title: A clinical report on the use of closed-tray, hex-lock-friction-fit implant impression copings.
abstract: The precision of an impression determines the subsequent accuracy and fit of the final restoration. Therefore, the ultimate search is for the most accurate impression material and the most efficient and least time consuming technique. One of the major debates in implant dentistry has focused on the advantages of the pick-up versus the transfer impression technique. The pick-up technique is widely accepted as the more accurate. However, the conventional transfer technique is simpler and less time consuming. The Hex-Lock-Friction-Fit impression coping (AB Dental Devices) combines the advantages of the transfer impression technique and the pick-up impression technique. In this article we will review the relevant literature, discuss the advantages of this unique implant impression technique, and present some related clinical cases.
authors.affiliation: 1  Faculty of Dentistry, McGill University and Department of Dentistry, Jewish General Hospital, Montreal, Canada.
authors.forename: Eli
authors.initials: E
authors.lastname: Raviv
authors.forename: Jan
authors.initials: J
authors.lastname: Hanna
authors.forename: Roy
authors.initials: R
authors.lastname: Raviv
authors.forename: Mili
authors.initials: M
authors.lastname: Harel-Raviv
mesh_terms: D015921:Dental Implants; D003760:Dental Impression Materials / Q000737:chemistry; D003761:Dental Impression Technique / Q000295:instrumentation*; D019094:Dental Prosthesis, Implant-Supported; D003779:Denture Design; D003830:Denture, Partial, Fixed; D005260:Female; D006801:Humans; D008334:Mandible / Q000601:surgery; D008875:Middle Aged; D011145:Polyvinyls / Q000737:chemistry; D012117:Resins, Synthetic / Q000737:chemistry; D012833:Siloxanes / Q000737:chemistry; D013499:Surface Properties; D013997:Time Factors
chemical_list: D015921:Dental Implants; D003760:Dental Impression Materials; C022821:Impregum; C495447:Permadyne; D011145:Polyvinyls; D012117:Resins, Synthetic; D012833:Siloxanes; C034183:vinyl polysiloxane
keywords: implants; impression; transfer coping