Journal of Oral Implantology June 2013 - (Page 386)

LITERATURE REVIEW Clinical Importance of Recipient Site Characteristics for Vertical Ridge Augmentation: A Systematic Review of Literature and Proposal of a Classification Arash Khojasteh, DMD, MS1* Golnaz Morad, DDS2 Hossein Behnia, DMD, MS1 This review evaluated the characteristics of vertical alveolar defects that were augmented via onlay bone grafting or guided bone regeneration. Information regarding the anatomic site, type of edentulism, and defects’ dimensions were extracted. The experiments differed vastly in the description of the defects’ features. Aiming to mitigate the confounding effect of recipient site’s morphology in future experiments, a classification of vertically deficient recipient sites is proposed. Key Words: alveolar bone defect, vertical ridge augmentation, onlay bone graft, guided bone regeneration INTRODUCTION P resence of sufficient alveolar bone volume is one of the principal prerequisites for implant treatment.1 A considerable part of recent research has been directed toward distinguishing the most favorable augmentation procedure for restoring deficient alveolar ridges.1–3 Restoration of alveolar vertical defects has remained a challenge in reconstructive surgery.4,5 A variety of augmentation techniques, namely onlay bone grafting (OBG), inlay bone grafting, guided bone regeneration (GBR), and distraction osteogenesis have been used for augmentation of vertical defects, using different types of bone grafts and stimulating factors.3 The applicability of augmentation procedures, to a large extent, depends on the recipient site morphology.6 On one hand, it influences choosing the optimal treatment modality, given that the selection criteria 1 Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Dental Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. 2 Dental Research Center, Faculty of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran. * Corresponding author, e-mail: DOI: 10.1563/AAID-JOI-D-11-00210 386 Vol. XXXIX /No. Three / 2013 for different augmentation techniques are partly established based on the characteristics of the recipient site.7–9 In addition, the suitability of bone graft options with different regenerative properties should be determined in view of the regenerative demands of the defect.10 On the other hand, the regenerative potential of the recipient site is a major factor for effective bone formation within the augmented area.11 A bony region with compromised vascularization and cellularity shows suppressed healing ability.12 It has also been suggested that the morphology of alveolar ridge significantly affects bone regeneration.8 The focus of studies has been mainly on improving the techniques and introducing novel augmentation materials to provide more promising outcomes. However, the variation among studies does not allow for a generalized conclusion on the effectiveness of the suggested protocols.1 This inconsistency may be partly due to imprecise consideration of the properties of recipient sites within the study designs. To verify the validity of this assumption, a systematic review was conducted on experiments evaluating vertical alveolar ridge augmentation as a pre-implant reconstructive surgery. The aim was to assess the characteristics

Table of Contents for the Digital Edition of Journal of Oral Implantology June 2013

Congratulations to Duke Heller, DDS, MS—Pioneer, Teacher, and Mentor
In Vitro Analysis of Resistance to Cyclic Load and Preload Distribution of Two Implant/ Abutment Screwed Connections
Mandibular Implant-Supported Overdenture: An In Vitro Comparison of Ball, Bar, and Magnetic Attachments
An Exploratory Study on Assessment of Gingival Biotype and Crown Dimensions as Predictors for Implant Esthetics Comparing Caucasian and Indian Subjects
A New Approach to the All-on-Four Treatment Concept Using Narrow Platform NobelActive Implants
Regular and Switching Platform: Bone Stress Analysis With Varying Implant Diameter
Comparison Between Immediate and Delayed Laser-Treated Implants Surface With Switching Platform: A Clinical Retrospective Study
Effect of a Multiporous Beta–Tricalicum Phosphate on Bone Density Around Dental Implants Inserted Into Fresh Extraction Sockets
The Effect of Varying Implant Position in Immediately Loaded Implant-Supported Mandibular Overdentures
Bone Regeneration Around Immediate Implants Utilizing a Dense Polytetrafluoroethylene Membrane Without Primary Closure: A Report of 3 Cases
Socket Preservation and Sinus Augmentation Using a Medical Grade Calcium Sulfate Hemihydrate and Mineralized Irradiated Cancellous Bone Allograft Composite
Implant Placement and Immediate Loading With Fixed Restorations in Augmented Sockets. Five-Year Results. A Case Report
Immediate Placement and Provisionalization With Buccal Plate Preservation: A Case Report of a New Technique
Clinical Importance of Recipient Site Characteristics for Vertical Ridge Augmentation: A Systematic Review of Literature and Proposal of a Classification
Postextraction Implant in Sites With Endodontic Infection as an Alternative to Endodontic Retreatment: A Review of Literature
Letter to the Editor

Journal of Oral Implantology June 2013