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01.05.2013 | Original Article

The effect of Er:YAG laser irradiation on hydroxyapatite-coated implants and fluoride-modified TiO₂-blasted implant surfaces: a microstructural analysis

verfasst von: Seung-Il Shin, Eun-Kwon Lee, Jeong-Hyun Kim, Ji-Hun Lee, Sun-Hee Kim, Young-Hyuk Kwon, Yeek Herr, Jong-Hyuk Chung

Erschienen in: Lasers in Medical Science | Ausgabe 3/2013

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Abstract

The purpose of this study was to evaluate the microscopic changes and surface roughness on hydroxyapatite (HA)-coated implants following exposure to different powers and durations of Er:YAG laser irradiation in order to determine the proper pulse energy level and irradiation time. Ten HA-coated implants and ten fluoride-modified TiO₂ implants were used. The implants were divided into a control (one implant) and test group (nine implants) for each implant type. Implants in the test groups were sub-divided into three groups (three implants per group) based on the applied laser pulse energy and irradiation time. The measurement of surface roughness was performed on all implants in the test groups using a white light interferometer before and after laser irradiation. R _a values were recorded and compared in order to evaluate changes in surface roughness. For HA-coated implants, the R _a values increased in all test groups after laser irradiation. However, mean R _a values in the fluoride-modified TiO₂-blasted implant test group were decreased after irradiation. There was no statistical difference. Scanning electron microscope analysis revealed surface alterations in both the HA-coated and fluoridated TiO₂-blasted implants irradiated for 1.5 min at 100 mJ/pulse, 10 Hz. When the pulse energy and irradiation time increased, greater surface alterations, including surface flattening and microfractures, were observed. In conclusion, the results of the current study suggest that no changes could be observed in both HA-coated implants and fluoride-modified TiO₂-blasted implants after irradiation at an intensity of 100 mJ/pulse, 10 Hz for 1 min performed to achieve surface detoxification.

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Titel: The effect of Er:YAG laser irradiation on hydroxyapatite-coated implants and fluoride-modified TiO2-blasted implant surfaces: a microstructural analysis
verfasst von: Seung-Il Shin
Eun-Kwon Lee
Jeong-Hyun Kim
Ji-Hun Lee
Sun-Hee Kim
Young-Hyuk Kwon
Yeek Herr
Jong-Hyuk Chung
Publikationsdatum: 01.05.2013
Verlag: Springer-Verlag
Erschienen in: Lasers in Medical Science / Ausgabe 3/2013
Print ISSN: 0268-8921
Elektronische ISSN: 1435-604X
DOI: https://doi.org/10.1007/s10103-012-1162-8

Springer Medizin

Abstract

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