Effect of Q-switched pulses exposure on morphology, hydroxyapatite composition, and microhardness properties of human enamel
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 loca...
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| Format: | Article |
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Laser Institute of America
2011
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| _version_ | 1796960763439480832 |
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| author | Apsari, Retna Bidin, Noriah Aminatun, - Suhariningsih, - Hartati, Sri Yuliati, Anita Yasin, Moh Harun, Sulaiman Wadi |
| author_facet | Apsari, Retna Bidin, Noriah Aminatun, - Suhariningsih, - Hartati, Sri Yuliati, Anita Yasin, Moh Harun, Sulaiman Wadi |
| author_sort | Apsari, Retna |
| collection | UM |
| description | 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. |
| first_indexed | 2024-03-06T05:49:31Z |
| format | Article |
| id | um.eprints-19864 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:49:31Z |
| publishDate | 2011 |
| publisher | Laser Institute of America |
| record_format | dspace |
| spelling | um.eprints-198642019-01-02T02:48:04Z http://eprints.um.edu.my/19864/ Effect of Q-switched pulses exposure on morphology, hydroxyapatite composition, and microhardness properties of human enamel Apsari, Retna Bidin, Noriah Aminatun, - Suhariningsih, - Hartati, Sri Yuliati, Anita Yasin, Moh Harun, Sulaiman Wadi QC Physics TK Electrical engineering. Electronics Nuclear engineering 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. Laser Institute of America 2011 Article PeerReviewed Apsari, Retna and Bidin, Noriah and Aminatun, - and Suhariningsih, - and Hartati, Sri and Yuliati, Anita and Yasin, Moh and Harun, Sulaiman Wadi (2011) Effect of Q-switched pulses exposure on morphology, hydroxyapatite composition, and microhardness properties of human enamel. Journal of Laser Applications, 23 (3). 032006. ISSN 1042-346X, DOI https://doi.org/10.2351/1.3597832 <https://doi.org/10.2351/1.3597832>. https://doi.org/10.2351/1.3597832 doi:10.2351/1.3597832 |
| spellingShingle | QC Physics TK Electrical engineering. Electronics Nuclear engineering Apsari, Retna Bidin, Noriah Aminatun, - Suhariningsih, - Hartati, Sri Yuliati, Anita Yasin, Moh Harun, Sulaiman Wadi Effect of Q-switched pulses exposure on morphology, hydroxyapatite composition, and microhardness properties of human enamel |
| title | Effect of Q-switched pulses exposure on morphology, hydroxyapatite composition, and microhardness properties of human enamel |
| title_full | Effect of Q-switched pulses exposure on morphology, hydroxyapatite composition, and microhardness properties of human enamel |
| title_fullStr | Effect of Q-switched pulses exposure on morphology, hydroxyapatite composition, and microhardness properties of human enamel |
| title_full_unstemmed | Effect of Q-switched pulses exposure on morphology, hydroxyapatite composition, and microhardness properties of human enamel |
| title_short | Effect of Q-switched pulses exposure on morphology, hydroxyapatite composition, and microhardness properties of human enamel |
| title_sort | effect of q switched pulses exposure on morphology hydroxyapatite composition and microhardness properties of human enamel |
| topic | QC Physics TK Electrical engineering. Electronics Nuclear engineering |
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