Self-Etching Primers – an Alternative to the Conventional Acid Etch Technique?

Fritz, Ulrike; Diedrich, Peter; Finger, Werner J.

doi:10.1007/pl00001931

Cited by 49 publications

(65 citation statements)

References 17 publications

(33 reference statements)

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“…Toledano et al 21 (2001) found 50% of adhesive fractures and 50% of mixed fractures with the same adhesive system used in G2. However, Fritz et al 5 (2001) found 60% of enamel-cohesive fractures, and, in Miyazaki et al 14 (2002), a tendency of mixed and cohesive fractures was observed when this system was used.…”

Section: Discussionmentioning

confidence: 94%

“…4,5,9,14,17 . The specimens were randomly assigned to three experimental groups (n = 20): G1: Prime & Bond 2.1 (Dentsply Ind., Rio de Janeiro, RJ, Brazil) total etching single-component system, G2: Clearfil SE Bond (Kuraray Medical Inc., Tokyo, Japan) self-etching primer, and G3: One-Up Bond F (Tokuyama Dental Corp., Tokyo, Japan) self-etching adhesive system.…”

Section: Methodsmentioning

confidence: 99%

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Bond strength of adhesive systems to human tooth enamel

Paradella

Fava

2007

Braz. oral res.

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The purpose of this study was to evaluate in vitro three adhesive systems: a total etching single-component system (G1 Prime & Bond 2.1), a self-etching primer (G2 Clearfil SE Bond), and a self-etching adhesive (G3 One Up Bond F), through shear bond strength to enamel of human teeth, evaluating the type of fracture through stereomicroscopy, following the ISO guidance on adhesive testing. Thirty sound premolars were bisected mesiodistally and the buccal and lingual surfaces were embedded in acrylic resin, polished up to 600-grit sandpapers, and randomly assigned to three experimental groups (n = 20). Composite resin cylinders were added to the tested surfaces. The specimens were kept in distilled water (37°C/24 h), thermocycled for 500 cycles (5°C-55°C) and submitted to shear testing at a crosshead speed of 0.5 mm/min. The type of fracture was analyzed under stereomicroscopy and the data were submitted to Anova, Tukey and Chi-squared (5%) statistical analyses. The mean adhesive strengths were G1: 18.13 ± 6.49 MPa, (55% of resin cohesive fractures); G2: 17.12 ± 5.80 MPa (90% of adhesive fractures); and G3: 10.47 ± 3.14 MPa (85% of adhesive fractures). In terms of bond strength, there were no significant differences between G1 and G2, and G3 was significantly different from the other groups. G1 presented a different type of fracture from that of G2 and G3. In conclusion, although the total etching and self-etching systems presented similar shear bond strength values, the types of fracture presented by them were different, which can have clinical implications. Descriptors: Shear strength; Dentin-bonding agents; Dental enamel.Resumo: O objetivo deste estudo foi avaliar in vitro três sistemas adesivos: um monocomponente com condicionamento ácido total (G1 Prime & Bond 2.1), um "primer" autocondicionante (G2 Clearfil SE Bond) e um adesivo autocondicionante (G3 One Up Bond F), através de resistência ao cisalhamento ao esmalte de dentes humanos, avaliando o tipo de fratura por estereomicroscopia, seguindo as normas ISO para testes adesivos. Trinta pré-molares hígidos foram seccionados ao meio em sentido mésio-distal, incluídos em resina acrílica, polidos até lixa d'água de granulação 600 e aleatoriamente divididos em três grupos (n = 20). Cilindros de resina composta foram adicionados às superfícies de teste. Os espécimes foram armazenados em água destilada (37°C/24 h), termociclados por 500 ciclos (5°C-55°C) e submetidos ao teste de cisalhamento com velocidade de 0,5 mm/min, sendo o tipo de fratura analisado sob estereomicroscopia e os dados submetidos à análise estatística Anova, Tukey e Qui-quadrado (5%). As médias de resistência adesiva foram: G1: 18,13 ± 6,49 MPa, (55% de fraturas coesivas em resina); G2: 17,12 ± 5,80 MPa (90% de fraturas adesivas) e G3 10,47 ± 3,14 MPa (85% de fraturas adesivas). Em termos de resistência adesiva, não houve diferenças significantes entre G1 e G2, tendo G3 apresentado diferença significante em relação aos demais grupos. G1 apresentou tipo de fratura diferente de G2 e G3. Em...

