1. Copper band and tray technique for anterior jacket and crown impressions;Dubin;J Can Dent Assoc,1971
2. Tube impressions: an alternative technique for taking difficult crown and bridge impressions with minimal gingival trauma;Goldfogel;Quintessence Int,1989
3. Cordless tissue retraction for impressions for fixed prosthesis;LaForgia;J Prosthet Dent,1967
4. A procedure for making fixed prosthodontic impressions with the use of preformed crown shells;Dimashkieh;J Prosthet Dent,1995
5. A new approach to impression taking for crown and bridge;Cannistraci;Dent Clin North Am,1965