The effect of disinfectants on dimensional stability of addition and condensation silicone impressions
Abstract
Background/Aim. Dimensional stability and accuracy of an impression after chemical disinfection by immersion in disinfectants are crucial for the accuracy of final prosthetic restorations. The aim of this study was to assess the deformation of addition and condensation silicone impressions after disinfection in antimicrobial solutions. Methods. A total of 120 impressions were made on the model of the upper arch representing three full metal-ceramic crown preparations. Four impression materials were used: two condensation silicones (Oranwash L – Zhermack and Xantopren L Blue – Heraeus Kulzer) and two addition silicones (Elite H-D + regular body – Zhermack and Flexitime correct flow – Heraeus Kulzer). After removal from the model the impressions were immediately immersed in appropriate disinfectant (glutaraldehyde, benzalkonium chloride – Sterigum and 5.25% NaOCl) for a period of 10 min. The control group consisted of samples that were not treated with disinfectant solution. Consecutive measurements of identical impressions were realized with a Canon G9 (12 megapixels, 2 fps, 6x/24x), and automated with a computer Asus Lamborghini VX-2R Intel C2D 2.4 GHz, by using Remote Capture software package, so that time-depending series of images of the same impression were obtained. Results. The dimensional changes of all the samples were significant both as a function of time and the applied disinfectant. The results show significant differences of the obtained dimensional changes between the group of condensation silicones and the group of addition silicones for the same time, and the same applied disinfectant (p = 0.026, F = 3.95). Conclusion. The greatest dimensional changes of addition and condensation silicone impressions appear in the first hour after their separation from the model.
References
Stamenkovic D, Obradovic-Ðuricic K, Ivanovic V, Vulicevic ZR, Markovic D, Todorovic A, et al. Dental Materials. Belgrade: Uni-versity of Belgrade, School of Dental Medicine; 2009. (Serbian)
Hamalian TA, Nasr E, Chidiac JJ. Impression Materials in Fixed Prosthodontics: Influence of Choice on Clinical Procedure. J Prosthodont 2011; 20(2): 153−60.
Estafanous EW, Palenik CJ, Platt JA. Disinfection of Bacterially Contaminated Hydrophilic PVS Impression Materials. J Pros-thodont 2012; 21(1): 16−21.
Surendra GP, Anjum A, Babu CLS, Shetty S. Evaluation of dimensional stability of autoclavable elastomeric impression material. J Indian Prosthodont Soc 2011; 11(1): 63−6.
Stober T, Johnson GH, Schmitter M. Accuracy of the newly for-mulated vinyl siloxanether elastomeric impression material. J Prosthet Dent 2010; 103(4): 228−39.
Lucas MG, Arioli JN, Nogueira SS, Batista AU, Pereira RD. Effect of Incorporation of Disinfectant Solutions on Setting Time, Linear Dimensional Stability, and Detail Reproduction in Dental Stone Casts. J Prosthodont 2009; 18(6): 521−6.
ADA Council on Scientific Affairs and ADA Council on Dental Prac-tice.Infection control recommendations for the dental office and the dental laboratory. J Am Dent Assoc 1996; 127(5): 672−80.
Kohn WG, Collins AS, Cleveland JL, Harte JA, Eklund KJ, Malvitz DM. Centers for Disease Control and Prevention (CDC). Guidelines for infection control in dental health-care settings--2003. MMWR Recomm Rep 2003; 52(RR−17): 1−61.
Almortadi N, Chadwick RG. Disinfection of dental impressions - compliance to accepted standards. Br Dent J 2010; 209(12): 607−11.
Giammanco GM, Melilli D, Rallo A, Pecorella S, Mammina C, Pizzo G. Resistance to disinfection of a polymicrobial association contaminating the surface of elastomeric dental impressions. New Microbiol 2009; 32(2): 167−72.
Lepe X, Johnson GH. Accuracy of polyether and addition sili-cone after long-term immersion disinfection. J Prosthet Dent 1997; 78(3): 245−9.
Shillingburg H, Hobo S, Whitsett L, Jacobi R, Brachett S. Funda-mental of Fixed Prosthodontics. 3rd ed. Chicago: Quintes-sence Publishing Co Inc; 1997.
ISO 4823: 2000. Dentistry–elastomeric impression materials. International Organization for Standardization. Geneva, Swit-zerland, 2000. Available from: http://www.iso.ch/iso/en/prods-services/ISOstore/store.html. [accessed 2004 June 25].
Corso M, Abanomy A, Di Canzio J, Zurakowski D, Morgano SM. The effect of temperature changes on the dimensional stability of polyvinyl siloxane and polyether impression materials. J Prost Dent 1998; 79(6): 626−31.
Jakšić Z, Vrhovac S, Panić B, Nikolić Z, Jelenković B. Upward pe-netration of grains through a granular medium. Eur Phys J E Soft Matter 2008; 27(4): 345−56.
