covid
Buscar en
Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial
Toda la web
Inicio Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial Efeito de Dois Sistemas de Branqueamento na Rugosidade da Superfície do Esmalte
Información de la revista
Vol. 48. Núm. 2.
Páginas 69-77 (abril - junio 2007)
Compartir
Compartir
Descargar PDF
Más opciones de artículo
Vol. 48. Núm. 2.
Páginas 69-77 (abril - junio 2007)
Investigação
Open Access
Efeito de Dois Sistemas de Branqueamento na Rugosidade da Superfície do Esmalte
Visitas
3765
Eunice Virgínia Palmeirão Carrilho*, Anabela Paula**, João Tomaz***, Daniel Gonçalves****, Pedro Antunes*****
* Médica Dentista, Professora Auxiliar de Dentistaria Operatória da Licenciatura em Medicina Dentária da Faculdade de Medicina de Coimbra
** Médica Dentista, Monitora de Dentistaria Operatória da Licenciatura em Medicina Dentária da Faculdade de Medicina de Coimbra
*** Médico Dentista, Monitor Convidado de Dentistaria Operatória da Licenciatura em Medicina Dentária da Faculdade de Medicina de Coimbra
**** Médico Dentista, Monitor Convidado de Endodoncia da Licenciatura em Medicina Dentária da Faculdade de Medicina de Coimbra
***** Engenheiro Mecânico, aluno de Doutoramento da Faculdade de Engenharia Mecânica da Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Este artículo ha recibido

Under a Creative Commons license
Información del artículo
Resumo
Objectivos

avaliar as acções do peróxido de carbamida a10% e do peróxido de hidrogénio a 25% activado pela luz de uma lâmpada LED, na rugosidade da superfície do esmalte e comparar a acção das duas terapêuticas.

Materiais e Métodos

obtiveram-se trinta espécimes após separação das coroas de quinze prémolares divididas no sentido vertical do longo eixo dentário e de vestibular para lingual. Fizeram-se três grupos de acordo com a terapêutica: grupo 1 (sem terapêutica); grupo 2, peróxido de carbamida a 10% (Platinum®, 14 dias); grupo 3, peróxido de hidrogénio a 25% (Zoom! Chairside System®, 60 minutos). Entre tratamentos os espécimes foram imersas em saliva artificial. Antes e 24 horas após os tratamentos os espécimes foram analisadas recorrendo a um teste de rugosidade computorizado.

Resultados

Os resultados foram tratados por comparação dos valores médios e dos desvios padrão, existindo diferenças entre os valores médios das rugosidades das amostras dos grupos sem tratamento e tratados com peróxido de hidrogénio a 25% com luz (parâmetros Ra e Rz) e as do grupo tratado com peróxido de carbamida a 10% (parâmetro Ra, Rz e Rpm).

Conclusões

1 – No grupo 1 não se identifica um aumento dos valores médios da rugosidade.2 – No grupo 2, os valores médios da rugosidade são no geral mais altos para os dentes após o tratamento.3 - No grupo 3, não se identifica um aumento dos valores médios da rugosidade.4 - Outras medições devem ser realizadas, com intervalo de tempo maior, avaliando a possível regressão destes valores.

Palavras-Chave:
Branqueamento
Esmalte
Peróxido de carbamida
Peróxido de hidrogénio
Rugosidade superfícial
Abstract
Aims

to assess the effect of 10% carbamide peroxide and 25% hydrogen peroxide activated by an LED lamp, on the roughness of the enamel surface and to compare the effect of the two treatments.

Materials and Methods

we obtained the thirty samples after the separation of the crowns of fifteen premolars, split vertically on the long dental axis and from the vestibular to the lingual faces. Three groups were established according to the treatment: group 1 (no treatment); group 2, 10% carbamide peroxide (Platinum®, 14 days); group 3, 25% hydrogen peroxide (Zoom! Chairside System®, 60 minutes). Between treatments the samples were immersed in artificial saliva. Before and 24 hours after the treatments, the samples were analyzed using a computerized roughness tester.

Results

The results were assessed by comparison of the mean values and standard deviation. There were differences between the mean values of the roughness of the samples from the groups without treatment and those treated with 25% hydrogen peroxide with light (parameters Ra and Rz), and those from the group treated with 10% carbamide peroxide (parameters Ra, Rz and Rpm).

