20Feb 2020

COMPARATIVE EVALUATION OF SURFACE DETAIL REPRODUCTION AND EFFECT OF DISINFECTANT AND LONG-TERM STORAGE ON DIMENSIONAL STABILITY OF VINYLPOLYETHERSILICONE WITH POLYVINYLSILOXANE AND POLYETHER IMPRESSION MATERIALS- IN-VITRO STUDY

  • Postgraduate Student, Department of Prosthodontics, Coorg. Institute of Dental Sciences, Karnataka, India.
  • Professor, Department of Prosthodontics, Crown and Bridge, Coorg. Institute of Dental Sciences, Karnataka, India.
  • Senior Lecturer, Department of Prosthodontics, Coorg. Institute of Dental Sciences, Karnataka, India.
  • Professor & HOD, Department of Prosthodontics, Coorg. institute of Dental Sciences, Karnataka, India.
  • Reader, Department of Prosthodontics, Coorg. Institute of Dental Sciences, Karnataka, India.
  • Private Practitioner, Kerala, India.
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Objectives: To compare and evaluate the surface detail reproduction and effect of disinfectant and long-term storage for 2 weeks on the dimensional stability of hybrid material Vinyl polyether silicone (VPES) with its parent Polyvinyl siloxane (PVS) and Polyether (PE) impression materials. Methods: All the samples were divided into three groups: Group A- VPES-D, VPES-N; Group B- PVS-D, PVS-N; Group C- PE-D, PE-N. 40 impressions of each material were made according to ADA/ANSI speci?cation no.19 and twenty impressions of each material were disinfected using 2.45% glutaraldehyde solution. Surface quality measurements were made soon after disinfection using stereo-microscope. Dimensional stability measurements were made using measuring microscope immediately after disinfection and were repeated on the same samples after 7 and 14 days of storage. Data were analysed using chi-square test, One-way Anova test followed by Post hoc Tukey?s test. Results: The non-disinfected groups showed greater mean dimensional change values compared to disinfected groups. VPES-D showed the least dimensional changes and the dimensional stability of all the materials were within 0.5% range after prolonged storage for 14 days except for the PE-N which showed greater dimensional change percentage on 14th day of storage.VPES-D and PE-D produced better impressions with surface quality score 1 compared to PVS-D. Also, 18 samples of VPES-N and PE-N scored 1 and only 17 samples of PVS-N scored 1. Conclusion: The newer material VPES was observed to be both dimensionally stable and capable of producing good surface detail reproduction.

