Journal of Oral Implantology October 2012 - (Page 617)

CASE REPORT A Functional Open-Tray Impression Technique for Implant-Retained Overdenture Prostheses Tuncer Burak Ozcelik DDS, PhD1 Burak Yilmaz, DDS, PhD2* Several implant impression techniques with different materials have been described in the literature. Generally, border molding, functional, and final impressions have been made with 3 different materials, which makes the procedure technique-sensitive and time-consuming. A combination of open-tray and functional impression techniques is described in this technical report. Border molding and functional impression procedures are made at the same time using a vinyl polysiloxane impression material, which makes this technique a simple and timeefficient alternative for clinicians. Key Words: implant, functional impression, open-tray INTRODUCTION btaining accurate impressions of implant position and the surrounding hard and soft tissues are paramount for fabricating esthetic and biologically functional restorations.1 An inaccurate impression might result in an illfitting prosthesis, which may lead to mechanical and/or biological complications. Screw loosening and fracture, implant fracture, and occlusal instability have been reported as mechanical complications occurring due to prosthesis misfit.2–5 Biologically, marginal discrepancy from misfit might cause unfavorable soft- and/or hard-tissue responses arising from increased plaque accumulation.6,7 Even though it is not possible to obtain absolute passive fit,8 minimizing the misfit to prevent possible complications is a generally accepted goal of prosthodontic implant procedures. Implant retained overdentures are supported by 2 structures that have different resilience: the implants and the soft tissues. Consequently, the difference in resilience between implant and Department of Prosthodontics, Faculty of Dentistry, Baskent University, Adana, Turkey. 2 Division of Restorative, Prosthetic and Primary Care Dentistry, College of Dentistry, The Ohio State University, Columbus, Ohio. * Corresponding author, e-mail: yilmaz.16@osu.edu DOI: 10.1563/AAID-JOI-D-10-00159 1 O mucosa should be considered for the impression of implant-tissue supported overdentures.9,10 The functional impression technique records the mucosa in a functional fashion and simultaneously records the implant components along with the alveolar tissues. The major advantage of this technique is that it provides an accurate relation of the implant components and the supporting tissues.10 Functional impression techniques for implantretained overdentures have been reported in the literature.10,11 In these studies, border molding, functional, and definitive impressions have been performed using 3 different materials. These different steps make the procedure complex, technique sensitive in recording the border relation with different impression materials, and more time consuming compared with a single-stage impression technique. A combination of open-tray and functional impression techniques is described in this technical report. This combined technique has some advantages over previous techniques. Border molding and functional impression procedures are made at the same time with the use of a vinyl polysiloxane (VPS) impression material that has been previously recommended for this application.12 This combined technique appears to Journal of Oral Implantology 617

Table of Contents for the Digital Edition of Journal of Oral Implantology October 2012

Should the Implant Fit the Patient or Should the Patient Fit the Implant?
Histologic and Biomechanical Evaluation of Alumina-Blasted/Acid-Etched and Resorbable Blasting Media Surfaces
Impact of Dental and Zygomatic Implants on Stress Distribution in Maxillary Defects: A 3-Dimensional Finite Element Analysis Study
Precision of Implant Placement With Stereolithographic Templates: A Pilot In Vitro Study
An Evaluation of Biocompatibility of Indigenously Produced Pure Titanium: An Experimental Study in Rabbits
Relationship Between Smoking and Bleeding on Probing
Stress Analysis in Platform-Switching Implants: A 3-Dimensional Finite Element Study
Acrylic Resin Polymerization in Direct Contact to the Abutment and the Temperature at Bone-Implant Interface: A Pilot In Vitro Study
Clinical Application of Stereolithographic Surgical Guide With a Handpiece Guidance Apparatus: A Case Report
Fixed Rehabilitation of Severely Atrophic Jaws Using Immediately Loaded Basal Disk Implants After In Situ Bone Activation
A Functional Open-Tray Impression Technique for Implant-Retained Overdenture Prostheses
Use of Plasma Rich in Growth Factor for Schneiderian Membrane Management During Maxillary Sinus Augmentation Procedure
A Technique to Facilitate the Fabrication of Provisional Restorations for ITI Solid Abutments
Influence of Etiologic Factors in Peri-Implantitis: Literature Review and Case Report
Simplistic Partially Limiting Surgical Guide for Flapless Implant Placement: A Case Report
Types of Implant Surgical Guides in Dentistry: A Review
Rehabilitation of Atrophic Posterior Maxilla With Zygomatic Implants: Review

Journal of Oral Implantology October 2012