Reversal of compromised bonding to oxidized etched dentin (2001)
- Authors:
- Autor USP: CARVALHO, RICARDO MARINS DE - FOB
- Unidade: FOB
- Subjects: SÓDIO; VITAMINA C; LIGAS DE ALTA RESISTÊNCIA
- Language: Inglês
- Abstract: The mechanism responsible for hydrogen-peroxide- or sodium-hypochlorite-induced reductions in dentin bond strength is unknown. This in vitro study tested the hypothesis that these oxidizing agents were responsible by attempting to reverse Vthe effect with sodium ascorbate, a reducing agent. Human dentin was treated with these oxidants before or after being acid-etched and with or without post-treatment with sodium ascorbate. They were bonded with either Single Bond or Excite. Hydrogen peroxide reduced the bond strengths of both adhesives, while sodium hypochlorite produced reduction in adhesion of only Single Bond (p < 0.05). Following treatment with sodium ascorbate, reductions in bond strength were reversed. Transmission and scanning electron microscopy showed partial removal of the demineralized collagen matrix only by sodium hypochlorite. The observed compromised bond strengths cannot be attributed to incomplete deproteinization and may be related to changes in the redox potential of the bonding substrates
- Imprenta:
- Source:
- Título do periódico: Journal of Dental Research
- ISSN: 0022-0345
- Volume/Número/Paginação/Ano: v. 80, n. 10, p. 1919-1924, Oct. 2001
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ABNT
LAI, S. C. N. et al. Reversal of compromised bonding to oxidized etched dentin. Journal of Dental Research, v. 80, n. 10, p. 1919-1924, 2001Tradução . . Acesso em: 19 set. 2024. -
APA
Lai, S. C. N., Mak, Y. F., Cheung, G. S. P., Osorio, R., Toledano, M., Carvalho, R. M. de, et al. (2001). Reversal of compromised bonding to oxidized etched dentin. Journal of Dental Research, 80( 10), 1919-1924. -
NLM
Lai SCN, Mak YF, Cheung GSP, Osorio R, Toledano M, Carvalho RM de, Tay FR, Pashley DH. Reversal of compromised bonding to oxidized etched dentin. Journal of Dental Research. 2001 ; 80( 10): 1919-1924.[citado 2024 set. 19 ] -
Vancouver
Lai SCN, Mak YF, Cheung GSP, Osorio R, Toledano M, Carvalho RM de, Tay FR, Pashley DH. Reversal of compromised bonding to oxidized etched dentin. Journal of Dental Research. 2001 ; 80( 10): 1919-1924.[citado 2024 set. 19 ] - Selantes de fossulas e fissulas
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