Conclusions

1 – in group 1 no increase of the mean values of roughness was identified.2 - in group 2 the mean values of roughness are generally higher in teeth after the treatment.3 - in group 3, there was no increase in the mean values of roughness.4 - Further tests need to be carried out with a greater time lapse, in order to assess the regression of these values.

Key-words:
Bleaching
Enamel
Carbamide peroxide
Hydrogen peroxide
Surface roughness
El Texto completo está disponible en PDF
Bibliografia
[1-]
V. Haywood, H. Heymann.
Nightguard vital bleaching.
Quintessence Int, 20 (1989), pp. 173-176
[2-]
K.B. Frazier, V.B. Haywood.
Teaching nightguard bleaching and other tooth-whitening procedures in North American Dental Schools.
Journal of Dental Education, 64 (2000), pp. 357-364
[3-]
L. Greenwall.
Intracoronal bleaching of non-vital teeth.
Bleaching techniques in restorative dentistry – an illustrated guide, pp. 159-172
[4-]
R.A. Feinman, G. Madray, D. Yarborough.
Chemical, optical, and phisiologic mechanism of bleaching products: a review.
[5-]
D. Yarborough.
The safety and efficacy of tooth bleaching: a review of the literature 1988–1990.
Compend Contin Educ Dent, 12 (1990), pp. 191-196
[6-]
L. Greenwall.
The bleaching materials.
Em Bleaching techniques in restorative dentistry – an illustrated guide, pp. 31-60
[7-]
M. Turkun, F. Sevgican, Y. Pehlivan, B.O. Aktener.
Effects of 10% carbamide peroxide on the enamel surface morphology: a scanning electron microscopy study.
J Esthet Restor Dent, 14 (2002), pp. 238-244
[8-]
N. Barghi, T. Berry, C. Hatton.
Evaluating intensity output of curing lights in private dental offices.
JADA, 125 (1994), pp. 992-996
[9-]
D.L. Leonard, D.G. Charlton, H.W. Roberts, M.E. Cohen.
Polymerization efficiency of LED curing lights.
J Esthet Restor Dent, 14 (2002), pp. 286-295
[10-]
P.C. Tsai, I.A. Meyers, L.J. Walsh.
Depth of cure and surface microhardness of composite resin cured with blue LED curing lights.
Dent Mater, 20 (2004), pp. 364-369
[11-]
A. St-Georges.
Fotoactivação. Light-curing.
Clínica, 1 (2005), pp. 169
[12-]
Informações e instrucções fornecidas pelo fabricante do Zoom! Chairside System.(Discus Dental, Curver City, CA, USA).
[13-]
A. Gallagher, B. Maggio, J. Bowman.
Clinical study to compare two in-office (chairside) whitening systems.
J Clin Dent, 13 (2002), pp. 219-224
[14-]
V. Cavalli, C.A.G. Arrais, M. Giannini, G.M.B. Ambrosano.
High-concentrated carbamide peroxide bleaching agents effects on enamel surface.
Journal of Oral Rehabilitation, 31 (2004), pp. 155-159
[15-]
I. Roststein, E. Dankner, A. Goldman, I. Heling, A. Stabholz, M. Zalkind.
Histochemical analysis of dental hard tissues following bleaching.
Journal of Endodontics, 22 (1996), pp. 23-25
[16-]
I. Potocnik, L. Kosec, D. Gaspersic.
effect of 10% carbamide peroxide bleaching gel on microhardness, microstructure, and mineral content.
Journal of Endodontics, 26 (2000), pp. 203-206
[17-]
N. Hosoya, K. Honda, T. Arai.
Changes in enamel surface roughness and adhesion of streptococcus mutans to enamel after vital bleaching.
Journal of Dentistry, 31 (2003), pp. 543-548
[18-]
E.C. Pinheiro Junior, R.A.S. Fidel, A.M. Cruz Filho, R.G. Silva, J.D. Pécora.
In vitro action of various carbamide peroxide gel bleaching agents on the microhardness of human enamel.
Braz Dent J, 7 (1996), pp. 75-79
[19-]
Norma ISO 4287: 1997, Geometrical Product Specifications (GPS) – Surface Texture: Profile method – Terms, Definitions and Surface Texture Parameters, International Standard Organization, Technical Committee TC 123, 1997/Cor1, 1998.
[20-]
N. Horasawa, S. Takahashi, M. Marek.
Galvanic interaction bettween titanium and gallium alloy or dental amalgam.
