Influence of the Nd:YAG Laser Pulse Duration on the Temperature of Primary Enamel
The aim of this study is to evaluate the temperature change on specimens of primary enamel irradiated with different pulse duration of Nd:YAG laser. Fifteen sound primary molars were sectioned mesiodistally, resulting in 30 specimens (3.5 × 3.5 × 2.0 mm). Two small holes were made on the dentin surf...
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Wiley
2015-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2015/396962 |
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| author | R. A. Valério V. S. da Cunha R. Galo F. A. de Lima L. Bachmann S. A. M. Corona M. C. Borsatto |
| author_facet | R. A. Valério V. S. da Cunha R. Galo F. A. de Lima L. Bachmann S. A. M. Corona M. C. Borsatto |
| author_sort | R. A. Valério |
| collection | DOAJ |
| description | The aim of this study is to evaluate the temperature change on specimens of primary enamel irradiated with different pulse duration of Nd:YAG laser. Fifteen sound primary molars were sectioned mesiodistally, resulting in 30 specimens (3.5 × 3.5 × 2.0 mm). Two small holes were made on the dentin surface in which K-type thermocouples were installed to evaluate thermal changes. Specimens were randomly assigned in 3 groups (n=10): A = EL (extra long pulse, 10.000 μs), B = LP (long pulse, 700 μs), and C = SP (short pulse, 350 μs). Nd:YAG laser (λ = 1.064 μm) was applied at contact mode (10 Hz, 0.8 W, 80 mJ) and energy density of 0.637 mJ/mm2. Analysis of variance (ANOVA) was performed for the statistical analysis (P=0.46). Nd:YAG laser pulse duration provided no difference on the temperature changes on primary enamel, in which the following means were observed: A = EL (23.15°C ± 7.75), B = LP (27.33°C ± 11.32), and C = SP (26.91°C ± 12.85). It can be concluded that the duration of the laser pulse Nd:YAG increased the temperature of the primary enamel but was not influenced by different pulse durations used in the irradiation. |
| format | Article |
| id | doaj-art-c26b2e9bd6164ad6823f2b36b987cda5 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-c26b2e9bd6164ad6823f2b36b987cda52025-02-03T07:25:40ZengWileyThe Scientific World Journal2356-61401537-744X2015-01-01201510.1155/2015/396962396962Influence of the Nd:YAG Laser Pulse Duration on the Temperature of Primary EnamelR. A. Valério0V. S. da Cunha1R. Galo2F. A. de Lima3L. Bachmann4S. A. M. Corona5M. C. Borsatto6Clinical Pediatric Dentistry Department, Ribeirão Preto School of Dentistry, São Paulo University, Café Avenue, Monte Alegre, 14040-904 Ribeirão Preto, SP, BrazilClinical Pediatric Dentistry Department, Ribeirão Preto School of Dentistry, São Paulo University, Café Avenue, Monte Alegre, 14040-904 Ribeirão Preto, SP, BrazilClinical Pediatric Dentistry Department, Ribeirão Preto School of Dentistry, São Paulo University, Café Avenue, Monte Alegre, 14040-904 Ribeirão Preto, SP, BrazilPhysics Department, School of Philosophy, Science and Literature, São Paulo University, 3900 Bandeirantes Avenue, 14040-901 Ribeirão Preto, SP, BrazilPhysics Department, School of Philosophy, Science and Literature, São Paulo University, 3900 Bandeirantes Avenue, 14040-901 Ribeirão Preto, SP, BrazilRestorative Dentistry Department, Ribeirão Preto School of Dentistry, São Paulo University, Café Avenue, Monte Alegre, 14040-904 Ribeirão Preto, SP, BrazilClinical Pediatric Dentistry Department, Ribeirão Preto School of Dentistry, São Paulo University, Café Avenue, Monte Alegre, 14040-904 Ribeirão Preto, SP, BrazilThe aim of this study is to evaluate the temperature change on specimens of primary enamel irradiated with different pulse duration of Nd:YAG laser. Fifteen sound primary molars were sectioned mesiodistally, resulting in 30 specimens (3.5 × 3.5 × 2.0 mm). Two small holes were made on the dentin surface in which K-type thermocouples were installed to evaluate thermal changes. Specimens were randomly assigned in 3 groups (n=10): A = EL (extra long pulse, 10.000 μs), B = LP (long pulse, 700 μs), and C = SP (short pulse, 350 μs). Nd:YAG laser (λ = 1.064 μm) was applied at contact mode (10 Hz, 0.8 W, 80 mJ) and energy density of 0.637 mJ/mm2. Analysis of variance (ANOVA) was performed for the statistical analysis (P=0.46). Nd:YAG laser pulse duration provided no difference on the temperature changes on primary enamel, in which the following means were observed: A = EL (23.15°C ± 7.75), B = LP (27.33°C ± 11.32), and C = SP (26.91°C ± 12.85). It can be concluded that the duration of the laser pulse Nd:YAG increased the temperature of the primary enamel but was not influenced by different pulse durations used in the irradiation.http://dx.doi.org/10.1155/2015/396962 |
| spellingShingle | R. A. Valério V. S. da Cunha R. Galo F. A. de Lima L. Bachmann S. A. M. Corona M. C. Borsatto Influence of the Nd:YAG Laser Pulse Duration on the Temperature of Primary Enamel The Scientific World Journal |
| title | Influence of the Nd:YAG Laser Pulse Duration on the Temperature of Primary Enamel |
| title_full | Influence of the Nd:YAG Laser Pulse Duration on the Temperature of Primary Enamel |
| title_fullStr | Influence of the Nd:YAG Laser Pulse Duration on the Temperature of Primary Enamel |
| title_full_unstemmed | Influence of the Nd:YAG Laser Pulse Duration on the Temperature of Primary Enamel |
| title_short | Influence of the Nd:YAG Laser Pulse Duration on the Temperature of Primary Enamel |
| title_sort | influence of the nd yag laser pulse duration on the temperature of primary enamel |
| url | http://dx.doi.org/10.1155/2015/396962 |
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