Polymerization contraction force of light curing materials (2006)
- Authors:
- USP affiliated authors: MONDELLI, RAFAEL FRANCISCO LIA - FOB ; MONDELLI, JOSE - FOB
- Unidade: FOB
- Subjects: POLIMERIZAÇÃO; MATERIAIS DENTÁRIOS
- Language: Inglês
- Abstract: The composite resin has been very used as restorer material, in anterior even posterior region, due to phyical, mechanical and optical properties.This study aimed to determine the intensity of forces generated during the polymerization contraction of light curing lining materials, a composite resin and association of these materials. Two rectangular steel bases (6 X 2mm) were positioned in an universal testing machine (Emic - DL 500). The materials were inserted between the bases, with volume of 12mm3 and FC 1,5 and, in the association, 6mm3 for lining and 12mm3 for resin (n=10). The tensions generated during the light curing (20s) were registered for 120s. The values were expressed in curves (force X time) and the means were compared by statistical analysis. The calcium hydroxide produced smaller force of contraction (5,5N) than composite resin (7,0N) and glass ionomer cement (10,3N). The resin association with calcium hydroxide (medium=7,0N) didn't demonstrate statistical difference related to resin composite alone. However, glass ionomer cement associate with composite resin provided significant increase of resin's contraction force (9,4N), whereas the association of two increments of composite resin determined the biggest force (11,9N). In conclusion, according the results, resin components included in lining materials can influence the stress generated during the polymerization contraction of composite resin
- Imprenta:
- Publisher place: Piracicaba
- Date published: 2006
- Source:
- Título: Brazilian Journal of Oral Sciences
- ISSN: 1677-3225
- Volume/Número/Paginação/Ano: v. 5, n. 18, p. 1131, July/Sept. 2006
- Conference titles: International Dental Meeting - UNICAMP
-
ABNT
FIGUEIRA, V. F. et al. Polymerization contraction force of light curing materials. Brazilian Journal of Oral Sciences. Piracicaba: Faculdade de Odontologia de Bauru, Universidade de São Paulo. Disponível em: http://www.fop.unicamp.br/brjorals/. Acesso em: 10 fev. 2026. , 2006 -
APA
Figueira, V. F., Valeretto, T. M., Mondelli, R. F. L., Ishikiriama, S. K., & Mondelli, J. (2006). Polymerization contraction force of light curing materials. Brazilian Journal of Oral Sciences. Piracicaba: Faculdade de Odontologia de Bauru, Universidade de São Paulo. Recuperado de http://www.fop.unicamp.br/brjorals/ -
NLM
Figueira VF, Valeretto TM, Mondelli RFL, Ishikiriama SK, Mondelli J. Polymerization contraction force of light curing materials [Internet]. Brazilian Journal of Oral Sciences. 2006 ; 5( 18): 1131.[citado 2026 fev. 10 ] Available from: http://www.fop.unicamp.br/brjorals/ -
Vancouver
Figueira VF, Valeretto TM, Mondelli RFL, Ishikiriama SK, Mondelli J. Polymerization contraction force of light curing materials [Internet]. Brazilian Journal of Oral Sciences. 2006 ; 5( 18): 1131.[citado 2026 fev. 10 ] Available from: http://www.fop.unicamp.br/brjorals/ - Tratamentos conservadores por meio de microabrasão do esmalte
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