Bond strength with APF applied after acid etching

Meng, Ching Liang; Li, Chung Hsing; Wang, Wei Nan

doi:10.1016/s0889-5406(98)70170-2

Cited by 51 publications

(46 citation statements)

References 18 publications

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“…This was in accordance with previous studies. [21][22][23] In contrast to our findings, Meng et al 24 found that the application of acidulated phosphate fluoride after acid etching enamel had an adverse effect on orthodontic bond strength of human enamel. Additionally, Karaman and Uysal 22 stated that different forms of antimicrobial varnishes have some effect on bond strength of orthodontic brackets.…”

contrasting

confidence: 97%

Bond strength of different bonding systems to the lingual surface enamel of mandibular incisors

et al. 2010

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contrasting

confidence: 97%

Bond strength of different bonding systems to the lingual surface enamel of mandibular incisors

et al. 2010

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“…It has been suggested 24,[31][32][33] that topical fluoride application interferes with the etching effect of phosphoric acid on enamel and results in reduced bond strength of dental resins. Gwinnet and Smith 34 explained the reduction in bond strengths by the disrupting formation of enamel tags.…”

Section: Discussionmentioning

confidence: 99%

Do fluoride and casein phosphopeptide–amorphous calcium phosphate affect shear bond strength of orthodontic brackets bonded to a demineralized enamel surface?

Uysal¹,

Baysal²,

Uysal³

et al. 2011

The Angle Orthodontist

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Objective: To compare the effects of fluoride and casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) containing topical agents on shear bond strength (SBS) and fracture mode of orthodontic brackets bonded to demineralized enamel. Materials and Methods: Eighty freshly extracted human premolar teeth were randomly divided into four equal groups. The first group was the control, and no pretreatment was performed on this group. In the remaining three groups, demineralization process was performed and teeth were stored in artificial saliva. In group II, bonding was performed after demineralization. Pretreatment with fluoride and CPP-ACP gels was performed in groups III and IV, respectively. Brackets were bonded using a conventional system. The SBS of these brackets was measured and recorded in MPa. Adhesive remnant index (ARI) scores were determined after the brackets failed. Data were analyzed with analysis of variance (ANOVA), Tukey, and G-tests at the P , .05 level. Results: ANOVA comparison of four groups revealed statistically significant differences. No significant differences were found between control and CPP-ACP-treated groups. However, lower SBS values were recorded for group II (6.6 6 3.9 MPa) and group III (17.1 6 2.9 MPa). ARI scores were significantly different among the four groups (P , .001). No enamel detachment was found in the control group, and enamel detachment measured 75% for group II. Conclusions: Fluoride and CPP-ACP gel applications showed higher debonding forces compared to bonding in untreated demineralized samples. CPP-ACP pretreatment resulted in comparable SBS values compared with the control group. (Angle Orthod. 2011;81:490-495.)

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“…However, these findings are not unanimous in the literature, since Meng et al (21) found that APF application after etching reduced the bond strength of brackets to enamel.…”

Section: Group (N=12)mentioning

confidence: 95%

Effect of fluoride solutions on the shear bond strength of orthodontic brackets

et al. 2012

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The aim of this in vitro study was to evaluate the shear bond strength of brackets after pre-treatment with different fluoride solutions. This study used 48 freshly extracted sound bovine incisors that were randomly assigned to 4 experimental groups (n=12). CG: (control) without treatment; NF: 4 min application of neutral fluoride; APF: application of 1.23% acidulated phosphate fluoride (APF) for 4 min; and SFV: application of 5% sodium fluoride varnish for 6 h. For each group, after surface treatment, prophylaxis of enamel and bracket bonding with Transbond XT composite resin (3M) were performed following the manufacturer's specifications. The shear bond strength was performed with a universal testing machine 24 h after fixing the brackets. The tooth surfaces were analyzed to verify the adhesive remnant index (ARI). Data were analyzed statistically by ANOVA and Tukey's test (α=0.05). There was statistically significant difference among the groups (p<0.0001). CG and NF groups presented significantly higher bond strength than APF and SFV. There was no significant difference between CG and NF or between APF and SFV (p>0.05). The analysis of ARI scores revealed that most failures occurred at the enamel-resin interface. It may be concluded that the pre-treatment of enamel with 1.23% APF and 5% SFV prior to fixing orthodontic brackets reduces shear bond strength values.

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Bond strength with APF applied after acid etching

Cited by 51 publications

References 18 publications

Bond strength of different bonding systems to the lingual surface enamel of mandibular incisors

Bond strength of different bonding systems to the lingual surface enamel of mandibular incisors

Do fluoride and casein phosphopeptide–amorphous calcium phosphate affect shear bond strength of orthodontic brackets bonded to a demineralized enamel surface?

Effect of fluoride solutions on the shear bond strength of orthodontic brackets

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