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The Scientific World Journal
Volume 2014, Article ID 738643, 5 pages
Clinical Study

Oral Crest Lengthening for Increasing Removable Denture Retention by Means of CO2 Laser

1Department of Dental Sciences, Faculty of Medicine, University of Liege, Liege, Belgium
2Department of Prosthodontic, Faculty of Dentistry, Lebanese University, Beirut, Lebanon
3Department of Oral and Maxillo-Facial Surgery, Faculty of Dentistry, Lebanese University, Beirut, Lebanon

Received 8 August 2014; Revised 18 August 2014; Accepted 19 August 2014; Published 14 October 2014

Academic Editor: Umberto Romeo

Copyright © 2014 Samir Nammour 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.


The loss of teeth and their replacement by artificial denture is associated with many problems. The denture needs a certain amount of ridge height to give it retention and a long-term function. Crest lengthening procedures are performed to provide a better anatomic environment and to create proper supporting structures for more stability and retention of the denture. The purpose of our study is to describe and evaluate the effectiveness of CO2 laser-assisted surgery in patients treated for crest lengthening (vestibular deepening). There have been various surgical techniques described in order to restore alveolar ridge height by pushing muscles attaching of the jaws. Most of these techniques cause postoperative complications such as edemas, hemorrhage, pain, infection, slow healing, and rebound to initial position. Our clinical study describes the treatment planning and clinical steps for the crest lengthening with the use of CO2 laser beam (6–15 Watts in noncontact, energy density range: 84.92–212.31 J/cm2, focus, and continuous mode with a focal point diameter of 0.3 mm). At the end of each surgery, dentures were temporarily relined with a soft material. Patients were asked to mandatorily wear their relined denture for a minimum of 4–6 weeks and to remove it for hygienic purposes. At the end of each surgery, the deepest length of the vestibule was measured by the operator. No sutures were made and bloodless wounds healed in second intention without grafts. Results pointed out the efficiency of the procedure using CO2 laser. At 8 weeks of post-op, the mean of crest lengthening was stable without rebound. Only a loss of 15% was noticed. To conclude, the use of CO2 laser is an effective option for crest lengthening.