnish, 2.23% F) or with an infiltrating resin (group 5: Icon). After respective pretreatments, brackets were adhesively fixed on all specimens with an adhesive system after etching with 35% phosphoric acid and application of a primer and bracket resin cement (Transbond XT). Bracket shear bond strength was evaluated with a universal testing machine. Statistical analysis was performed by one-way analysis of variance followed by a post-hoc Scheffé test. Results: Shear bond strength in control group 1 was statistically significantly greater compared with that in all other groups. Application of the infiltrating resin Icon (group 5) as pretreatment resulted in statistically significantly greater bond strength as compared with pretreatments with fluoride compounds (groups 3 and 4) and treatment provided without pretreatment (group 2). Groups 2, 3, and 4 did not significantly differ from each other. Conclusion: Pretreatment with the infiltrating resin is a beneficial approach to increasing the shear bond strength of brackets to demineralized enamel. (Angle Orthod. 2012;82:56-61.)

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Water and Saliva Contamination Effect on Shear Bond Strength of Brackets Bonded with a Moisture-Tolerant Light Cure System

Cited by 24 publications

References 16 publications

Shear bond strength comparison of moisture-insensitive primer and self-etching primer

Shear bond strength comparison of moisture-insensitive primer and self-etching primer

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

Shear bond strength of brackets to demineralize enamel after different pretreatment methods

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