Surface Roughness of Different Composite Resins After Application of 15% Carbamide Peroxide and Brushing with Toothpaste: An in-vitro study

  • Elmira Jafari Navimipour
  • Amir Ahmad Ajami
  • Siavash SavadiOskoee
  • Mehdi Abed Kahnamoui
  • Mahmoud Bahari Dental and Periodontal Research Center and Department of Operative Dentistry, Dental Faculty, Medical Sciences University of Tabriz, Iran
  • Mohammad Esmaeel Ebrahimi Chaharom
  • Seyedeh Maryam Shojaei
Keywords: Bleaching, Surface Roughness, Composite Resin, Carbamide Peroxide, Tooth Brushing, Toothpast.


Objectives: To evaluate the effect of brushing after application of 15% carbamide peroxide (CP) on the surface roughness of three types of composite resins.

Materials and Methods: Twenty samples measuring 4 mm in height and diameter were prepared from each of three composite resin types including microfilled; Heliomolar HB (MF), nanohybrid; IPS Empress Direct (NH) and microhybrid; Tetric Ceram HB (MH). After polishing, the initial surface roughness was measured with a profilometer. The tray technique was used to apply 15% CP gel for 6 hours. Then, the cleaning step was carried out with an electric toothbrush (Oral-B, Vitality Precision Model) for 3 minutes within a tank containing a freshly mixed toothpaste. These procedures were repeated for 21 days. Then the surface roughness was measured again and compared with the initial values. The mixed ANOVA model was used for the analysis of data (P<0.05).

Results: At baseline roughness was significantly lower in MF compared to the NH and MH (p<0.001). Roughness increased within all study groups over the intervention period; however, it was not statistically significant in the MH (p>0.05). Furthermore, there was a smaller increase of roughness in MF than in NH (p < 0.001) and MH (p = 0.02).

Conclusions: The effect of intervention was more pronounced in NH and MH groups. Surface roughness changes were minor in MF composite resin.

Author Biography

Mahmoud Bahari, Dental and Periodontal Research Center and Department of Operative Dentistry, Dental Faculty, Medical Sciences University of Tabriz, Iran
Assistant Professor


Margeas R. Composite materials: advances lead to ease of use, better performance. Compend Contin Educ Dent. 2013 May;34(5):370-1.

Cramer NB, Stansbury JW, Bowman CN. Recent advances and developments in composite dental restorative materials. J Dent Res. 2011 Apr;90(4):402-16.

Ferracane JL. Resin composite--state of the art. Dent Mater. 2011 Jan;27(1):29-38.

Aka B, Celik EU. Evaluation of the Efficacy and Color Stability of Two Different At-Home Bleaching Systems on Teeth of Different Shades: A Randomized Controlled Clinical Trial. J Esthet Restor Dent. 2017 Mar 21.

Carlos NR, Bridi EC, Amaral F, Franca F, Turssi CP, Basting RT. Efficacy of Home-use Bleaching Agents Delivered in Customized or Prefilled Disposable Trays: A Randomized Clinical Trial. Oper Dent. 2017 Jan/Feb;42(1):30-40.

Bailey SJ, Swift EJ, Jr. Effects of home bleaching products on composite resins. Quintessence Int. 1992 Jul;23(7):489-94.

Garcia-Godoy F, Garcia-Godoy A, Garcia-Godoy F. Effect of bleaching gels on the surface roughness, hardness, and micromorphology of composites. Gen Dent. 2002 May-Jun;50(3):247-50.

Pruthi G, Jain V, Kandpal HC, Mathur VP, Shah N. Effect of bleaching on color change and surface topography of composite restorations. Int J Dent. 2010;2010:695748.

Kimyai S, Bahari M, Naser-Alavi F, Behboodi S. Effect of two different tooth bleaching techniques on microhardness of giomer. J Clin Exp Dent. 2017 Feb;9(2):e249-e53.

Bahari M, Savadi Oskoee S, Mohammadi N, Ebrahimi Chaharom ME, Godrati M, Savadi Oskoee A. Effect of different bleaching strategies on microhardness of a silorane-based composite resin. J Dent Res Dent Clin Dent Prospects. 2016 Fall;10(4):213-19.

Turker SB, Biskin T. Effect of three bleaching agents on the surface properties of three different esthetic restorative materials. J Prosthet Dent. 2003 May;89(5):466-73.

Basting RT, Fernandez YFC, Ambrosano GM, de Campos IT. Effects of a 10% carbamide peroxide bleaching agent on roughness and microhardness of packable composite resins. J Esthet Restor Dent. 2005;17(4):256-62; discussion 63.

Leonard RH, Sharma A, Haywood VB. Use of different concentrations of carbamide peroxide for bleaching teeth: an in vitro study. Quintessence Int. 1998 Aug;29(8):503-7.

Worschech CC, Rodrigues JA, Martins LR, Ambrosano GM. Brushing effect of abrasive dentifrices during at-home bleaching with 10% carbamide peroxide on enamel surface roughness. J Contemp Dent Pract. 2006 Feb 15;7(1):25-34.

