Epoxy adhesives for orthodontic attachments: Progress report

Newman, George V.

doi:10.1016/0002-9416(65)90203-4

Cited by 390 publications

(200 citation statements)

References 6 publications

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“…In the former, a 25 MPa decrease was observed, while in the latter only a 3% change was measured. It must be noticed that the mechanical properties of the dissimilar brazed joints using Ag-based filler can meet requirements for orthodontic applications, as the maximum load during orthodontic clinic is significantly below the maximum load sustained by the joints [107]. Changing the filler material from Ag-based to Cu did not revealed any significant modification of the mechanical properties of the brazed dissimilar joints.…”

Section: Progress In Materials Science XXX (2017) Xxx-xxxmentioning

confidence: 96%

Welding and Joining of NiTi Shape Memory Alloys: A Review

Oliveira

Miranda

Fernandes

2017

Progress in Materials Science

285

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Section: Progress In Materials Science XXX (2017) Xxx-xxxmentioning

confidence: 96%

Welding and Joining of NiTi Shape Memory Alloys: A Review

Oliveira

Miranda

Fernandes

2017

Progress in Materials Science

285

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“…Since etching was introduced by Buonocore (1) and Newman (2) began direct bonding of orthodontic attachments, composite resin has been the most commonly used bonding system in Orthodontics due to its higher bond strength compared to other materials (3). However, composite resin presents some disadvantages such as the lack of fluoride protection, which increases the risk of white spot formation close to bonded orthodontic brackets (4), the need of a completely dry operative field throughout the bonding procedure (5), and the possibility of enamel damage during debonding (3).…”

Section: Introductionmentioning

confidence: 99%

Effect of etching and light-curing time on the shear bond strength of a resin-modified glass ionomer cement

et al. 2010

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The aim of this study was to assess the influence of etching and light-curing time on the shear bond strength (SBS) and adhesive remnant index (ARI) of a resin-modified glass ionomer cement (RMGIC) upon debonding of orthodontic brackets. Sixty-eight bovine permanent incisors were obtained and embedded in acrylic resin. Edgewise metallic brackets were bonded to the teeth with Fuji Ortho LC RMGIC. The specimens were randomly assigned to 4 groups, using the following etching and light-curing times: G1: 10% polyacrylic acid and 40 s (control); G2: 37% phosphoric acid and 40 s; G3: 10% polyacrylic acid and 50 s; and G4: 37% phosphoric acid and 50 s. Shear test was performed at 0.5 mm/min and the ARI was assessed. G2 (3.6 ± 0.98 MPa) presented significantly higher (p<0.05) SBS than G1 (2.76 ± 0.86 MPa) and G4 (2.86 ± 0.68 MPa), and there was no statistically significant difference (p>0.05) between G2 and G3 (2.94 ± 0.67 MPa). ARI presented prevalence of scores 2 and 3 in all groups. RMGIC SBS enhanced with 37% phosphoric acid etching and 40 s light-curing time, but this did not occur when the light-curing time was increased, regardless of the acid used. RMGIC presented prevalence of failures at the adhesive/bracket interface.

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“…The technique of bonding orthodontic accessories directly to tooth surfaces has become possible after Buonocore's pioneer study (1), which proved the existence of a significantly stronger mechanical bond between restorative materials and dental enamel etched with 85% phosphoric acid for 30 s. The technique involving application of adhesive systems to acid-etched enamel allowed an optimal bonding of orthodontic brackets to tooth surface, which greatly improved and simplified the placement of fixed orthodontic appliances and widen the scopes and perspectives in Orthodontics (2).…”

Section: Introductionmentioning

confidence: 99%

Shear bond strength of new and recycled brackets to enamel

et al. 2006

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The purpose of this study was to evaluate in vitro the shear bond strength of recycled orthodontic brackets. S2C-03Z brackets (Dental Morelli, Brazil) were bonded to the buccal surfaces of 50 extracted human premolars using Concise Orthodontic chemically cured composite resin (3M, USA). The teeth were randomly assigned to 5 groups (n=10), as follows. In group I (control), the bonded brackets remained attached until shear testing (i.e., no debonding/rebonding). In groups II, III and IV, the bonded brackets were detached and rebonded after recycling by 90-μm particle aluminum oxide blasting, silicon carbide stone grinding or an industrial process at a specialized contractor company (Abzil-Lancer, Brazil), respectively. In group V, the bonded brackets were removed and new brackets were bonded to the enamel surface. Shear bond strength was tested in an Instron machine at a crosshead speed of 0.5 mm/min. Data were analyzed statistically by ANOVA and Tukey's test at 5% significance level. There was no statistically significant difference (p>0.05) between the control brackets (0.52 kgf/mm 2 ), brackets recycled by aluminum oxide blasting (0.34 kgf/mm 2 ) and new brackets attached to previously bonded teeth (0.43 kgf/mm 2 ). Brackets recycled by the specialized company (0.28 kgf/mm 2 ) and those recycled by silicon carbide stone grinding (0.14 kgf/mm 2 ) showed the lowest shear strength means and differed statistically from control brackets (0.52 kgf/ mm 2 ) (p<0.05). In conclusion, the outcomes of this study showed that bracket recycling using 90-μm aluminum oxide particle airabrasion was efficient and technically simple, and might provide cost reduction for orthodontists and patients alike.

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Epoxy adhesives for orthodontic attachments: Progress report

Cited by 390 publications

References 6 publications

Welding and Joining of NiTi Shape Memory Alloys: A Review

Welding and Joining of NiTi Shape Memory Alloys: A Review

Effect of etching and light-curing time on the shear bond strength of a resin-modified glass ionomer cement

Shear bond strength of new and recycled brackets to enamel

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