| Full text | |
| Author(s): |
Dias-Moraes, Marcia C.
[1]
;
Lima, Cassio A.
[1]
;
Freitas, Anderson Z.
[1]
;
Aranha, Ana Cecilia C.
[2]
;
Zezell, Denise M.
[1]
Total Authors: 5
|
| Affiliation: | [1] Univ Sao Paulo, Inst Pesquisas Energet & Nucl, BR-05508000 Sao Paulo - Brazil
[2] Univ Sao Paulo, Fac Odontol, BR-05508000 Sao Paulo - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | APPLIED SCIENCES-BASEL; v. 9, n. 7 APR 1 2019. |
| Web of Science Citations: | 0 |
| Abstract | |
The present study evaluated the protective effects that are induced by fluoride and Nd:YAG laser irradiation to control dentine erosion. One hundred and twenty bovine dentine slabs were eroded with citric acid twice a day for a total period of 15 days. At day 10, the samples were randomly assigned into eight groups: C (Control); F (Fluoride); L1 (Nd:YAG laser, 1 W, 100 mJ, 79.5 J cm( -2)); L2 (Nd:YAG laser, 0.7 W, 70 mJ, 55.7 J cm( -2)); L3 (Nd:YAG laser, 0.5 W, 50 mJ, 39.7 J cm( -2)); F + L1; F + L2; and, F + L3. Optical Coherence Tomography images were collected from the surface of the samples in order to monitor the alterations that were induced by erosion and the effectiveness of each treatment using the Optical Attenuation Coefficient (OAC). OAC values that were calculated for samples from groups C, F, L1, L3, FL1, and FL3 indicated no protective effects against the progression of erosive lesions. Samples from L2 and FL2 groups presented OAC values, indicating that laser irradiation under this condition did not induce the formation of craters on dentine tissue and promoted sufficient chemical and morphological changes to avoid the progression of dentine erosion. (AU) | |
| FAPESP's process: | 13/09311-9 - Use of speckle patterns in optical coherence tomography images for characterization of microfluidic circuits and microcirculation in tissue |
| Grantee: | Anderson Zanardi de Freitas |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 05/51689-2 - Optics and Photonics Research Center at UNICAMP |
| Grantee: | Hugo Luis Fragnito |
| Support Opportunities: | Research Grants - Research, Innovation and Dissemination Centers - RIDC |