The effects of light curing units and environmental temperatures on CC conversion of commercial and experimental bonding agents
| Autor: | Vahid Rakhshan, Malihe Ghadiri, Mohmmad Erfan, Salmeh Kalbasi, Tahereh Sadat Jafarzadeh-Kashi |
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| Rok vydání: | 2014 |
| Předmět: |
Pathology
medicine.medical_specialty Bonding agent Light-curing units Dental materials Light-curing of dental adhesives Chemistry Dentistry(all) lcsh:R Temperature Analytical chemistry lcsh:Medicine Polymerization lcsh:RK1-715 Light curing Differential scanning calorimetry Extent of polymerization lcsh:Dentistry medicine Original Article General Dentistry |
| Zdroj: | Saudi Dental Journal, Vol 26, Iss 4, Pp 166-170 (2014) |
| ISSN: | 1013-9052 |
| DOI: | 10.1016/j.sdentj.2014.05.006 |
| Popis: | Background and purpose: Polymerization of bonding agents (BA) is a critical factor in determining the success of bonded restorations. We aimed to assess the effects of two light curing units and two temperatures on the extent of polymerization (EP) of a commercial BA and an experimental BA. Methods: Forty BA specimens were randomly divided into 8 subgroups of n = 5 to compare the polymerization of two BAs (experimental/Scotchbond) based on the variables: temperature (23/37 °C) and light-curing unit (quartz-tungsten-halogen/light-emitting diode). The EP (%) was measured using differential scanning calorimetry, and analyzed using the t-test, two- and three-way analyses of variance (ANOVA), and the Bonferroni test (α = 0.05). Results: There were significant differences between the EP results between the two BAs (P = 0.012) and due to the different temperatures (P = 0.001), but not between the different light-curing units (P = 0.548). The interaction between BA and temperature was significant (P |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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