Knoop Hardness Of Composites Cured With Halogen And Led Lightcuring Units In Class I Restorations
Knoop Hardness Of Composites Cured With Halogen And Led Lightcuring Units In Class I Restorations
| dc.creator | Maria Cecília C. Giorgi | |
| dc.creator | Maria Cecília C. Giorgi | |
| dc.creator | Luís Alexandre Maffei Sartini Paulillo | |
| dc.date | 2009 | |
| dc.date | 2017-09-12T14:31:18Z | |
| dc.date | 2017-09-12T14:31:18Z | |
| dc.date.accessioned | 2018-03-29T05:31:41Z | |
| dc.date.available | 2018-03-29T05:31:41Z | |
| dc.identifier | Brazilian Journal of Oral Sciences, v. 8, n. 1, p. 30-33 | |
| dc.identifier | 1677-3225 | |
| dc.identifier | 10.20396/bjos.v8i1.8642325 | |
| dc.identifier | https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8642325 | |
| dc.identifier | http://repositorio.unicamp.br/jspui/handle/REPOSIP/325116 | |
| dc.identifier | 8642325 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1359346 | |
| dc.description | Aim: To evaluate the effect of light-curing units (LCUs) on the microhardness of class I composite restorations at different depths. Methods: Two light emitting diodes (LED) (Freelight 2, Radii) and one halogen (Optilux 501) LCUs were evaluated. Thirty class I cavities prepared in human third molars were restored with a microhybrid (Charisma) and a microfilled (Renamel) resin composite. After seven days of water storage, the teeth were decoronated and the crowns were bisected mesiodistally and tested for microhardness under a 25 g load for 20 seconds. Fifteen indentations were performed at three depths for each half-crown. Results: Charisma presented significantly higher Knoop hardness number (KHN) values than Renamel. At the superficial depth, there were no statistically significant differences (p > 0.05) when Charisma was cured with both LED curing units. However, statistically significant difference (p < 0.05) was found when Charisma was light-cured with the halogen LCU. The lowest KHN value was obtained by Renamel light-cured with both LED LCUs, regardless of the composite. Nevertheless, when the microfilled composite was light-cured with the halogen LCU, hardness was significantly higher compared to those cured with LED units at all evaluated depths. Conclusions: The effectiveness of polymerization is related not only to the light-curing source, but also to the type of composite and the curing depth. | |
| dc.description | 8 | |
| dc.description | 1 | |
| dc.description | 30-33 | |
| dc.relation | Brazilian Journal of Oral Sciences | |
| dc.relation | bjos | |
| dc.rights | aberto | |
| dc.source | PPEC | |
| dc.subject | Composite Resins | |
| dc.subject | Hardness | |
| dc.title | Knoop Hardness Of Composites Cured With Halogen And Led Lightcuring Units In Class I Restorations | |
| dc.title | Knoop Hardness Of Composites Cured With Halogen And Led Lightcuring Units In Class I Restorations | |
| dc.type | Artículos de revistas |