Altering internal surface of putty impression material for better recording of tooth preparation margins

Document Type : Technical Notes


Dental Material Research Center, Department of Prosthodontics, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.


This article describes the clinical procedures for a modified putty-wash impression technique. In this method, the hydraulic pressure induced from planned flowing the wash material from the inner surface of putty impression toward the vestibules pull over the gingival tissues covering the finishing line. This simple method reduces the need to using retraction cord in normal depth finishing line in the gingival sulcus.


Main Subjects

  1. Baba NZ, Goodacre CJ, Jekki R, Won J. Gingival displacement for impression making in fixed prosthodontics: contemporary principles, materials, and techniques. Dent clin North Am 2014; 58:
  2. Chaimattayompol N, Park D. A modified putty-wash vinyl polysiloxane impression technique for fixed prosthodontics. J Prosthet Dent 2007; 98: 483-5.
  3. Wu AY, Donovan TE. A modified one-step putty-wash impression technique. J Prosthet Dent 2007; 98: 245-6.
  4. Caputi S, Varvara G. 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; 99: 274-81.
  5. Samet N, Shohat M, Livny A, Weiss EI. A clinical evaluation of fixed partial denture impressions. J Prosthet Dent 2005; 94: 112-7.
  6. [Bhansali S, Bhansali N, Singh K, Agarwal B. An impression technique for preserving interdental papillae. J Indian Prosthodont Soc 2010; 10: 226-9.
  7. Marshak B, Assif D, Pilo R. A controlled putty-wash impression technique. J  Prosthet Dent 1990; 64: 635-6.
  8. Livaditis GJ. The matrix impression system for fixed prosthodontics. J  Prosthet Dent 1998;79:
  9. Schoenrock GA. The laminar impression technique. J Prosthet Dent 1989; 62: 392-5.
  10. Schoenrock GA. The laminar impression technique. Dentistry Today 2002; 21: 56-63.
  11. Goldfogel MH, Bomberg TJ, Bomberg SE. Tube impressions: an alternative technique for taking difficult crown and bridge impressions with minimal gingival trauma. Quintessence Int 1989; 20: 555-60.
  12. Lococo MP. The hydrodynamic impression technique. Oral Health 1983; 73: 43-5.
  13. Lococo MP. The hydrodynamic impression technique. J Can Dent Assoc 1986; 52: 1001-3.
  14. LaForgia A. Cordless tissue retraction for impressions for fixed prosthesis. J Prosthet Dent 1967; 17: 379-86.