Color Changes of Polyamid and Polymetyhl Methacrylate Denture Base Materials


Aim: Both conventional and flexible resins may show color alteration due to intrinsic and extrinsic factors. The aim of this study was to evaluate the color changes of the polyamid and heat polymerized acrylic denture base materials in storage of different staining solutions. Methods: Two denture base materials were used in this study. The speciemens were stored in two staining solutions (tea, coffee), distilled water and denture cleaner. For each group, 14 speciemens (25 × 15 × 2.5 mm) were prepared. The color of speciemens was measured using a colorimeter according to the CIE L*a*b* color scale. The color changes of speciemens were evaluated before and after 7 and 30 days. All data recorded were taken by the same investigator to minimize inconstancy of technique. The data were analyzed statistically by repeated measures analysis of variance and Tukey honestly significant difference multiple comparison tests. It was found no statistically significant difference between solutions (P > 0.05). Results: Polyamid denture base resin displayed the greatest colour change when compared to polymetyhl methacrylate denture base resin (P < 0.001). Polyamid material indicated the highest value (ΔE: 7.28) in coffee solution for 7 days. Significance: The colour stability of polymetyhl methacrylate denture base resin is greater than polyamid denture base resin.

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Sagsoz, N. , Yanıkoglu, N. , Ulu, H. and Bayındır, F. (2014) Color Changes of Polyamid and Polymetyhl Methacrylate Denture Base Materials. Open Journal of Stomatology, 4, 489-496. doi: 10.4236/ojst.2014.410066.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Takabayashi, Y. (2010) Characteristic of Denture Thermoplastic Resins for Non-Metal Clasp Dentures. Dental Material Journal, 29, 352-361.
[2] Rickman, L.J., Padipatvuthikul, P. and Satterthwaite, J.D. (2012) Contemporary Denture Base Resins: Part 2. Dental Update, 39, 176-178, 180-182, 184.
[3] Yunus, N., Rashid, A.A., Azmi, L.L. and Abu-Hassan, M.I. (2005) Some Flexural Properties of a Nylon Denture Base Polymer. Journal of Oral Rehabilitation, 32, 65-71.
[4] Kuwahara, K., Nagahama, F., Kitahara, K., Wada, M., Makimura, M., Kimura, K., Sakamaki, H., Indou, J., Ogura, K. and Kobayashi, K. (2004) A Case of Using Non-Metal Clasp Partial Denture for the Patient with the Metal Allergy. Nihon University Journal of oral Science, 30, 134-139.
[5] Ideiaslab—Prótese Flexível PPFlex. [Internet]. Rio de Janeiro [cited 2009 Apr 15].
[6] Valplast International Corporation. [Internet]. [cited 2009 Apr 15].
[7] John, J., Gangadhar, S.A. and Shah, I. (2001) Flexural Strength of Heat-Polymerized Polymethyl Methacrylate Denture Resin Reinforced with Glass, Aramid, or Nylon Fibers. Journal of Prosthetic Dentistry, 86, 424-427.
[8] Purnaveja, S., Fletcher, A.M., Ritchie, G.M., Amin, W.M., Moradians, S. and Dodd, A.W. (1982) Colour Stability of Two Self Curing Denture Base Materials. Biomaterials, 3, 249-250.
[9] May, K.B., Shotwell, J.R., Koran, A. and Wang, R.F. (1996) Color Stability: Denture Base Resins Processed with the Microwave Method. Journal of Prosthetic Dentistry, 76, 581-589.
[10] Scotti, R., Mascellani, S.C. and Forniti, F. (1997) The in Vitro Color Stability of Acrylic Resins for Provisional Restorations. The International Journal of Prosthodontics, 10, 164-168.
[11] Jagger, D.C., Al-Akhazam, L., Harrison, A. and Rees, J.S. (2002) The Effectiveness of Seven Denture Cleansers on Tea Stain Removal from PMMA Acrylic Resin. International Journal of Prosthodontics, 15, 549-552.
[12] Shotwell, J.L., Razzoog, M.E. and Koran, A. (1992) Color Stability of Long-Term Soft Denture Liners. Journal of Prosthetic Dentistry, 68, 836-838.
[13] Rosentritt, M., Esch, J., Behr, M., Leibrock, A. and Handel, G. (1998) In Vivo Color Stability of Resin Composite Veneers and Acrylic Resin Teeth in Removable Partial Dentures. Quintessence International, 29, 517-22.
