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International Journal of Dentistry
Volume 2015 (2015), Article ID 104903, 7 pages
Research Article

Various Techniques to Increase Keratinized Tissue for Implant Supported Overdentures: Retrospective Case Series

1Department of Periodontology and Implant Dentistry, New York University College of Dentistry, 345 East 24th Street, New York City, NY 10010, USA
2Universidad Francisco Marroquín, 01010 Guatemala City, Guatemala

Received 18 March 2014; Revised 7 October 2014; Accepted 21 October 2014

Academic Editor: Sang-Choon Cho

Copyright © 2015 Ahmed Elkhaweldi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Purpose. The purpose of this retrospective case series is to describe and compare different surgical techniques that can be utilized to augment the keratinized soft tissue around implant-supported overdentures. Materials and Methods. The data set was extracted as deidentified information from the routine treatment of patients at the Ashman Department of Periodontology and Implant Dentistry at New York University College of Dentistry. Eight edentulous patients were selected to be included in this study. Patients were treated for lack of keratinized tissue prior to implant placement, during the second stage surgery, and after delivery of the final prosthesis. Results. All 8 patients in this study were wearing a complete maxillary and/or mandibular denture for at least a year before the time of the surgery. One of the following surgical techniques was utilized to increase the amount of keratinized tissue: apically positioned flap (APF), pedicle graft (PG), connective tissue graft (CTG), or free gingival graft (FGG). Conclusions. The amount of keratinized tissue should be taken into consideration when planning for implant-supported overdentures. The apical repositioning flap is an effective approach to increase the width of keratinized tissue prior to the implant placement.