Todorovic-Markovic B, Markovic Z, Mohai I, Nikolic Z, Farkas Z, Szepvolgyi J, et al. RF thermal plasma processing of fullerenes. J Phys D Appl Phys 2006; 39(2): 320−6.
Szépvölgyi J, Marković Z, Todorović-Marković B, Nikolić Z, Mohai I, Farkas Z, et al. Effects of Precursors and Plasma Parameters on Fullerene Synthesis in RF Thermal Plasma Reactor. Plasma Chem Plasma Proc 2006; 26(6): 597−608.
Pavlović V, Nikolić M, Nikolić Z, Branković G, Živković L, Pavlović V. Microstructural Evolution and Electric Preperties of Me-chanically Activated BaTiO3 Ceramics. J Eur Ceramic Soc 2007; 27(2−3): 575−9.
Nikolic Z. Application of numerical methods in physical cha-racterizations of polycrystal and biological systems [disserta-tion]. Belgrade: University of Belgrade, Faculty of Physics; 2006.(Serbian)
Revised American Dental Association Specification no. 19 for Non-aqueous, Elastomeric Dental Impression Materials. J Am Dent Assoc 1977; 94(4): 733−41.
Melilli D, Rallo A, Cassaro A, Pizzo G. The effect of immersion disinfection procedures on dimensional stability of two elasto-meric impression materials. J Oral Sci 2008; 50(4): 441−6.
Carvalhal C, Mello J, Sobrinho L, Correr A, Sinhoreti M. Dimen-sional change of elastomeric materials after immersion in dis-infectant solutions for different times. J Contemp Dent Pract 2011; 12(4): 252−8.
Saleh Saber F, Abolfazli N, Kohsoltani M. The effect of disinfec-tion by spray atomization on dimensional accuracy of conden-sation silicone impressions. J Dent Res Dent Clin Dent Pros-pects 2010; 4(4): 124−9.
Kronstrom MH, Johnson GH, Hompesch RW. Accuracy of a new ring-opening metathesis elastomeric dental impression material with spray and immersion disinfection. J Prosthet Dent 2010; 103(1): 23−30.
Kumar D, Madihalli A, Reedy K, Rastogi N, Pradeep N. Elastomeric impression materials:a comparison of accuracy of multiple pours. J Contemp Dent Pract 2011; 12(4): 272−8.
Thouati A, Deveaux E, Iost A, Behin P. Dimensional stability of seven elastomeric impression materials immersed in disinfec-tants. J Prosthet Dent 1996; 76(1): 8−14.
Clancy J, Scandrett F, Ettinger R. Long-term dimensional stability of three current elastomers. J Oral Rehabil 1983; 10(4): 325−33.
Quick D, Holtan J, Ross G. Use of scanning laser 3D digitizer to evaluate dimensional accuracy of dental impression materials. J Prosthet Dent 1992; 68(2): 229−35.
DeLong R, Pintado MR, Ko CC, Hodges JS, Douglas WH. Factors influencing optical 3D scanning of vinyl polysiloxane impres-sion materials. J Prosthodont 2001; 10(2): 78−85.
Shah S, Sundaram G, Bartlett D, Sherriff M. The use of a 3D laser scanner using superimpositional software to assess the accuracy of impression techniques. J Dent 2004; 32(8): 653−8.
Martin N, Martin MV, Jedynakiewicz NM. The dimensional stability of dental impression materials following immersion in disinfecting solutions. Dent Mater 2007; 23(6): 760−8.
Adabo GL, Zanarotti E, Fonseca RG, Cruz CA. Effect of disin-fectant agents on dimensional stability of elastomeric impres-sion materials. J Prosthet Dent 1999; 81(5): 621−4.
Matyas J, Dao N, Caputo AA, Lucatorto FM. Effects of disinfec-tants on dimensional accuracy of impression materials. J Prosthet Dent 1990; 64(1): 25−31.
Herrera SP, Merchant VA. Dimensional stability of dental im-pressions after immersion disinfection. J Am Dent Assoc 1986; 113(3): 419−22.
Michalakis K, Bakopoulou A, Hirayama H, Garefis D, Garefi P. Pre- and post-set hydrophilicity of elastomeric impression ma-terials. J Prosthodont 2007; 16(4): 238−48.
Jagger D, Vowles R, McNally L, Davis F, O Sullivan D. The Effect of a Range of Disinfectants on the Dimensional Accuracy and Stability of Some Impression Materials. Eur J Prosthodont Restor Dent 2007; 15(1): 23−8.
Wadhwani CP, Johnson GH, Lepe X, Raigrodski AJ. Accuracy of newly formulated fast-setting elastomeric impression materials. J Prosthet Dent 2005; 93(6): 530−9.
Walker MP, Rondeau M, Petrie C, Tasca A, Williams K. Surface quality and long-term dimensional stability of current elasto-meric ipression materials after disinfection: Basic science re-search. J Prosthodont 2007; 16(5): 343−51.
