Bonding of resin composite to carbon dioxide laser-modified human enamel

Walsh, L. J.; Abood, Dan; Brockhurst, P. J.

doi:10.1016/0109-5641(94)90026-4

Cited by 74 publications

(53 citation statements)

References 15 publications

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“…However, generally, more adhesive was left on the enamel surface with laser irradiation. This finding, which was in accordance with that of a previous study, 21 could be considered an advantage or a disadvantage. Less chair time is needed with less adhesive left on enamel after debonding, but it may cause enamel fracture while debonding, especially with ceramic brackets.…”

Section: Discussionsupporting

confidence: 82%

“…Although some researchers have reported that the mean shear bond strength resulting from laser etching is lower than that from acid etching, 11,19,20 others have reported more favorable results with laser irradiation. 12,21,22 In the present study, we found the highest bond strength in the acid-etched group (14.85 MPa Ϯ 4.59 MPa), followed by the 2-W laser-etched group (11.14 MPa Ϯ 4.75 MPa) and the 1-W laser-etched group (9.88 MPa Ϯ 4.43 MPa). These three etching modalities were clinically acceptable.…”

Section: Discussionmentioning

confidence: 62%

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Etching Enamel for Orthodontics with an Erbium, Chromium:Yttrium-Scandium-Gallium-Garnet Laser System

Başaran

Özer

Berk³

et al. 2007

The Angle Orthodontist

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Objective: To test the shear bond strength, surface characteristics, and fracture mode of brackets that are bonded to enamel etched with an erbium, chromium:yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser operated at different power outputs: 0.5 W, 1 W, and 2 W. Materials and Methods: Human premolars that had been extracted for orthodontic purposes were used. Enamel was etched with an Er,Cr:YSGG laser system operated at one of three power outputs or with orthophosphoric acid. Results: The shear bond strength associated with the 0.5-W laser irradiation was significantly less than the strengths obtained with the other irradiations. Both the 1-W and 2-W laser irradiations were capable of etching enamel in the same manner. This finding was confirmed by scanning electron microscopy examination. The evaluation of adhesive-remnant-index scores demonstrated no statistically significant difference in bond failure site among the groups, except for the 0.5-W laser-etched group. Generally, more adhesive was left on the enamel surface with laser irradiation than with acid etching. Conclusion:The mean shear bond strength and enamel surface etching obtained with an Er,Cr: YSGG laser (operated at 1 W or 2 W for 15 seconds) is comparable to that obtained with acid etching.

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Section: Discussionsupporting

confidence: 82%

Section: Discussionmentioning

confidence: 62%

Etching Enamel for Orthodontics with an Erbium, Chromium:Yttrium-Scandium-Gallium-Garnet Laser System

Başaran

Özer

Berk³

et al. 2007

The Angle Orthodontist

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show abstract

“…However, in spite of these favorable structural modifications, similar to those of an acid-etched surface, the bracket tensile bond strength achieved was lower than that for the phosphoric acid-etched case, and this was common for most laser-treated cases. [17][18][19] Unlike acid etching, Er:YAG laser etching is accompanied by a complex thermomechanical process. In addition to the morphological modifications, heat-induced structural or physical property modifications of dental enamel need further investigation to find a way to compensate for the lower bracket bond strength before the Er:YAG laser can be considered an alternative to conventional acid etching.…”

Section: Introductionmentioning

confidence: 99%

Acid Resistance of Erbium-doped Yttrium Aluminum Garnet Laser–Treated and Phosphoric Acid–Etched Enamels

Kim¹,

Kwon

Kim

et al. 2006

The Angle Orthodontist

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Objective:To compare the effects of erbium-doped yttrium aluminum garnet (Er:YAG) laser ablation and of phosphoric acid etching on the in vitro acid resistance of bovine enamel. Materials and Methods: Teeth were polished to make the surface flat. The polished enamel was either etched with 37% phosphoric acid for 30 seconds or ablated with a single 33 J/cm 2 pulse from an Er:YAG laser. The control specimens were free from acid etching and laser ablation. Changes in crystal structure, dissolved mineral (calcium [Ca] and phosphorus [P]) contents, and calcium distribution in the enamel subsurface after a pH-cycling process were evaluated. Results: After laser treatment, poor crystal structures improved without forming any new phases, such as tricalcium phosphates. Among the tested enamels, dissolved mineral contents were significantly different (P Ͻ .05). Er:YAG laser-treated enamels had the lowest mineral dissolution (Ca, 13.78 ppm; P, 6.33 ppm), whereas phosphoric acid-etched enamels had the highest (Ca, 15.90 ppm; P, 7.33 ppm). The reduction rate and reduced depth of calcium content along the subsurface were lowest in Er:YAG laser-treated enamels. Conclusion:The Er:YAG laser-treated enamels are more acid resistant to acid attack than phosphoric acid-etched enamels.

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“…Lasers have been employed for tooth surface modification and improving restoration bonding. [11][12][13][14] Erbium-Doped Yttrium Aluminum Garnet (Er:YAG) laser has the capacity to produce a micro-retentive pattern when applied on tooth surfaces. The effect of Er:YAG laser depends on parameters such as energy output, frequency, pulse mode, and irradiation time.…”

mentioning

confidence: 99%

An In Vitro Comparison of the Bond Strength of Composite to Superficial and Deep Dentin, Treated With Er:YAG Laser Irradiation or Acid-Etching

et al. 2016

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Bonding of resin composite to carbon dioxide laser-modified human enamel

Cited by 74 publications

References 15 publications

Etching Enamel for Orthodontics with an Erbium, Chromium:Yttrium-Scandium-Gallium-Garnet Laser System

Etching Enamel for Orthodontics with an Erbium, Chromium:Yttrium-Scandium-Gallium-Garnet Laser System

Acid Resistance of Erbium-doped Yttrium Aluminum Garnet Laser–Treated and Phosphoric Acid–Etched Enamels

An In Vitro Comparison of the Bond Strength of Composite to Superficial and Deep Dentin, Treated With Er:YAG Laser Irradiation or Acid-Etching

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