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Section: Discussionmentioning

confidence: 94%

Section: Methodsmentioning

confidence: 99%

Bond strength of adhesive systems to human tooth enamel

Paradella

Fava

2007

Braz. oral res.

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“…Some researches have supported the manufacturers' suggestion that combined use of phosphoric acid etching is necessary when bonding is to be done on a substrate 11,14) . Others, however, have found no differences in bond strength between that achieved with mild self-etching and that with total-etch adhesives when bonding to an unground enamel 6,10,15) . On the other hand, certain procedures such as bonding of orthodontic brackets 1,2,27) and preparation for application of pit or fissure sealants always require bonding to an unground enamel 7) .…”

Section: Introductionmentioning

confidence: 99%

Resin Tag Length of One-Step and Self-Etching Adhesives Bonded to Unground Enamel

Sundfeld

Oliveira

Silva

et al. 2005

Bull. Tokyo Dent. Coll.

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Length of resin tags yielded by utilization of an one-step conventional adhesive system and self-etching adhesive system on unground enamel was observed. In study Groups I and III, the enamel surface was etched for 60 seconds with 35% phosphoric acid gel and adhesive systems PQ1 (Ultradent Products, Inc) and Adper Prompt L Pop (3M/ESPE) were applied. Adper Prompt L Pop (3M/ESPE) was also applied in Group II in accordance with the manufacturer's recommendations. After application of these adhesive systems to dental enamel, specimens were prepared for light microscopy analysis to ascertain degree of penetration ‫.)004ן(‬ The results were submitted to an analysis of variance at the 5% level; whenever there was significance, the Tukey test was applied at the 5% level. It was found that acid etching prior to application of conventional and self-etching adhesive materials provided higher penetration of the adhesive into the unground enamel surface compared to that achieved solely by application of self-etching adhesive.

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“…21 Another factor which could potentially influence the results obtained for microshear bond strength is the operatorÕs skill and familiarity in handling the material and ⁄ or the test equipment. Variations in bond strength results obtained in different laboratories are evident, [22][23][24] and the importance of material handling in the resultant physical properties of a restorative material is generally accepted. 3 The possible influence of operator variability on the outcome of bond strength testing has also been reported.…”

Section: Introductionmentioning

confidence: 99%

Bond strength test: role of operator skill

Adebayo

Burrow

Tyas

2008

Australian Dental Journal

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Background: Test method, substrate material and operator variability are factors known to affect bond strength test outcomes. The aim of this study was to determine if, with increasing experience, individual operator skill in material handling influenced microshear bond strength outcomes. Methods: This retrospective study used data collected from six preliminary tests carried out successively on enamel microshear bond strength for two adhesives: Clearfil SE Bond (Kuraray) and Adper Single Bond 2 (3M ESPE) by one operator. Mean and median microshear bond strength values, standard deviations and coefficients of variation for each adhesive test group were calculated and assessed. Results: A gradual increase in mean microshear bond strengths, a decrease in standard deviations and coefficients of variation over time for both adhesives and a progressively more uniform distribution of microshear bond strength results recorded in individual test sets was observed. The results suggest an improvement in bonding reliability as experience is gained. Conclusions: Operator skill in material handling appears to play a critical role in determining the outcome of bond strength testing. This same skill is probably relevant when using an adhesive for the first time clinically. It is important that clinicians become familiar with new adhesives in order to achieve optimal outcomes.

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Self-Etching Primers – an Alternative to the Conventional Acid Etch Technique?

Abstract: The results of the present investigation indicate that enamel bonding especially with the self-etching primers CLB and SE is as effective as conventional phosphoric acid etching.

Cited by 49 publications

References 17 publications

Bond strength of adhesive systems to human tooth enamel

Bond strength of adhesive systems to human tooth enamel

Resin Tag Length of One-Step and Self-Etching Adhesives Bonded to Unground Enamel

Bond strength test: role of operator skill

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