  1. Levartovsky S, Zalis M, Pilo R, Harel N, Ganor Y, Brosh T. The effect of one-step vs. two-step impression techniques on long-term accuracy and dimensional stability when the finish line is within the gingival sulcular area. J Prosthodont. 2014;23(2):124-33.
  2. German MJ, Carrick TE, McCabe JF. Surface detail reproduction of elastomeric impression materials related to rheological properties. Dent Mater. 2008;24(7):951-6.
  3. Stober T, Johnson GH, Schmitter M. Accuracy of the newly formulated vinyl siloxanether elastomeric impression material. J Prosthet Dent. 2010; 103(4):228-39.
  4. Petrie CS, Walker MP, O?mahony AM, Spencer P. Dimensional accuracy and surface detail reproduction of two hydrophilic vinyl polysiloxane impression materials tested under dry, moist, and wet conditions. J Prosthet Dent. 2003;90:365-72.
  5. Nassar U, Oko A, Adeeb S, El-Rich M, Flores-Mir C. An in vitro study on the dimensional stability of a vinyl polyether silicone impression material over a prolonged storage period. J Prosthet Dent. 2013;109:172-8.
  6. Nassar U, Chow AK. Surface detail reproduction and effect of disinfectant and long-term storage on the dimensional stability of a novel vinyl polyether silicone impression material. J Prosthodont. 2014;24:494-8.
  7. Sheta MS, El-Shorbagy ZA, Abdel Karim UM, Abd-Alla S. Laboratory comparative study of wettability, dimensional changes, flexibility and tear resistance of two recent elastomeric impression materials. Tanta Dent J. 2017;14(2):89-95.
  8. Usama Nassar, Carlos Flores-Mir, GiseonHeo, YsidoraTorrealba. The effect of prolonged storage and disinfection on the dimensional stability of 5 vinyl polyether silicone impression materials. J AdvProsthodont. 2017;9:182-7.
  9. Council on dental materials, instruments and equipment?s, Council on dental therapeutics. Infection control recommendations for the dental office and the dental laboratory. J Am Dent Assoc. 1988 Feb;116(2):241-8.
  10. Walker MP Rondeau M, Petrie C, Tasca A, Williams K. Surface quality and long-term dimensional stability of current elastomeric impression materials after disinfection. J Prosthodont. 2007;16:343-51
  11. American National Standards Institute, American Dental Association Council of Scientific Affairs: American Dental Association Specification No. 19. Dental elastomeric impression materials. 2004. J Am Dent Assoc. 1977;94:733-74.
  12. C P. Owen. An investigation into the compatibility of some irreversible hydrocolloid impression materials and dental gypsum products Part II. A refined discriminatory procedure. J Oral Rehabil. 1986;13(2):147-62
  13. Rabeeba PK, Kataraki B, Bhavana BL, Rupesh PL, Basavaraj SS, Zainab N. Clinical Comparison of Quality of Vinyl Polyether Silicone Impressions with Polyvinyl Siloxane Impressions Using One-Step Impression Technique. Int. J. Curr. Adv. Res.2019;08(08):19691-6.
  14. Adabo GL, Zanarotti E, Fonseca RG, Cruz CA. Effect of disinfectant agents on dimensional stability of elastomeric impression materials. J Prosthet Dent. 1999;81:621-4.
  15. Walker MP, Petrie CS, Haj-Ali R, Spencer P, Dumas C, Williams K. Moisture effect on polyether and polyvinylsiloxane dimensional accuracy and detail reproduction. J Prosthodont.2005;14:158-163.
  16. Aalaei S, Rezaei AA, Mansoorali MR, Gholami F. Dimensional Stability of Two Polyvinyl Siloxane Impression Materials in Different Time Intervals. J.Dent.Biomat.2015;2(4):155-61.
  17. Thomas W, Kumar P, Mathew S, Sarathchandran S, Jayanthi P. Effect of storage time and temperature change on the dimensional stability of polyvinyl siloxane and polyether impression materials: An in vitro study. J NTR Univ Health. 2016;5(3):204-9.
  18. Thongthammachat S, Moore BK, Barco MT 2nd, Hovijitra S, Brown DT, Andres CJ. Dimensional accuracy of dental casts: influence of tray material, impression material, and time. J Prosthodont. 2002;11:98-108.
  19. Thouati A, Deveaux E, Iost A, Behin P. Dimensional stability of seven elastomeric impression materials immersed in disinfectants. J Prosthet Dent. 1996 Jul;76(1):8-14.
  20. Davis BA, Powers JM. Effect of immersion disinfection on properties of impression materials. J Prosthodont. 1994;3:31-34.
  21. Chen SY, Liang WM, Chen FN. Factors affecting the accuracy of elastomeric impression materials. J Dent 2004;32:603-9.
  22. Wadhwani CP, Johnson GH, Lepe X, Raigrodski AJ. Accuracy of newly formulated fast-setting elastomeric impression materials. J Prosthet Dent.2005;93:530-9.
  23. Lepe X, Johnson GH, Berg JC, Aw TC, Stroh GS. Wettability, imbibitions, and mass change of disinfected low-viscosity impression materials. J Prosthet Dent. 2002;88:268-76.
  24. Lepe X, Johnson GH. Accuracy of polyether and addition silicone after long-term immersion disinfection. J Prosthet Dent. 1997 Sep;78(3):245-9.
  25. Lacy AM, Fukui H, Bellman T, Jendresen MD. Time dependent accuracy of elastomer impression materials. Part II: Polyether, polysulfides, and polyvinylsiloxane. J Prosthet Dent. 1981;45(3):329-33.
  26. Sheta MS, El-Shorbagy ZA, Abdel Karim UM, Abd-Alla S. Laboratory comparative study of wettability, dimensional changes, flexibility and tear resistance of two recent elastomeric impression materials. Tanta Dent J. 2017;14(2):89-95.
  27. Johnson GH, Chellis KD, Gordon GE, Lepe X. Dimensional stability and detail reproduction of irreversible hydrocolloid and elastomeric impressions disinfected by immersion. J Prosthet Dent. 1998 Apr;79(4):446-53.
  28. Pratten DH, Covey DA, Sheats RD. Effect of disinfectant solutions on the wettability of elastomeric impression materials. J Prosthet Dent. 1990 Feb;63(2):223-7.
  29. Pratten DH, Craig RG. Wettability of a hydrophilic addition silicone impression material. J Prosthet Dent. 1989 Feb;61(2):197-202.

[P.K. Rabeeba, Arundati N. Raj, Junu Henry, Basavaraj S. Salagundi, Vachan Poonacha, Mallikarjuna D.M. and Noufal Zainab (2020); COMPARATIVE EVALUATION OF SURFACE DETAIL REPRODUCTION AND EFFECT OF DISINFECTANT AND LONG-TERM STORAGE ON DIMENSIONAL STABILITY OF VINYLPOLYETHERSILICONE WITH POLYVINYLSILOXANE AND POLYETHER IMPRESSION MATERIALS- IN-VITRO STUDY Int. J. of Adv. Res. 8 (Feb). 845-857] (ISSN 2320-5407). www.journalijar.com

Dr.PK RABEEBA
POSTGRADUATE

DOI:

Article DOI: 10.21474/IJAR01/10517      
DOI URL: https://dx.doi.org/10.21474/IJAR01/10517

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