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Metadados | Descrição | Idioma |
---|---|---|
Autor(es): dc.contributor | IPEN- Nuclear and Energy Research Institute | - |
Autor(es): dc.contributor | Universidade Estadual Paulista (Unesp) | - |
Autor(es): dc.creator | Zezell, Denise M. | - |
Autor(es): dc.creator | Silva, Mateus R. [UNESP] | - |
Autor(es): dc.creator | Castro, Pedro A.A. | - |
Autor(es): dc.creator | Silva, Tânia M. [UNESP] | - |
Autor(es): dc.creator | Goncalves, Sergio E.P. [UNESP] | - |
Data de aceite: dc.date.accessioned | 2022-02-22T00:25:36Z | - |
Data de disponibilização: dc.date.available | 2022-02-22T00:25:36Z | - |
Data de envio: dc.date.issued | 2020-12-11 | - |
Data de envio: dc.date.issued | 2020-12-11 | - |
Data de envio: dc.date.issued | 2019-01-01 | - |
Fonte completa do material: dc.identifier | http://dx.doi.org/10.1117/12.2527213 | - |
Fonte completa do material: dc.identifier | http://hdl.handle.net/11449/198822 | - |
Fonte: dc.identifier.uri | http://educapes.capes.gov.br/handle/11449/198822 | - |
Descrição: dc.description | Nd:YAG-laser associated to a photoabsorber, in the reduction of artificial caries in enamel was evaluated. Eighty bovine specimens with 6mm diameter and 2mm high were obtained and a half of the surface of each was protected as a control. Microdurometer and FTIR were performed initially and 8 groups (n=10) were obtained according to treatments: G1(control): no-treatment; G2(+control): fluorophosphate; G3(Nd:YAG 60mJ/pulse, 10Hz, 48J/cm2, non-contact); G4(photoabsorber + Nd:YAG 60mJ); G5(Nd:YAG 80mJ/pulse, 10Hz, 64J/cm2); G6(photoabsorber + Nd:YAG 80mJ); G7(Nd:YAG 100mJ/pulse, 10Hz, 80J/cm2); G8(photoabsorber + Nd:YAG 100mJ). De-remineralization cycle were performed for induction of artificial caries and to interferometer, microdurometer and FTIR. Microhardness data were submitted to 2-way ANOVA and Tukey/Dunnett tests 5%. Statistically differences were obtained in the photoabsorber-factor individually and in the interaction between laser and photoabsorber. There was a lower percentage of microhardness loss in the groups with photoabsorber; G8 presented microhardness similar to G2. FTIR data were submitted to T-test 5%. Compared with G2, higher concentrations of carbonate were found in G4, G6 and G8; phosphate in G8; lower Amide-I concentration at G8 and higher Carbonate/Phosphate ratio at G4 and G6. The interferometry results were submitted to 3-way ANOVA of repeated measures 5%. There were statistically differences in the photoabsorber-factor individually and in the time-factor. Photoabsorber decreased the demineralization; Nd:YAG-laser without photoabsorber were less effective than fluoride; Nd:YAG-laser 100mJ with photoabsorber was as effective as fluoride and; the Nd:YAG-laser, associated or not to the photoabsorber, was no more effective than fluoride in the reduction of artificial decay. | - |
Descrição: dc.description | IPEN- Nuclear and Energy Research Institute | - |
Descrição: dc.description | São Paulo State University (UNESP) Institute of Science and Technology | - |
Descrição: dc.description | São Paulo State University (UNESP) Institute of Science and Technology | - |
Idioma: dc.language | en | - |
Relação: dc.relation | Optics InfoBase Conference Papers | - |
???dc.source???: dc.source | Scopus | - |
Palavras-chave: dc.subject | Caries | - |
Palavras-chave: dc.subject | Demineralization | - |
Palavras-chave: dc.subject | Enamel | - |
Palavras-chave: dc.subject | Laser | - |
Palavras-chave: dc.subject | Photoabsorber | - |
Título: dc.title | Nd:YAG laser on dental enamel in the reduction of artificial caries demineralization | - |
Aparece nas coleções: | Repositório Institucional - Unesp |
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