The Journal of Contemporary Dental Practice

Register      Login

SEARCH WITHIN CONTENT

FIND ARTICLE

Volume / Issue

Online First

Archive
Related articles

VOLUME 17 , ISSUE 9 ( September, 2016 ) > List of Articles

RESEARCH ARTICLE

Effect of Intermixing Brands on the Dimensional Accuracy of Master Cast using Putty-wash Impression Technique

Mohammed E Sayed, Bandar MA Al-Makramani, Fuad A Al-Sanabani, Mohamed S Mohamed

Citation Information : Sayed ME, Al-Makramani BM, Al-Sanabani FA, Mohamed MS. Effect of Intermixing Brands on the Dimensional Accuracy of Master Cast using Putty-wash Impression Technique. J Contemp Dent Pract 2016; 17 (9):734-739.

DOI: 10.5005/jp-journals-10024-1921

Published Online: 00-09-2016

Copyright Statement:  Copyright © 2016; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim

The aim of this study was to evaluate the effect of intermixing brands of addition silicone impression materials on the dimensional accuracy of stone models using two-step putty-wash technique.

Materials and methods

Two common brands of addition silicone impression material (Express and Aquasil) were used in this study. A total of 40 impressions of a stainless steel model simulating a three-unit bridge were made, 10 impressions for each group. Accuracy was assessed by measuring two dimensions (inter-abutment and intra-abutment) on stone models obtained from impressions of the stainless steel model. Each sample was measured thrice and the mean value was calculated. The data were analyzed using analysis of variance (ANOVA) and Scheffe's post hoc test.

Results

The results indicated that each of the inter-abutment and intra-abutment dimensions of the stone models was significantly higher than those for the stainless steel model (p < 0.001). However, there was no statistically significant difference in each of the inter-abutment and intra-abutment dimensions of the stone models among the four tested groups (p < 0.05).

Conclusion

The results obtained were statistically analyzed and the values of the inter-abutment and intra-abutment dimensions were all within the clinically acceptable range.

Clinical significance

Intermixing brands of additional silicone impression materials evaluated in this study did not affect the dimensional accuracy of obtained stone casts. This will help to minimize the wastage of materials due to lack of either light or putty consistency of the same brand of additional silicone impression material.

How to cite this article

Sayed ME, Al-Makramani BMA, Al-Sanabani FA, Mohamed MS. Effect of Intermixing Brands on the Dimensional Accuracy of Master Cast using Putty-wash Impression Technique. J Contemp Dent Pract 2016;17(9):734-739.


PDF Share
  1. Accuracy of stone casts obtained by different impression materials. Braz Oral Res 2008 Oct-Dec;22(4):293-298.
  2. A comparison of dimensional accuracy of addition silicone of different consistencies with two different spacer designs – in vitro study. J Clin Diagn Res 2014 Jul;8(7):ZC38-ZC41.
  3. Replicating materials – impression and casting. In: Sakaguchi RL, Powers JM, editors. Craig's restorative dental materials. 13th ed. Philadelphia (PA): Elsevier/Mosby; 2012. p. 277-325.
  4. Polyvinyl siloxane impression materials: an update on clinical use. Aust Dent J 1998 Dec;43(6):428-434.
  5. Comparative evaluation of dimensional accuracy of different polyvinyl siloxane puttywash impression techniques-in vitro study. J Int Oral Health 2013 Oct;5(5):85-94.
  6. A clinical evaluation of fixed partial denture impressions. J Prosthet Dent 2005 Aug;94(2):112-117.
  7. Randomized controlled clinical study on the accuracy of two-stage putty-and-wash impression materials. Int J Prosthodont 2009 May-Jun;22(3):296-302.
  8. Factors affecting the accuracy of elastometric impression materials. J Dent 2004 Nov;32(8):603-609.
  9. Polyvinyl siloxane impression materials: a review of properties and techniques. J Prosthet Dent 1992 Nov;68(5):728-732.
  10. Accuracy of three polyvinyl siloxane putty-wash impression techniques. J Prosthet Dent 2000 Feb;83(2):161-165.
  11. Effect of wash bulk on the accuracy of polyvinyl siloxane putty-wash impressions. J Oral Rehabil 2002 Apr;29(4):357-361.
  12. Assessment of preference of mixing techniques and duration of mixing and tray loading for two viscosities of vinyl polysiloxane material. J Prosthet Dent 2007 Jan;97(1):12-17.
  13. Accuracy of one-step versus two-step putty wash addition silicone impression technique. J Prosthet Dent 1992 May;67(5):583-589.
  14. Comparison of the dimensional accuracy of one- and two-step techniques with the use of putty/wash addition silicone impression materials. J Prosthet Dent 1995 Nov;74(5):535-541.
  15. Dimensional accuracy of resultant casts made by a monophase, one-step and two-step, and a novel two-step Putty/light-body impression technique: an in vitro study. J Prosthet Dent 2008 Apr;99(4):274-281.
  16. Review of dental impression materials. Adv Dent Res 1988 Aug;2(1):51-64.
  17. Comparative analysis of dimensional precision of different silicone impression materials. J Contemp Dent Pract 2011 May 1;12(3):208-215.
  18. Hydrophilic polyvinyl siloxane impression materials dimensional accuracy, wettability and effect on gypsum hardness. Int J Prosthodont 1991 May-Jun;4(3):240-248.
  19. Dimensional accuracy of dental casts: Influence of tray material, impression material and time. J Prosthodont 2002 Jun;11(2):98-108.
  20. Evaluation of an automatic mixing system for an addition silicone impression material. J Am Dent Assoc 1985 Feb;110(2):213-215.
  21. Effect of tray space on the accuracy of monophasic polyvinylsiloxane impressions. J Prosthet Dent 1992 Jul;68(1):19-28.
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.