[14] Berns, R.S. (2000) Billmeyer and Saltzman’s Principles of Color Technology. 3rd Edition, Wiley, New York, 71-74.
[15] Wu, J.C., Latta, G.H., Wicks, R.A., Swords, R.L. and Scarbecz, M. (2003) In Vitro Deformation of Acetyl Resin and Metal Alloy Removable Partial Denture Direct Retainers. Journal of Prosthetic Dentistry, 90, 586-590.
[16] Abu-Bakr, N., Han, L., Okamoto, A. and Iwaku, M. (2000) Color Stability of Compomer after Immersion in Various Media. Journal of Esthetic Dentistry, 12, 258-263.
[17] Wilson, N.H., Burke, F.J. and Mjor, I.A. (1997) Reasons for Placement and Replacement of Restorations of Direct Restorative Materials by a Selected Group of Practitioners in the United Kingdom. Quintessence International, 28, 245-248.
[18] Villalta, P., Lu, H., Okte, Z., Garcia-Godoy, F. and Powers, J.M. (2006) Effects of Staining and Bleaching on Color Change of Dental Composite Resins. Journal of Prosthetic Dentistry, 95, 137-142.
[19] Buyukyilmaz, S. and Ruyter, I.E. (1994) Color Stability of Denture Base Polymers. International Journal of Prosthodontics, 7, 372-382.
[20] Imirzalioglu, P., Karacaer, O., Yilmaz, B. and Ozmen, I. (2010) Color Stability of Denture Acrylic Resins and a Soft Lining Material against Tea, Coffee, and Nicotine. Journal of Prosthodontics, 19, 118-124.
[21] Duymus, Z.Y., Yanikoglu, N. and Arik, M. (2010) Evaluation of Colour Changed of Acrylic Resin Materials in the Different Solutions. Asian Journal of Chemistry, 22, 6669-6676.
[22] Sepúlveda-Navarro, W.F., Arana-Correa, B.E., Borges, C.P.F., Jorge, J.H., Urban, V.M. and Campanha, N.H. (2011) Color Stability of Resins and Nylon as Denture Base Material in Beverages. Journal of Prosthodontics, 20, 632-638.
[23] Aysan, I., Ucar, Y. and üsümez, A. (2011) üc farkli kaide materyalinin farkli solüsyonlardaki renk stabilitesinin karsi-lastirilmasi [A Comparison of the Color Stability of Three Different Base Materials in the Different Solutions]. The Journal of Dental Faculty of Atatürk University, 21, 219-225.
[24] Lai, Y.L., Lui, H.F. and Lee, S.Y. (2003) In Vitro Color Stability, Stain Resistance, and Water Sorption of Four Removable Gingival Flange Materials. Journal of Prosthetic Dentistry, 90, 293-300.
[25] Ueda, K., Takeda, T., Ichiwata, T., Kabayashi, Z., Nakamura, T., Marita, E., Gotoh, H., Umi, T., Satoh, Y. and Ohki, K. (1985) Studies on the Coloration of Denture Base Part I. On the Influence of Surface Roughness and Favorite Taste. The Journal of the Japan Prosthodontic Society, 29, 85-93.
[26] May, K.B., Razzoog, M.E., Koran, A. and Robinson, E. (1992) Denture Base Resins: Comparison Study of Color Stability. Journal of Prosthetic Dentistry, 68, 78-82.
[27] Goiato, M.C., Santos, D.M., Haddad, M.F. and Pesqueira, A.A. (2010) Effect of Accelerated Aging on the Microhardness and Color Stability of Flexible Resins for Dentures. Brazilian Oral Research, 24, 114-119.
[28] Peracini, A., Davi, L.R., Ribeiro, N., de Souza, R.F., da Silva, C.H.L. and Paranhos, H. (2010) Effect of Denture Cleansers on Physical Properties of Heat-Polymerized Acrylic Resin. Journal of Prosthodontic Research, 54, 78-83.
[29] Hong, G., Murata, H., Li, Y., Sadamori, S. and Hamada, T. (2009) Influence of Denture Cleansers on the Color Stability of Three Types of Denture Base Acrylic Resin. Journal of Prosthetic Dentistry, 101, 205-213.
[30] Sato, S., Cavalcante, M.R., Orsi, I.A., Hde, F.P. and Zaniquelli, O. (2005) Assessment of Flexural Strength and Color Alteration of Heat-Polymerized Acrylic Resins after Simulated Use of Denture Cleansers. Brazilian Dental Journal, 16, 124-128.
[31] Bayindir, F., Kürklü, D. and Yanikoglu, N. (2012) The Effect of Staining Solutions on the Color Stability of Provisional Prosthodontic Materials. Journal of Dentistry, 40, 41-46.

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