Moraes RR, Ribeiro Ddos S, Klumb MM, Brandt WC, Correr-Sobrinho L, Bueno M. In vitro toothbrushing abrasion of dental resin composites: packable, microhybrid, nanohybrid and microfilled materials. Braz Oral Res. 2008 Apr-Jun;22(2):112-8.

Heintze SD, Forjanic M, Ohmiti K, Rousson V. Surface deterioration of dental materials after simulated toothbrushing in relation to brushing time and load. Dent Mater. 2010 Apr;26(4):306-19.

Takahashi R, Jin J, Nikaido T, Tagami J, Hickel R, Kunzelmann KH. Surface characterization of current composites after toothbrush abrasion. Dent Mater J. 2013;32(1):75-82.

da Silva EM, de Sa Rodrigues CU, Dias DA, da Silva S, Amaral CM, Guimaraes JG. Effect of toothbrushing-mouthrinse-cycling on surface roughness and topography of nanofilled, microfilled, and microhybrid resin composites. Oper Dent. 2014 Sep-Oct;39(5):521-9.

da Silva EM, Doria J, da Silva Jde J, Santos GV, Guimaraes JG, Poskus LT. Longitudinal evaluation of simulated toothbrushing on the roughness and optical stability of microfilled, microhybrid and nanofilled resin-based composites. J Dent. 2013 Nov;41(11):1081-90.

Marghalani HY. Effect of filler particles on surface roughness of experimental composite series. J Appl Oral Sci. 2010 Jan-Feb;18(1):59-67.

Heintze S, Forjanic M. Surface roughness of different dental materials before and after simulated toothbrushing in vitro. Oper Dent. 2005;30(5):617.

Wang L, Francisconi LF, Atta MT, Dos Santos JR, Del Padre NC, Gonini A, Jr., et al. Effect of bleaching gels on surface roughness of nanofilled composite resins. Eur J Dent. 2011 Apr;5(2):173-9.

Zavanelli AC, Mazaro VQ, Silva CR, Zavanelli RA, Mancuso DN. Surface roughness analysis of four restorative materials exposed to 10% and 15% carbamide peroxide. Int J Prosthodont. 2011 Mar-Apr;24(2):155-7.

Navimipour EJ, Mohammadi N, Mostafazadeh S, Ghojazadeh M, Oskoee PA. Effect of delaying toothbrushing during bleaching on enamel surface roughness: an in vitro study. Oper Dent. 2013 Mar-Apr;38(2):218-25.

Navimipour EJ, Kimyai S, Nikazar S, Ghojazadeh M. In vitro evaluation of the effect of delaying toothbrushing with toothpaste on enamel microhardness subsequent to bleaching the teeth with 15% carbamide peroxide. Oper Dent. 2012 Jan-Feb;37(1):87-92.

Attin T, Hannig C, Wiegand A, Attin R. Effect of bleaching on restorative materials and restorations--a systematic review. Dent Mater. 2004 Nov;20(9):852-61.

Jones CS, Billington RW, Pearson GJ. The in vivo perception of roughness of restorations. Br Dent J. 2004 Jan 10;196(1):42-5; discussion 31.

Bollen CM, Lambrechts P, Quirynen M. Comparison of surface roughness of oral hard materials to the threshold surface roughness for bacterial plaque retention: a review of the literature. Dent Mater. 1997 Jul;13(4):258-69.

Kim JH, Lee YK, Lim BS, Rhee SH, Yang HC. Effect of tooth-whitening strips and films on changes in color and surface roughness of resin composites. Clin Oral Investig. 2004 Sep;8(3):118-22.

Moraes RR, Marimon JL, Schneider LF, Correr Sobrinho L, Camacho GB, Bueno M. Carbamide peroxide bleaching agents: effects on surface roughness of enamel, composite and porcelain. Clin Oral Investig. 2006 Mar;10(1):23-8.

Langsten RE, Dunn WJ, Hartup GR, Murchison DF. Higher-concentration carbamide peroxide effects on surface roughness of composites. J Esthet Restor Dent. 2002;14(2):92-6.

Schemehorn B, Gonzalez-Cabezas C, Joiner A. A SEM evaluation of a 6% hydrogen peroxide tooth whitening gel on dental materials in vitro. J Dent. 2004;32 Suppl 1:35-9.

Voltarelli FR, Santos-Daroz CB, Alves MC, Cavalcanti AN, Marchi GM. Effect of chemical degradation followed by toothbrushing on the surface roughness of restorative composites. J Appl Oral Sci. 2010 Dec;18(6):585-90.

Barbieri GM, Mota EG, Rodrigues-Junior SA, Burnett LH, Jr. Effect of whitening dentifrices on the surface roughness of commercial composites. J Esthet Restor Dent. 2011 Oct;23(5):338-45.

Ryba TM, Dunn WJ, Murchison DF. Surface roughness of various packable composites. Oper Dent. 2002 May-Jun;27(3):243-7.

How to Cite
Jafari Navimipour E, Ajami AA, SavadiOskoee S, Abed Kahnamoui M, Bahari M, Ebrahimi Chaharom ME, Shojaei SM. Surface Roughness of Different Composite Resins After Application of 15% Carbamide Peroxide and Brushing with Toothpaste: An in-vitro study. J Dent (Tehran).
Original Article