Effect of Q -switched pulses exposure on morphology, hydroxyapatite composition, and microhardness properties of human enamel

R. Apsari; Noriah Bidin; Aminatun Suhariningsih; Sri Hartati; Anita Yuliati; M. Yasin; S. W. Harun

doi:10.2351/1.3597832

Effect of Q -switched pulses exposure on morphology, hydroxyapatite composition, and microhardness properties of human enamel

R. Apsari, Noriah Bidin, Aminatun Suhariningsih, Sri Hartati, Anita Yuliati, M. Yasin, S. W. Harun

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Ablation of healthy human enamel is demonstrated using a 8 ns pulses at wavelength of 1064 nm and 10Hz repetition rate from a Q -switched Nd:YAG laser. The ablation result shows that an enhanced structuring quality in comparison with non- Q -switched pulse exposure. The material removal remains localized in the area of the laser spot with no signs of collateral damage and cracks observed. As a comparison, exposure to longer pulses of 120 μs from non- Q -switched Nd:YAG laser increases the composition of hydroxyapatite as well as microhardness property of enamel, which produces a side effect of surface dehydration and crack. This study suggests that the application of Q -switched Nd:YAG laser as contactless drills in dentistry should be regarded as an alternative to the classical mechanical technique to improve the quality of the tooth treatment.

Original language	English
Article number	032006
Journal	Journal of Laser Applications
Volume	23
Issue number	3
DOIs	https://doi.org/10.2351/1.3597832
Publication status	Published - Aug 2011

Keywords

Nd:YAG laser
crystal structure
human enamel
hydroxyapatite
laser ablation
microhardness

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title = "Effect of Q -switched pulses exposure on morphology, hydroxyapatite composition, and microhardness properties of human enamel",

abstract = "Ablation of healthy human enamel is demonstrated using a 8 ns pulses at wavelength of 1064 nm and 10Hz repetition rate from a Q -switched Nd:YAG laser. The ablation result shows that an enhanced structuring quality in comparison with non- Q -switched pulse exposure. The material removal remains localized in the area of the laser spot with no signs of collateral damage and cracks observed. As a comparison, exposure to longer pulses of 120 μs from non- Q -switched Nd:YAG laser increases the composition of hydroxyapatite as well as microhardness property of enamel, which produces a side effect of surface dehydration and crack. This study suggests that the application of Q -switched Nd:YAG laser as contactless drills in dentistry should be regarded as an alternative to the classical mechanical technique to improve the quality of the tooth treatment.",

keywords = "Nd:YAG laser, crystal structure, human enamel, hydroxyapatite, laser ablation, microhardness",

author = "R. Apsari and Noriah Bidin and Aminatun Suhariningsih and Sri Hartati and Anita Yuliati and M. Yasin and Harun, {S. W.}",

note = "Funding Information: The first author would like to express her gratitude to University of Technology Malaysia for the collaboration work. Thanks are also addressed to the Government of Indonesia through the Directorate General of Higher Education (Sandwich Scholarship Programme) for financial support in this research. They also like to acknowledge the assistance received from Ike Ismiawati for her cooperation in the analysis of this work.",

year = "2011",

month = aug,

doi = "10.2351/1.3597832",

language = "English",

volume = "23",

journal = "Journal of Laser Applications",

issn = "1042-346X",

publisher = "American Institute of Physics",

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T1 - Effect of Q -switched pulses exposure on morphology, hydroxyapatite composition, and microhardness properties of human enamel

AU - Apsari, R.

AU - Bidin, Noriah

AU - Suhariningsih, Aminatun

AU - Hartati, Sri

AU - Yuliati, Anita

AU - Yasin, M.

AU - Harun, S. W.

N1 - Funding Information: The first author would like to express her gratitude to University of Technology Malaysia for the collaboration work. Thanks are also addressed to the Government of Indonesia through the Directorate General of Higher Education (Sandwich Scholarship Programme) for financial support in this research. They also like to acknowledge the assistance received from Ike Ismiawati for her cooperation in the analysis of this work.

PY - 2011/8

Y1 - 2011/8

N2 - Ablation of healthy human enamel is demonstrated using a 8 ns pulses at wavelength of 1064 nm and 10Hz repetition rate from a Q -switched Nd:YAG laser. The ablation result shows that an enhanced structuring quality in comparison with non- Q -switched pulse exposure. The material removal remains localized in the area of the laser spot with no signs of collateral damage and cracks observed. As a comparison, exposure to longer pulses of 120 μs from non- Q -switched Nd:YAG laser increases the composition of hydroxyapatite as well as microhardness property of enamel, which produces a side effect of surface dehydration and crack. This study suggests that the application of Q -switched Nd:YAG laser as contactless drills in dentistry should be regarded as an alternative to the classical mechanical technique to improve the quality of the tooth treatment.

AB - Ablation of healthy human enamel is demonstrated using a 8 ns pulses at wavelength of 1064 nm and 10Hz repetition rate from a Q -switched Nd:YAG laser. The ablation result shows that an enhanced structuring quality in comparison with non- Q -switched pulse exposure. The material removal remains localized in the area of the laser spot with no signs of collateral damage and cracks observed. As a comparison, exposure to longer pulses of 120 μs from non- Q -switched Nd:YAG laser increases the composition of hydroxyapatite as well as microhardness property of enamel, which produces a side effect of surface dehydration and crack. This study suggests that the application of Q -switched Nd:YAG laser as contactless drills in dentistry should be regarded as an alternative to the classical mechanical technique to improve the quality of the tooth treatment.

KW - Nd:YAG laser

KW - crystal structure

KW - human enamel

KW - hydroxyapatite

KW - laser ablation

KW - microhardness

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U2 - 10.2351/1.3597832

DO - 10.2351/1.3597832

M3 - Article

AN - SCOPUS:79960510696

SN - 1042-346X

VL - 23

JO - Journal of Laser Applications

JF - Journal of Laser Applications

IS - 3

M1 - 032006

ER -

Effect of Q -switched pulses exposure on morphology, hydroxyapatite composition, and microhardness properties of human enamel

Abstract

Keywords

UN SDGs

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