Effect of thickness on fluorescence of resin-composites and dental substrates
Objective: This study evaluated the effect of thickness on fluorescence of resin composites and tooth substrates (enamel and dentin). Material and methods: Ninety bovine incisors were used, resulting in 45 dentin and 45 enamel disks (6 mm diameter and 0.5, 1, or 1.5 mm in thickness). Ninety discs of...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual Paulista
2016-09-01
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| Series: | Brazilian Dental Science |
| Online Access: | https://ojs.ict.unesp.br/index.php/cob/article/view/1282 |
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| _version_ | 1849228651325816832 |
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| author | Carla Tavares Luiza Tavares Ayla Correia Eduardo Bresciani Taciana Caneppele |
| author_facet | Carla Tavares Luiza Tavares Ayla Correia Eduardo Bresciani Taciana Caneppele |
| author_sort | Carla Tavares |
| collection | DOAJ |
| description | Objective: This study evaluated the effect of thickness on fluorescence of resin composites and tooth substrates (enamel and dentin). Material and methods: Ninety bovine incisors were used, resulting in 45 dentin and 45 enamel disks (6 mm diameter and 0.5, 1, or 1.5 mm in thickness). Ninety discs of Charisma, Filtek Z350 and IPS Empress Direct (for enamel and dentin) resins at same dimensions were built. Fluorescence measurements were performed using a fluorescence spectrophotometer (RF-5301PC, Shimadzu Corp) with excitation at 365 nm. Data were submitted to 2-way ANOVA and Tukey’s post hoc tests (? = 0.05). Results: The 2- way - ANOVA revealed statistically significant differences for all factors, as well as the interaction between them (p <0.05). Dentin specimens (1.5 mm) showed highest fluorescence (128.33 A.U.), while Filtek Z350 (dentin - 1.0 mm) showed the lowest fluorescence (29.84 A.U.). Thickness influenced fluorescence values of enamel substrate. Conclusion: The thickness influenced fluorescence of enamel and all resin composite assessed showed fluorescence lower than natural dentin.
Keywords
Dental enamel; Dental resins; Dentin; Spectrometry, Fluorescence.
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| format | Article |
| id | doaj-art-5bc328e1819449528fd28f10c0d0b58c |
| institution | Kabale University |
| issn | 2178-6011 |
| language | English |
| publishDate | 2016-09-01 |
| publisher | Universidade Estadual Paulista |
| record_format | Article |
| series | Brazilian Dental Science |
| spelling | doaj-art-5bc328e1819449528fd28f10c0d0b58c2025-08-22T18:12:46ZengUniversidade Estadual PaulistaBrazilian Dental Science2178-60112016-09-0119310.14295/bds.2016.v19i3.1282Effect of thickness on fluorescence of resin-composites and dental substratesCarla Tavares0Luiza Tavares1Ayla Correia2Eduardo Bresciani3Taciana Caneppele4Institute of Science and Technology – UNESP – Univ Estadual Paulista – School of Dentistry – Department of Restorative Dentistry – São José dos Campos – SP – Brazil.Institute of Science and Technology – UNESP – Univ Estadual Paulista – School of Dentistry – Department of Restorative Dentistry – São José dos Campos – SP – Brazil.Institute of Science and Technology – UNESP – Univ Estadual Paulista – School of Dentistry – Department of Restorative Dentistry – São José dos Campos – SP – Brazil.Institute of Science and Technology – UNESP – Univ Estadual Paulista – School of Dentistry – Department of Restorative Dentistry – São José dos Campos – SP – Brazil.Institute of Science and Technology – UNESP – Univ Estadual Paulista – School of Dentistry – Department of Restorative Dentistry – São José dos Campos – SP – Brazil.Objective: This study evaluated the effect of thickness on fluorescence of resin composites and tooth substrates (enamel and dentin). Material and methods: Ninety bovine incisors were used, resulting in 45 dentin and 45 enamel disks (6 mm diameter and 0.5, 1, or 1.5 mm in thickness). Ninety discs of Charisma, Filtek Z350 and IPS Empress Direct (for enamel and dentin) resins at same dimensions were built. Fluorescence measurements were performed using a fluorescence spectrophotometer (RF-5301PC, Shimadzu Corp) with excitation at 365 nm. Data were submitted to 2-way ANOVA and Tukey’s post hoc tests (? = 0.05). Results: The 2- way - ANOVA revealed statistically significant differences for all factors, as well as the interaction between them (p <0.05). Dentin specimens (1.5 mm) showed highest fluorescence (128.33 A.U.), while Filtek Z350 (dentin - 1.0 mm) showed the lowest fluorescence (29.84 A.U.). Thickness influenced fluorescence values of enamel substrate. Conclusion: The thickness influenced fluorescence of enamel and all resin composite assessed showed fluorescence lower than natural dentin. Keywords Dental enamel; Dental resins; Dentin; Spectrometry, Fluorescence. https://ojs.ict.unesp.br/index.php/cob/article/view/1282 |
| spellingShingle | Carla Tavares Luiza Tavares Ayla Correia Eduardo Bresciani Taciana Caneppele Effect of thickness on fluorescence of resin-composites and dental substrates Brazilian Dental Science |
| title | Effect of thickness on fluorescence of resin-composites and dental substrates |
| title_full | Effect of thickness on fluorescence of resin-composites and dental substrates |
| title_fullStr | Effect of thickness on fluorescence of resin-composites and dental substrates |
| title_full_unstemmed | Effect of thickness on fluorescence of resin-composites and dental substrates |
| title_short | Effect of thickness on fluorescence of resin-composites and dental substrates |
| title_sort | effect of thickness on fluorescence of resin composites and dental substrates |
| url | https://ojs.ict.unesp.br/index.php/cob/article/view/1282 |
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