Overlay Analysis of Cone-Beam Computed Tomography Images Acquired Before and After Guided Bone Regeneration Surgery
Abstract
Background: Guided Bone Regeneration (GBR) has become one of the most common procedures utilized to augment a deficient edentulous site in preparation for dental implant placement. Success of implant placement depends on the volume of bone and ridge dimensions at the surgical site. Numerous biomaterials and membranes have been successfully used to augment deficient ridges. The purpose of this retrospective study was to evaluate possible associations between subject- and procedure-related variables and increased horizontal ridge dimension following GBR procedures specifically utilizing high density polytetrafluoroethylene (dPTFE) membranes and freeze-dried bone allograft (FDBA). Methods: Pre- and Post-GBR cone beam computed tomography (CBCT) images acquired between July 1, 2012 and November 7, 2016 were included in this analysis. Cone-beam computed tomography images, from two different timepoints, were overlaid and analyzed to measure the amount of ridge augmentation that was achieved. Gains in horizontal ridge dimension and change in vertical height of the crest were assessed with respect to subject- and procedure-related variables: gender, age, smoking status, number of missing teeth in site, anterior versus posterior site, healing time, titanium reinforcement of membrane, membrane fixation, tenting screw use, and membrane removal prior to implant placement.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 04, 2019
- Accession Number
- AD1128113
Entities
People
- Dane T. Swenson
Organizations
- Uniformed Services University of the Health Sciences