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Lasers in Dental Science

Erschienen in:

27.08.2021 | Original Article

Effect of femtosecond and ER:YAG laser systems on shear bond strength of enamel surface and morphological changes

verfasst von: Semanur Özüdoğru, Firdevs Kahvecioğlu, Gül Tosun, Yasemin Gündoğdu, Hamdi Şükür Kılıç

Erschienen in: Lasers in Dental Science | Ausgabe 4/2021

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Abstract

Purpose

The present study aimed to investigate the impact of a femtosecond laser and Er:YAG laser as an alternative to orthophosphoric acid etching on the shear bond strength.

Methods

Thirty permanent mandibular teeth were assigned to one of three groups based on the treatment performed on their buccal/lingual surfaces. Group I, 37% orthophosphoric acid etching; Group II, Er:YAG laser; Group III, femtosecond laser. A 3 × 3 mm diameter bonding area was demarcated on the enamel. Fissure sealant material was applied to the test areas and cured for 20 s in all groups. The shear bond strength of all the specimens was determined using an Instron universal testing machine. After testing, the fracture surfaces were analyzed using a stereomicroscope, and the fracture modes of each sample were categorized according to the adhesive remnant index.

Results

The results revealed no significant differences in terms of shear bond strength of the femtosecond laser (7.55 ± 0.6 MPa), Er:YAG laser (7.26 ± 0.6 MPa), and acid etching groups (6.61 ± 0.5 MPa) (p > 0.05).

Conclusion

The present in vitro study showed that the bond strength of the enamel surface following treatment with femtosecond and Er:YAG laser systems alone was sufficient when compared with that after acid etching.

Clinical significance

It is possible to use femtosecond lasers for bonding fissure sealant to enamel surfaces as an alternative to acid etching.

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Titel: Effect of femtosecond and ER:YAG laser systems on shear bond strength of enamel surface and morphological changes
verfasst von: Semanur Özüdoğru
Firdevs Kahvecioğlu
Gül Tosun
Yasemin Gündoğdu
Hamdi Şükür Kılıç
Publikationsdatum: 27.08.2021
Verlag: Springer International Publishing
Erschienen in: Lasers in Dental Science / Ausgabe 4/2021
Elektronische ISSN: 2367-2587
DOI: https://doi.org/10.1007/s41547-021-00134-x

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Effect of femtosecond and ER:YAG laser systems on shear bond strength of enamel surface and morphological changes

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Purpose

Methods

Results

Conclusion

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Abstract

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Conclusion

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