Intrapulpal temperature variation during bleaching with various activation mechanisms
| Autor: | Ângela Regina Kimie Marimoto, Marcia Carneiro Valera Garakis, Silvia Masae de Araújo Michida, Maria Amélia Máximo de Araújo, Sheila Pestana Passos |
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| Přispěvatelé: | Universidade Estadual Paulista (UNESP), Universidade Estadual Paulista (Unesp) |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Time Factors
genetic structures Light Thermometers Analytical chemistry Mineralogy Materials testing Lasers Solid-State law.invention Body Temperature chemistry.chemical_compound law Materials Testing Tooth Bleaching Humans Light activation Hydrogen peroxide General Dentistry Dental Pulp Lighting Maximum temperature Chemistry Temperature Hydrogen Peroxide Oxidants lcsh:RK1-715 Halogen lamp lcsh:Dentistry Original Article Tooth bleaching sense organs Activation method Gels |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP Journal of Applied Oral Science Journal of Applied Oral Science, Volume: 17, Issue: 5, Pages: 436-439, Published: OCT 2009 Web of Science Journal of Applied Oral Science, Vol 17, Iss 5, Pp 436-439 (2009) Universidade Estadual Paulista "Júlio de Mesquita Filho" Journal of Applied Oral Science v.17 n.5 2009 Journal of applied oral science Universidade de São Paulo (USP) instacron:USP |
| Popis: | Made available in DSpace on 2013-08-12T17:58:50Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-09-01 Made available in DSpace on 2013-09-30T18:34:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-09-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T14:04:59Z No. of bitstreams: 0 Made available in DSpace on 2014-05-20T14:04:59Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-09-01 Objectives: The aim of this study was to evaluate the intrapulpal temperature variation after bleaching treatment with 35% hydrogen peroxide using different sources of activation. Material and Methods: Twenty-four human teeth were sectioned in the mesiodistal direction providing 48 specimens, and were divided into 4 groups (n=12): (G1) Control - Bleaching gel without light activation, (G2) Bleaching gel + halogen light, (G3) Bleaching gel + LED, (G4) Bleaching gel + Nd: YAG Laser. The temperatures were recorded using a digital thermometer at 4 time points: before bleaching gel application, 1 min after bleaching gel application, during activation of the bleaching gel, and after the bleaching agent turned from a dark-red into a clear gel. Data were analyzed statistically by the Dunnet's test, ANOVA and Tukey's test (alpha=0.05). Results: The mean intrapulpal temperature values (degrees C) in the groups were: G1: 0.617 +/- 0.41; G2: 1.800 +/- 0.68; G3: 0.975 +/- 0.51; and G4: 4.325 +/- 1.09. The mean maximum temperature variation (MTV) values were: 1.5 degrees C (G1), 2.9 degrees C (G2), 1.7 degrees C (G3) and 6.9 degrees C (G4). When comparing the experimental groups to the control group, G3 was not statistically different from G1 (p>0.05), but G2 and G4 presented significantly higher (p |
| Databáze: | OpenAIRE |
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