Dental MAterials, 15 (1999), pp. 318-322
[21-]
M. Spalding, L.A.A. Taveira, G.F. Assis.
Scanning electron microscopy study of dental enamel surface exposed to 35% hydrogen peroxide: alone, with saliva, and with 10% carbamide peroxide.
Esthet Restor Dent, 15 (2003), pp. 154-165
[22-]
M. Sulieman, M. Addy, E. Macdonald, J.S. Rees.
A safety study in vitro for the effects of an in-office bleaching system on the integrity of enamel and dentine.
Journal of Dentistry, 32 (2004), pp. 581-590
[23-]
E.C.N. Teixeira, A.V. Ritter, J.Y. Thompson, R.H. Leonard Jr., E.J. Swift Jr..
Effect of tray-based and trayless tooth whitening systems on microhardness of enamel surface and subsurface.
Am J Dent, 17 (2004), pp. 433-436
[24-]
P.M. Freitas, C.P. Turssi, A.T. Hara, M.C. Serra.
Monitoring of demineralized dentin microhardness throughout and after bleaching.
Am J Dent, 17 (2004), pp. 342-346
[25-]
J.B.D. Featherstone, M.M. O’Really, M. Shariati, S. Brugler.
Enhancement of remineralization in vitro and in vivo.
Factors relating to demineralization and remineralization of teeth, pp. 23-24
[26-]
J.B.D. Featherstone, J.M. ten Cate, M. Shariati, J. Arends.
Comparison of artificial caries-like lesions by quantitative microradiography and microhardness profiles.
Caries Res, 17 (1983), pp. 385-391
[27-]
N.C. Bitter, J.L. Sanders.
The effect of four bleaching agents on enamel surface: a scanning electron microscopic study.
Quintessence Int, 24 (1993), pp. 817-824
[28-]
C.M. Flaitz, M.J. Hicks.
Effects of carbamide peroxide whitening agents on enamel surfaces and caries-like lesion formation: A SEM and polarized light microscopy in vitro study.
J Dent Child, 63 (1996), pp. 249-256
[29-]
K. Titley, C.D. Torneck, D. Smith.
The effect of concentrated hydrogen peroxide solutions on the surface morphology of human tooth enamel.
J End, 14 (1988), pp. 69-74
[30-]
R.S. McGuckin, J.F. Babin, B.J. Meyer.
Alterations in human enamel surface morphology following vital bleaching.
J Prosthet Dent, 68 (1992), pp. 754-760
[31-]
V.B. Haywood, V. Houck, H.O. Heymann.
Nightguard vital bleaching: Effects of varying pH solutions on enamel surface texture and color change.
Quintessence Int, 22 (1991), pp. 775-782
[32-]
V.B. Haywood, T. Leech, H.O. Heymann.
Nightguard vital bleaching: Effects on enamel surface texture and diffusion.
Quintessence Int, 21 (1990), pp. 801-804
[33-]
C.P. Ernest, B.B. Marroquin, B. Willershausen-Zonnchen.
Effects of hydrogen peroxide-containing bleaching agents on the morphology of human enamel.
Quintessence Int, 27 (1996), pp. 53-56
[34-]
U. Oltu, S. Gurgan.
Effects of three concentrations of carbamide peroxide on structure of enamel.
J Oral Rehabil, 27 (2000), pp. 332-340
[35-]
F.K. Çobankara, N. Unlun, H.C. Altinoz, F. Ozer.
Effect of home bleaching agents on the roughness and surface morphology of human enamel and dentin.
International Dental Journal, 54 (2004), pp. 211-218
[36-]
C.C. Worschech, J.A. Rodrigues, L.R.M. Martins, G.M.B. Ambrosano.
In vitro evaluation of human dental enamel surface roughness bleached with 35% carbamide a 35% and submitted to abrasive dentifrice brushing.
Pesqui. Odontol. Bras., 17 (2003), pp. 342-348

(Carrilho EVP, Paula A, Tomaz J, Gonçalves D, Antunes P. Efeito de Dois Sistemas de Branqueamento na Rugosidade da Superfície do Esmalte. Rev Port Estomatol Cir Maxilofac 2007;48:69–77)

Copyright © 2007. Sociedade Portuguesa de Estomatologia e Medicina Dentária
Descargar PDF
Opciones de artículo
es en pt

¿Es usted profesional sanitario apto para prescribir o dispensar medicamentos?

Are you a health professional able to prescribe or dispense drugs?

Você é um profissional de saúde habilitado a prescrever ou dispensar medicamentos