Revista de Odontologia da UNESP
https://revodontolunesp.com.br/article/5880175d7f8c9d0a098b46bb
Revista de Odontologia da UNESP
Original Article

Adesivos dentinários - correlação entre resistência à tensão adesiva e o grau de penetração dos agentes de união

Dentinal adhesives - correlation between shear bond strength and the penetration degree of the bonding agents

Mello, J.B.; Araújo, M.A.M.; Huhtala, M.F.R.L.; Araújo, R.M.; Machado, M.S.C.

Downloads: 1
Views: 1132

Resumo

O objetivo da presente pesquisa foi avaliar a resistência a tensão dos adesivos dentinários (Bondlite; ARMD, Scotchbond 2, Prisma Bond 2 e Gluma), associados às resinas compostas (Herculite, Adaptic II P, P-50 e Prisma APH) em 140 amostras de dentes humanos integros. Realizamos, também, uma avaliação em microscopia eletrônica de varredura, nas amostras, após a ruptura da resina composta, para verificar o grau de penetração dos adesivos na dentina. Concluímos que a resistência adesiva variou muito entre os materiais estudados, e que os melhores resultados ficaram por conta da associação ARMD e Herculite. Não verificamos correlação entre o grau de penetração do adesivo nos túbulos dentinários e a resistência à tensão adesiva. Notamos, também, que a espessura do smear layer dificulta a difusão e a união dos adesivos à dentina.

Palavras-chave

Adesivos dentinários, resina composta, dentina

Abstract

Thepurpose of this investigation was to determine the shearbond strength of the following dentinal adhesives: Bondlite, ARMD, Scotchbond 2, Prisma Bond 2 and Gluma, in association with the composite resins: Herculite II P, P-50 and Prisma APH, in a 140 human teeth. It was also performed an evaluation of the specimens in the scanning electron microscope, after the fracture of the resin, to identify the adhesives penetration degree into dentin. It was found that the shear bond strength values varied much among the studied systeins; and the best results obtained were when ARMDand Herculite were associated. The present study did not show any correlation between the dentin bonding agent penetration degree into the dentinal tubuli and its shear bond strength. It was noted that the smear layer thickness turned the infiltration and the bonding of the adhesive to the dentin difficult.

Keywords

Adhesive, composite resins, dentin, bonding

References



1. BRANNSTROM, M. Infection benéath composite resin restorations: can it be avoided? Opero Dent., V. 12, p. 158-63, 1987.

2. BUONOCORE, M. G. Asimple method of increasing the adhesion of acrylic filling materials to enamel surfaces. J. Dent. Res., V. 34, p. 849-53, 1955.

3. CHAPPELL, R. P., EICK, L D., MIXSON, L M. et alo Shear bond strength and scanning electron microscopic observation of four dentinal adhesives. Ouintessenee Int., V. 21, p. 303-11,1990.

4. COOLEY, R. L., DODGE, W. W. Bond strength of three dentinal adhesives on recently extracted versus aged teeth. Ouintesseneelnt., V. 20, p. 513-6, 1989.

5. FUKUSHIMA, T., HORIBE, T. A scanning electron microscopic investigation of bonding of methacryloyloxyalkyl hydrogen maleate to etched dento J. Dent. Res., V. 69, p. 46-50, 1990.

6. FUSAYAMA, T. Factors and prevention of pulp irritation by adhesive eomposite resin restorations. Ouintesseneelnt., V. 18, p. 633-41,1987.

7. GWINNETT, A. L, JENDRESEN, M. D. Micromorphologic features of cervical erosion afier acid conditioning and its relation with composite resino J. Dent. Res., V. 57, p. 543-9, 1978.

8. JOHNSON, G. H., POWELL, L. V., GORDON, G. E. Dentin bonding systems: A review of current products and techniques. J. Aro. Dent. Assoe., V. 122, p. 34-41, July 1991. ,

9. JOHNSTON, A. D., ASMUSSEN, E., BOWEN, R. L. Substitutes for N-Phenylglycine in adhesive bonding. J. Dent. Res., V. 68, n. 9, p. 1337-44, 1989.

10. LAMBRECHTS, P., BRAEM, M., VANHERLE, G. Evaluation of clinical perforrnance for posterior composite resins and dentin adhesives. Opero Dent., V. 12, n. 2, p. 53-78, 1987

11. MUNTSGAARD, E. C., ASMUSSEN, E. Bond strength between dentin and restorative resin mediated by rrúxtures ofHEMA and Glutaraldehyde. J. Dent. Res., v. 63, n. 8, p. 1087-9, 1984.

12. PASHLEY, D. H., LIVINGSTON, M. L Effect oí molecular size on permeability coefficients in human dentine. Aleh OIal Biol., v. 23, n. 5, p. 391-5, 1978.

13. POWELL, L. V., GORDN, G. E., JOHNSON, G. H. Sensitivity restored oí class V abrasion/erosin lesions. J. Am. Dent. Assoe., v. 121, n. 6, p. 694-6, 1990.

14. SUZUKI, M., GWINNETT, A. J., JORDAN, R. E. Relationship between eomposite resins anddentin treated with bonding agents. J. Am. Dent. Assoe, v. 118, n. 1, p. 75-77, 1989.

15. TAO, L., PASHLEY, D. H., BOYD, L. Effect oí different typesoí smear layers on dentin and enamel shear bond strengths. Dent. MateI., v. 4, n. 4, p. 208-16, 1988.

16. WANG, T., NAKABAYASHI, N. Effect oí 2 - (Methacryloxy) ethyl phenyl hydrogen phosphate on adhesion to dentin. J. Dent. Res., v. 70, n. 1, p. 59-66, 1991.

17. YU, X. Y., DAVIS, E. L., JOYNT, R. B., etal. Bondstrengthevaluationoía classV eomposite resin restoration. Quintessenee Int., v. 22, p. 391-6, 1991.
5880175d7f8c9d0a098b46bb rou Articles
Links & Downloads

Rev. odontol. UNESP

Share this page
Page Sections