The effect of preheating of nano-filler composite resins on their degree of conversion and microfiltration in dental fillings
| Primer Autor |
Catalan, Alfonso
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| Co-autores |
Martinez, A.
Munoz, C.
Medina, C.
Marzialetti, T.
Montano, M.
Jaramillo, A. F.
Melendrez, M. F.
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| Título |
The effect of preheating of nano-filler composite resins on their degree of conversion and microfiltration in dental fillings
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| Editorial |
SPRINGER
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| Revista |
POLYMER BULLETIN
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| Lenguaje |
en
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| Resumen |
The study assessed microhardness, microleakage of Class I, and the degree of conversion of composite resins preheated at 55 degrees C. This in vitro study evaluated two nanofilled composite resins (NCR), Filtek (TM) P60 and Filtek (TM) Z350 XT, used in the restorations. The degree of conversion (DC) was determined by Raman spectroscopy, the study compared the vibrational bands of the residual unpolymerized methacrylate C=C stretching band at 1640 cm(-1) to the aromatic C-C stretching band at 1610 cm(-1), used as an internal standard. Microleakage tests considered standard Class 1 cavities prepared on human premolars randomly divided. Preheating Filtek (TM) P60 and Filtek (TM) Z350 XT increased significantly VMH values (p = 0.0001). The highest microleakage occurred in preheated Filtek (TM) Z350 XT, while the lowest was in unheated Filtek (TM) P60. Unheated Filtek (TM) Z350 XT showed a significant increase of microleakage than unheated Filtek (TM) P60. (p = 0.024). Preheating of composite resins improved mechanical properties increasing DC and VMH. However, it also increases microleakage promoting bacterial penetration, secondary caries, marginal discoloration and hypersensitivity.
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| Tipo de Recurso |
artículo original
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| Description |
The authors would like to thank to the laboratory of nanospectroscopy (LABNANOSPECT) (UdeC). National Agency for Research and Development of Chile (ANID) by project: FONDEQUIP Project N degrees EQM150139, VRID-UdeC Project 216.098.004-1.0. The authors thank Joanna Tereszczuk and German Osorio of the Center for Advanced Microscopy of the University of Concepcion for their technical support and CMA Bio-Bio, Project ECM-12. MFM would like to thank Valentina Lamilla for her enormous support. All the authors thank Professor Alfonso Catalan for all his contribution to science throughout his life. Although he is no longer with us, his teachings will remain and transcend from generation to generation. Forever Dr. A. Catalan (R.I.P).
Los autores agradecen al laboratorio de nanoespectroscopia (LABNANOSPECT) (UdeC). Agencia Nacional de Investigación y Desarrollo de Chile (ANID) por proyecto: Proyecto FONDEQUIP N grados EQM150139, Proyecto VRID-UdeC 216.098.004-1.0. Los autores agradecen a Joanna Tereszczuk y German Osorio del Centro de Microscopía Avanzada de la Universidad de Concepción por su apoyo técnico y a CMA Bio-Bio, Proyecto ECM-12. MFM quisiera agradecer a Valentina Lamilla por su enorme apoyo. Todos los autores agradecen al profesor Alfonso Catalán toda su aportación a la ciencia a lo largo de su vida. Aunque ya no esté con nosotros, sus enseñanzas permanecerán y trascenderán de generación en generación. Por siempre Dr. A. Catalán (Q.E.P.D.).
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| doi |
10.1007/s00289-021-03880-x
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| Formato Recurso |
PDF
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| Palabras Claves |
Dental material
Composite resins
Preheating
Raman spectroscopy
Degree of conversion
Vickers microhardness
Microleakage
Confocal laser microscopy
MONOMER CONVERSION
DISTILLED WATER
SHRINKAGE
HARDNESS
CURE
RAMAN
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| Ubicación del archivo | |
| Categoría OCDE |
Ciencia de los polímeros
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| Materias |
Material dental
Resinas compuestas
Precalentamiento
Espectroscopia Raman
Grado de conversión
Microdureza Vickers
Microfiltración
Microscopía láser confocal
CONVERSIÓN DE MONÓMERO
AGUA DESTILADA
ENCOGIMIENTO
DUREZA
CURADO
RAMAN
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| Título de la cita (Recomendado-único) |
The effect of preheating of nano-filler composite resins on their degree of conversion and microfiltration in dental fillings
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| Página de inicio (Recomendado-único) |
10707
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| Página final (Recomendado-único) |
10722
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| Identificador del recurso (Mandatado-único) |
artículo original
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| Versión del recurso (Recomendado-único) |
version publicada
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| Condición de la licencia (Recomendado-repetible) |
0
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| Derechos de acceso |
restringido
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| Access Rights |
restringido
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| Referencia del Financiador (Mandatado si es aplicable-repetible) |
ANID-FONDEQUIP EQM150139
UdeC 216.098.004-1.0.
ANID FONDEQUIP EQM150139
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| Id de Web of Science |
WOS:000740420500001
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cienciaabierta.ufro.cl
ciencia.abierta@ufrontera.cl