Artículos de revistas
Effect Of 10% Carbamide Peroxide Dental Bleaching On Microhardness Of Filled And Unfilled Sealant Materials
Registro en:
Journal Of Esthetic And Restorative Dentistry. , v. 18, n. 5, p. 273 - 278, 2006.
14964155
10.1111/j.1708-8240.2006.00037.x
2-s2.0-33750391754
Autor
De Alexandre R.S.
Sundfeld R.H.
Briso A.L.F.
Bedran-Russo A.K.B.
Valentino T.A.
Sundefeld M.L.M.M.
Institución
Resumen
Purpose: The purpose of this study was to quantitatively evaluate the effect of 10% carbamide peroxide on the microhardness of pit and fissure sealant materials. Methods: Fluroshield, Vitroseal Alfa, and one unfilled (Clinpro) sealants were placed in Teflon matrices (4 mm in diameter by 2 mm in height) and polymerized for 40 seconds. A total of 20 specimens were prepared for each material, in which half were assigned as the control group (stored in artificial saliva and no bleaching treatment). For the remaining half, Clarigel Gold bleaching agent (10% carbamide peroxide) was placed over the specimen surface for 4 hours/day during 4 weeks. When specimens were not under bleaching treatment, they were kept in artificial saliva. Afterwards, specimens were subjected to Knoop microhardness testing using a 25-g load for 5 seconds. Five measurements were made on the sealants' surfaces and then calculated in Knoop hardness values. The data were statistically analyzed by two-way analysis of variance and Tukey's tests with a 5% confidence level. Results: The results of this in vitro study showed that the application of a carbamide peroxide-based bleaching material significantly affected the microhardness values of filled sealant materials. The bleaching agent did not affect the microhardness of the unfilled sealant. CLINICAL SIGNIFICANCE: The results of this in vitro study suggest that the bleaching agents altered the surface hardness of filled sealant restorative materials. This could possibly lead to increased wear and surface roughness. © 2006, Copyright the authors. 18 5 273 278 Groll, T.P., Sundfeld, R.H., Resin-based composite reinforced sealant (1999) J Dent Child, 66, pp. 233-238 Simonsen, R.L., Retention and effectiveness of a single application of white sealant after 10 years (1987) J Am Dent Assoc, 115, pp. 31-36 Simonsen, R.L., Retention and effectiveness of dental sealant after 15 years (1991) J Am Dent Assoc, 122, pp. 34-42 Sundfeld, R.H., Mauro, S.J., Briso, A.L.F., Mmlm, S., Clinical/photographic evaluation of a single application of two sealants after 11 years (2004) Bull Tokyo Dent Coll, 2, pp. 67-75 Haywood, V.B., Heymann, H.O., Nightguard vital bleaching (1989) Quintessence Int, 20, pp. 173-176 Attin, T., Hanning, C., Wiegand, A., Attin, R., Effect of bleaching on restorative materials and restorations - A systematic review (2004) Dent Mat, 20, pp. 852-861 Rotstein, I., Dankner, E., Goldman, A., Histochemical analysis of dental hard tissues following bleaching (1996) J Endod, 22, pp. 23-25 Rotstein, I., Lehr, Z., Gedalia, I., Effect of bleaching agents on inorganic components of human dentin and cementum (1992) J Endod, 18, pp. 290-293 Swift, E.D., Perdigão, J., Effects of beaching on teeth and restorations (1998) Compend Contin Educ Dent, 19, pp. 815-820 Crim, G.A., Prerestorative bleaching: Effect on microleakage of class V cavities (1992) Quintessence Int, 23, pp. 823-825 Cullen, D.R., Nelson, J.A., Sandrick, J.L., Peroxide bleaches: Effect on tensile strength of composite resins (1993) J Prosthet Dent, 69, pp. 247-249 Campos, I., Briso, A.L., Pimenta, L.A., Ambrosano, G., Effects of bleaching with carbamide peroxide gels on microhardness of restoration materials (2003) J Esthet Restor Dent, 15, pp. 175-182 Robertello, F.J., Meares, W.A., Gunsolley, J.C., Baughan, L.W., Effect of peroxide bleaches on fluoride release of dental materials (1997) Am J Dent, 10, pp. 264-267 Robinson, F.G., Haywood, V.B., Myers, M., Effect of 10 percent carbamide peroxide on color of provisional restoration materials (1997) J Am Dent Assoc, 128, pp. 727-731 Bailey, S.J., Swift Jr., E.J., Effects of home bleaching products on composite resin (1992) Quitessence Int, 23, pp. 489-494 Turker, S.B., Biskin, T., The effect of bleaching agents on the microhardness of dental aesthetic restorative materials (2002) J Oral Rehabil, 29, pp. 657-661 Nathoo, S.A., Chmielewski, M.B., Kirkup, R.E., Effect of Colgate platinum professional toothwhitening system on microhardness of enamel, dentin and composite resins (1994) Compend Contin Educ Dent Suppl, 17, pp. S627-30 Garcia-Godoy, F., Garcia-Godoy, A., Garcia-Godoy, F., Effect of bleaching gels on the surface roughness, hardness, and micromorphology of composites (2002) Gen Dent, 50, pp. 247-250 Türker, S.B., Biskin, T., Effect of three bleaching agents on the surface properties of three different esthetic restorative material (2003) J Prosthet Dent, 89, pp. 466-473 Krasse, B., (1988) Risco de Cárie: Um Guia Prático para Avaliação e Controle. 2nd Ed., , São Paulo (Brazil): Quintessence Editora Ltda Goldstein, R.E., Garber, D.A., (1995) Complete Dental Bleaching, , Chicago (IL): Quintessence Soderholm, K.J., Zigan, M., Ragan, M., Hydrolytic degradation of dental composites (1984) J Dent Res, 63, pp. 1248-1254 Halvorson, R.H., Erickson, R.L., Davidson, C.L., The effect of filler and content on conversion of resin-based composite (2003) Dent Mat, 19, pp. 327-333 Wattanapayungkul, P., Yap, A.U.J., Chooi, K.W., The effect of home bleaching agents on the surface roughness of tooth-colored restoratives with time (2004) Oper Dent, 29, pp. 398-403 Combre, R.L., Douglas, W.H., The future of dental materials (1998) Dent Update, 25, pp. 411-417 Cehereli, Z.C., Yazici, R., Garcia-Godoy, F., Effect of home-use bleaching gels on fluoride releasing restorative materials (2003) Oper Dent, 28, pp. 605-609